Geometry

Learning Trajectories to Support the Growth of Measurement Knowledge: Pre-K Through Middle School

This project is studying measurement practices from pre-K to Grade 8, as a coordination of the STEM disciplines of mathematics and science. This research project tests, revises and extends learning trajectories for children's knowledge of geometric measurement across a ten-year span of human development. The goal will be to validate all components of each learning trajectory, goal, developmental progression, and instruction tasks, as well as revising each LT to reflect the outcomes of the experiments.

Lead Organization(s): 
Partner Organization(s): 
Award Number: 
1222944
Funding Period: 
Wed, 08/01/2012 to Tue, 07/31/2018
Full Description: 

This project is studying measurement practices from pre-K to Grade 8, as a coordination of the STEM disciplines of mathematics and science. This four-year, mixed methods research project tests, revises and extends learning trajectories (LTs) for children's knowledge of geometric measurement across a ten-year span of human development. Specifically, research teams from Illinois State University and the University at Denver are working with children in urban and suburban schools to (1) validate and extend prior findings from previous NSF-funded research developing measurement learning trajectories with children in pre-K to Grade 5, and (2) generate and extend portions of trajectories for geometric measurement for Grades 6-8.

The project employs a form of microgenetic studies with 24-50 children per grade from pre-K through Grade 5 representing a stratified random sample from a specific set of suburban schools. These studies will test the validity, replicability and generalizability of the LTs for length, area, and volume. The goal will be to validate all components of each learning trajectory, goal, developmental progression, and instruction tasks, as well as revising each LT to reflect the outcomes of the experiments. Analysis of variance measures with pre/post assessments in an experimental/control design will complement the repeated sessions method of microgenetic analysis.

To explore and extend LTs for children in Grade 6-8, the project employs teaching experiments. This design is used to generate and extend portions of trajectories for geometric measurement, and to explore critical aspects of measurement in clinical and classroom contexts. This work is coordinated with the teaching and learning standards issued by the Council of Chief State School Officials/National Governors Association, the National Council of Teachers of Mathematics, the National Science Teachers Association, the American Association of the Advancement of Science, and the National Research Council with cognitive and mathematics/science education literature. Emerging constructs for the hypothetical LT levels in relation to relevant frameworks generated by other researchers and those implied by standards documents to establish ongoing sequences of the experimental interventions for grades 6-8 are being compared, critiqued and evaluated.

This project provides a longitudinal account of pre-K to Grade 8 children's ways of thinking and understanding mathematical and scientific concepts of measurement based upon empirical analysis. The resulting learning trajectory will represent state of the art integrated, interdisciplinary, theoretically- and empirically-based descriptions of increasingly sophisticated and complex levels of thinking in the domain of measurement (albeit, more tentative for Grades 6-8). This account will be used to verify and/or modify existing accounts of children's development of reasoning from short-term analyses of learning or cross-sectional studies. There are not yet integrative longitudinal studies describing this cognitive domain for area or volume measurement. This trajectory-based analysis of development and instruction supports the design and testing of integrative, formative assessment of individuals and groups of children. Such learning trajectories will be useful in implementing the standard-focused curriculum described in the Common Core State Standards Mathematics and in supporting the multiple large assessment projects currently underway

Assessing Secondary Teachers' Algebraic Habits of Mind (Collaborative Research: Stevens)

This collaborative project is developing instruments to assess secondary teachers' Mathematical Habits of Mind (MHoM). These habits bring parsimony, focus, and coherence to teachers' mathematical thinking and, in turn, to their work with students. This work fits into a larger research agenda with the ultimate goal of understanding the connections between secondary teachers' mathematical knowledge for teaching and secondary students' mathematical understanding and achievement.

Partner Organization(s): 
Award Number: 
1222496
Funding Period: 
Wed, 08/15/2012 to Sun, 07/31/2016
Full Description: 

Boston University, Education Development Center, Inc., and St. Olaf College are collaborating on Assessing Secondary Teachers' Algebraic Habits of Mind (ASTAHM) to develop instruments to assess secondary teachers' Mathematical Habits of Mind (MHoM). These habits bring parsimony, focus, and coherence to teachers' mathematical thinking and, in turn, to their work with students. MHoM is a critical component of mathematical knowledge for teaching at the secondary level. Recognizing the need for a scientific approach to investigate the ways in which MHoM is an indicator of teacher effectiveness, the partnership is researching the following questions:

1. How do teachers who engage MHoM when doing mathematics for themselves also bring MHoM to their teaching practice?

2. How are teachers' engagement with MHoM and their use of these habits in teaching related to student understanding and achievement?

To investigate these questions, ASTAHM is developing two instruments: a paper and pencil (P&P) assessment and an observation protocol that measure teachers' knowledge and classroom use, respectively, of MHoM.

The work is being conducted in two phases: (1) an instrument-refinement and learning phase, and (2) an instrument-testing and research phase. Objectives of Phase 1 are to gather data to refine the project's existing instruments and to learn about the bridge factors that impact the relationship between teachers' knowledge and classroom use of MHoM. Specific research activities include: administering the pilot P&P assessment to 40 teachers, videotaping Algebra instructions of 8 teachers, performing initial testing and refinement of the instruments, and using the data to analyze the bridge factors. Phase 2 is a large-scale study involving field-testing the P&P assessment with 200 teachers, videotaping 20 teachers and studying them using the observation protocol, collecting achievement data from 3000 students, and checking P&P content validity with 200 mathematicians. With these validated instruments in hand, the project will then conduct an investigation into the above research questions. Lesley University's Program Evaluation and Research Group (PERG) is the external evaluator. PERG is assessing ASTAHM's overall success in developing valid and reliable instruments to investigate the extent to which a relationship exists between teachers' MHoM and their classroom practice, as well as student achievement. Evaluators are also investigating whether users' coding guides for both instruments enable field-testers to effectively use and adequately score them.

This work fits into a larger research agenda with the ultimate goal of understanding the connections between secondary teachers' mathematical knowledge for teaching and secondary students' mathematical understanding and achievement. The MHoM construct is closely aligned with the Common Core State Standards-Mathematics (CCSS-M); especially its Standards for Mathematical Practice. For example, both place importance on seeking and using mathematical structure. Thus the instruments this project produces can act as pre- and post-measures of the effectiveness of professional development programs in preparing teachers to implement the CCSS-M. Mathematics teacher knowledge at the secondary level is an understudied field. Through analyses of the practices and habits of mind that teachers bring to their work, ASTAHM is developing instruments that can be used to shed light on effective secondary teaching.


Project Videos

2019 STEM for All Video Showcase

Title: Studying Teachers' Mathematical Habits of Mind

Presenter(s): Sarah Sword, Eden Badertscher, Al Cuoco, Miriam Gates, Ryota Matsuura, & Glenn Stevens

2017 STEM for All Video Showcase
Title: Assessing Secondary Teachers' Algebraic Habits of Mind

Presenter(s): Sarah Sword, Courtney Arthur, Al Cuoco, Miriam Gates, Ryota Matsuura, & Glenn Stevens

2016 STEM for All Video Showcase

Title: Assessing Secondary Teachers' Algebraic Habits of Mind

Presenter(s): Ryota Matsuura, Al Cuoco, Glenn Stevens, & Sarah Sword


CAREER: Learning to Support Productive Collective Argumentation in Secondary Mathematics Classes

Research has shown that engaging students, including students from underrepresented groups, in appropriately structured reasoning activities, including argumentation, may lead to enhanced learning. This project will provide information about how teachers learn to support collective argumentation and will allow for the development of professional development materials for prospective and practicing teachers that will enhance their support for productive collective argumentation.

Award Number: 
1149436
Funding Period: 
Sun, 07/01/2012 to Sun, 06/30/2019
Full Description: 

Doing mathematics involves more than simply solving problems; justifying mathematical claims is an important part of doing mathematics. In fact, proving and justifying are central goals of learning mathematics. Recently, the Common Core State Standards for Mathematics has again raised the issue of making and critiquing arguments as a central practice for students studying mathematics. If students are to learn to make and critique arguments within their mathematics classes, teachers must be prepared to support their students in learning to argue appropriately in mathematics. This learning often occurs during class discussions in which arguments are made public for all students in the class. The act of creating arguments together in a classroom is called collective argumentation. Teachers need to be able to support students in productively engaging in collective argumentation, but research has not yet shown how they learn to do so. This project will document how mathematics teachers learn to support their students in engaging in productive collective argumentation. The research team will follow a cohort of participants (college students majoring in mathematics education) through their mathematics education coursework, observing their engagement in collective argumentation and opportunities to learn about supporting collective argumentation. The team will continue to follow the participants into their first two years of teaching, focusing on how their support for collective argumentation evolves over time. During their first two years of teaching, the research team and participants will work together to analyze the participants' support for collective argumentation in order to help the participants develop more effective ways to support collective argumentation.

Research has shown that engaging students, including students from underrepresented groups, in appropriately structured reasoning activities, including argumentation, may lead to enhanced learning. This project will provide information about how teachers learn to support collective argumentation and will allow for the development of professional development materials for prospective and practicing teachers that will enhance their support for productive collective argumentation.

Core Math Tools

This project is developing Core Math Tools, a suite of Java-based software including a computer algebra system (CAS), interactive geometry, statistics, and simulation tools together with custom apps for exploring specific mathematical or statistical topics. Core Math Tools is freely available to all learners, teachers, and teacher educators through a dedicated portal at the National Council of Teachers of Mathematics (NCTM) web site.

Lead Organization(s): 
Partner Organization(s): 
Award Number: 
1201917
Funding Period: 
Sun, 01/15/2012 to Mon, 12/31/2012
Project Evaluator: 
David Barnes, NCTM
Full Description: 

Core Math Tools is a project from Western Michigan University that meets the urgent need of providing mathematical tools that students can use as they explore and learn mathematical concepts that are aligned with the Common Core State Standards in Mathematics (CCSSM). The developers have repurposed and modified tools originally designed for an NSF-funded curriculum project (e.g., Core-Plus Mathematics), creating a suite of tools that supports student learning of mathematics regardless of the curricula choice. Core math Tools is Java-based software that includes a computer algebra system(CAS, interactive geometry, statistics, and simulation tools together with custom apps for exploring specific mathematical and statistical topics. The designers provide exemplary lessons illustrating how the software can be used in the spirit of the new CCSSM. The goal of the project is to provide equitable and easy access to mathematical software both in school and outside of school. The tools are available to all learners and teachers through the web site of the National Council of Teachers of Mathematics (NCTM). The web site includes feedback loops for teachers to provide information about the tools. By using the NCTM website, the tools can be downloaded for use by teachers and students. The dedicated portal on the NCTM website allows supervisors to use the tools in professional development, teachers to use the tools as an integral part of instruction, and students to use the tools for exploring, conjecturing, and problem solving.

Multiple Instrumental Case Studies of Inclusive STEM-Focused High Schools: Opportunity Structures for Preparation and Inspiration (OSPrl)

The aim of this project is to examine opportunity structures provided to students by inclusive STEM-focused high schools, with an emphasis on studying schools that serve students from underrepresented groups. The project is studying inclusive STEM-focused high schools across the United States to determine what defines them. The research team initially identified ten candidate critical components that define STEM-focused high schools and is refining and further clarifying the critical components through the research study.

Lead Organization(s): 
Award Number: 
1118851
Funding Period: 
Thu, 09/01/2011 to Mon, 08/31/2015
Full Description: 

The aim of this project is to examine opportunity structures provided to students by inclusive STEM-focused high schools, with an emphasis on studying schools that serve students from underrepresented groups. In contrast to highly selective STEM-focused schools that target students who are already identified as gifted and talented in STEM, inclusive STEM-focused high schools aim to develop new sources of STEM talent, particularly among underrepresented minority students, to improve workforce development and prepare STEM professionals. A new NRC report, Successful K-12 STEM Education (2011), identifies areas in which research on STEM-focused schools is most needed. The NRC report points out the importance of providing opportunities for groups that are underrepresented in the sciences, especially Blacks, Hispanics, and low-income students who disproportionately fall out of the high-achieving group in K-12 education. This project responds specifically to the call for research in the NRC report and provides systematic data to define and clarify the nature of such schools. 

The project is studying inclusive STEM-focused high schools across the United States to determine what defines them. The research team initially identified ten candidate critical components that define STEM-focused high schools and is refining and further clarifying the critical components through the research study. The first phase of the study is focusing on 12 well-established and carefully planned schools with good reputations and strong community and business support, in order to capture the critical components as intended and implemented. Case studies of these high-functioning schools and a cross-case analysis using a set of instruments for gauging STEM design and implementation are contributing toward building a theory of action for such schools that can be applied more generally to STEM education. The second phase of the study involves selecting four school models for further study, focusing on student-level experiences and comparing student outcomes against comprehensive schools in the same district. Research questions being studied include: 1) Is there a core set of likely critical components shared by well-established, promising inclusive STEM-focused high schools? Do other components emerge from the study? 2) How are the critical components implemented in each school? 3) What are the contextual affordances and constraints that influence schools' designs, their implementation, and student outcomes? 4) How do student STEM outcomes in these schools compare with school district and state averages? 5) How do four promising such schools compare with matched comprehensive high schools within their respective school districts, and how are the critical components displayed? 6) From the points of view of students underrepresented in STEM fields, how do education experiences at the schools and their matched counterparts compare? And 7) How do student outcomes compare?

The research uses a multiple instrumental case study design in order to describe and compare similar phenomena. Schools as critical cases are being selected through a nomination process by experts, followed by screening and categorization according to key design dimensions. Data sources include school documents and public database information; a survey, followed by telephone interviews that probe for elaborated information, to provide a systematic overview of the candidate components; on-site visitations to each school provide data on classroom observations at the schools; interviews with students, teachers and administrators in focus groups; and discussions with critical members of the school community that provide unique opportunities to learn such as mentors, business leaders, and members of higher education community that provide outside of school learning experiences. The project is also gathering data on a variety of school-level student outcome indicators, and is tracking the likely STEM course trajectories for students, graduation rates, and college admission rates for students in the inclusive STEM-focused schools, as compared to other schools in the same jurisdiction. Analysis of the first phase of the study aims to develop rich descriptions that showcase characteristics of the schools, using axial and open coding, to determine a theory of action that illustrates interconnections among context, design, implementation, and outcome elements. Analysis of the second phase of the study involves similar processes on four levels: school, student, databases, and a synthesis of the three. Evaluation of the project consists of an internal advisory board and an external advisory board, both of which provide primarily formative feedback on research procedures.

Research findings, as well as case studies, records of instrument and rubric development and use, annual reports, and conference proposals and papers are being provided on a website, in order to provide an immediate and ongoing resource for education leaders, researchers and policymakers to learn about research on these schools and particular models. An effort is also being made to give voice to the experiences of high school students from the four pairs of high schools studied in the second phase of the study. Findings are also being disseminated by more traditional means, such as papers in peer-reviewed journals and conference presentations.

Developing Teaching Expertise in K-5 Mathematics

This project designs materials and an accompanying support system to enable the development of expertise in the teaching of mathematics at the elementary level. The project has four main components: online professional development modules; practice-based assessments; resources for facilitators; and web-based technologies to deliver module content to diverse settings. Three modules are being developed and focus on fractions, reasoning and explanation, and geometry. Each module is organized into ten 1.5 hour sessions.

Project Email: 
Award Number: 
1118745
Funding Period: 
Thu, 09/01/2011 to Fri, 08/31/2018
Project Evaluator: 
American Institutes for Research
Full Description: 

Developers and researchers at the University of Michigan and the University of Denver are engaged in a project to design materials and an accompanying support system to enable the development of expertise in the teaching of mathematics at the elementary level. The project has four main components: a set of online professional development modules; practice-based assessments; a set of resources for facilitators; and web-based technologies to deliver module content to diverse settings. Three modules are planned: one focused on fractions and one focused on reasoning and explanation designed by Deborah Ball, Hyman Bass and the University of Michigan development team; and one on geometry developed by Douglas Clements and Julie Sarama at the University of Denver. Each module is organized into ten 1.5 hour sessions. 

Each module goes through a two-year design and development process that includes initial design, piloting, revision, and dissemination. Modules are piloted in a variety of settings, including university based courses for practicing teachers and district based in-service activities. These contexts include face-to-face professional development, real-time distance learning, and combinations of the two. Data are collected on participant engagement with the modules, on teacher classroom practice, and on mathematical knowledge for teaching.

The modules and associated materials will be widely available and will be free to schools. The materials can be imported into any learning management system, such as Blackboard, Moodle, and others.

Mathematical Argumentation in Middle School: Bridging from Professional Development to Classroom Practice

This exploratory project is working in collaboration with teachers to increase their knowledge of mathematics for teaching in middle school. In addition to geometry and algebra, the research component of the project is providing insights into how teachers use their mathematical knowledge to increase argumentation in the classroom and to help students build skills in mathematical argumentation.

Lead Organization(s): 
Award Number: 
1119518
Funding Period: 
Sat, 10/01/2011 to Mon, 09/30/2013
Project Evaluator: 
SRI International evaluation team
Full Description: 

Mathematical Argumentation in the Middle School is an exploratory project that is working in collaboration with teachers to increase their knowledge of mathematics for teaching in middle school. In addition to geometry and algebra, the professional development is focusing on the role of mathematical argumentation in the middle school and strategies for increasing argumentation. The research component of the project is providing insights into how teachers use their mathematical knowledge to increase argumentation in the classroom and to help students build skills in mathematical argumentation. In addition, the project is studying student outcomes such as reasoning, communication skills, and mathematical knowledge.

The project researchers are using both qualitative and quantitative methodologies to ensure that they have high quality data and analysis that will provide insights into the following research questions: 1) How do teachers use what they learn from the professional development (PD) experiences when they teach in the classroom? 2) To what extent does teachers? use of the project materials and what they learn in the PD result in mathematical argumentation in their classroom discourse? 3) Do students gain conceptual understanding of the mathematics as a result of their participation in argumentation in the classroom? Based on previous research, there is adequate evidence to believe that argumentation in the classroom does increase for participants in the workshop, but the researchers are seeking a better understanding of how teachers use their knowledge and the project materials to enact such an important change in mathematics lessons and in student learning. The professional development uses the dynamic software Geometers' Sketchpad, a carefully-designed, geometry curricular unit, and student materials to help teachers see how to set up a classroom environment that supports mathematical conjectures, arguments, and discussion. The research is done in the classroom and assesses the various components of the professional development in promoting argumentation.

The project is providing insights into how teachers use their mathematical knowledge to implement changes in the classroom. The project is creating effective professional development strategies, a middle school curriculum unit on geometry that emphasizes argumentation, and associated materials. The research is explaining how teachers use their knowledge and the materials and providing information on how students' conceptual knowledge develops through argumentation.

Development of a Cognition-Guided, Formative-Assessment-Intensive, Individualized Computer-Based Dynamic Geometry Learning System for Grades 3-8

This project is focused on creating, testing, refining, and studying a computer-based, individualized, interactive learning system for intermediate/middle school students or by teachers in classrooms. This learning system is called Individualized Dynamic Geometry Instruction and will contain four instructional modules in geometry and measurement that reflect the recommendations of the Common Core State Standards.

Lead Organization(s): 
Partner Organization(s): 
Award Number: 
1119034
Funding Period: 
Thu, 09/01/2011 to Mon, 08/31/2015
Project Evaluator: 
Jeff Shih
Full Description: 

Developers and researchers at Ohio State University and KCP Technologies are creating, testing, refining, and studying a computer-based, individualized, interactive learning system for intermediate/middle school students that can be used by them independently (online or offline) or by teachers in classrooms. This learning system is called Individualized Dynamic Geometry Instruction (iDGi) and will contain four instructional modules in geometry and measurement that reflect the recommendations of the Common Core State Standards (CCSS). iDGi courseware fully integrates research-based Learning Progressions (LPs) for guiding students' reasoning; formative-assessment linked to LPs; instructional sequencing that interactively adapts to students' locations in LPs; built-in student monitoring, feedback, and guidance; and research-based principles of educational media into the modules. The software platform for iDGi development is an extended version of the dynamic geometry computer environment, The Geometer's Sketchpad.

The development process follows recommendations in Douglas Clements' Curriculum Research Framework and includes sequences of development, trials with students, data collection, and revision. The research and evaluation are based on random assignment of approximately 350 students to treatment and control groups. Achievement data are collected using developer-constructed instruments with items that reflect the mathematics topics in the CCSS. Researchers explore the variability at the student, teacher, and school levels using the appropriate level of hierarchical linear models.

Commercial publishers have expressed strong interest in publishing online and offline computer versions of iDGi, an iPad version of iDGi, an online management system for iDGi, and support materials for users and teachers.

Teachers Empowered to Advance Change in Mathematics (TEACH MATH): Preparing Pre K-8 Teachers to Connect Children's Mathematical Thinking and Community-Based Funds of Knowledge

This project will modify the teacher preparation program for preK-8 teachers. The program is designed to help pre-service teachers learn mathematics well, learn to access students' cultural funds of knowledge, and learn to encourage students' mathematical thinking. The developers are designing (a) modules that can be used in teacher preparation courses, (b) a mentoring program for new teachers, and (c) on-line networks to facilitate collaboration among participating teachers and institutions.

Lead Organization(s): 
Award Number: 
1228034
Funding Period: 
Thu, 09/01/2011 to Thu, 08/31/2017
Project Evaluator: 
Research Institute for Studies in Education
Full Description: 

This research and development project will modify the teacher preparation program for preK-8 teachers at six universities located in different regions of the U.S. The new program is designed to help pre-service teachers learn mathematics well, learn to access students' cultural funds of knowledge in ways that will help them teach mathematics, and learn to encourage students' mathematical thinking. By integrating these important bodies of knowledge, pre-service teachers should be better prepared to teach mathematics to the variety of students in their classes. The developers are designing (a) modules that can be used in teacher preparation courses, (b) a mentoring program for new teachers, and (c) on-line networks to facilitate collaboration among participating teachers and institutions.

The project includes a study of how pre-service teachers learn to apply the knowledge they have gained in the program. The research team has planned a longitudinal collection of data that will track the pre-service teachers into their careers. Their goal is to document teachers' understandings of children's mathematical thinking and children's cultural funds of knowledge and to understand the relationship between teachers' understandings and the learning and disposition of preK-8 students. The study will be implemented at all six universities with staggered start dates allowing for analysis and revisions between cohorts.

These research and development efforts have the potential to impact preK-8 teacher preparation through (1) the development of modules that integrate several relevant proficiencies in mathematics teaching, and (2) the research that studies the impact of such a program on the mathematical learning and disposition of preK-8 students.

Math Snacks: Addressing Gaps in Conceptual Mathematics Understanding with Innovative Media

This project is developing and evaluating effectiveness of 15 - 20 short computer mediated animations and games that are designed to: (1) increase students' conceptual understanding in especially problematic topics of middle grades mathematics; and (2) increase students' mathematics process skills with a focus on capabilities to think and talk mathematically.

Lead Organization(s): 
Award Number: 
0918794
Funding Period: 
Tue, 09/01/2009 to Fri, 08/31/2012
Project Evaluator: 
Sheila Cassidy WEXFORD INC.
Full Description: 

View a project spotlight on Math Snacks.

This project Math Snacks: Addressing Gaps in Conceptual Mathematics Understanding with Innovative Media, led by mathematics and education faculty at New Mexico State University, is developing and evaluating effectiveness of 15 - 20 short computer mediated animations and games that are designed to: (1) increase students' conceptual understanding in especially problematic topics of middle grades mathematics; and (2) increase students' mathematics process skills with a focus on problem-solviing and communicating mathematically. The basic research question for this project is whether the planned collection of computer-mediated animations and games can provide an effective strategy for helping students learn core middle grades mathematics concepts in conceptual areas that research suggests are difficult for these students.  A second question relates to types of delivery that are effective for mathematics learning using these tools including in classrooms during extended learning time at home or in informal educational settings. The project is developing and testing the effectiveness of a set of such learning tools and companion print materials, including student and teacher guides, and short video clips documenting best practices by  teachers using the developed materials with students. A pilot study in year 3 and a substantial randomized control trial in year 4 will test the effects of using the Math Snacks web-based and mobile technologies on student learning and retention of identified core middle school mathematics concepts, as measured by performance on disaggregated strands of the New Mexico state standardized mathematics assessments. Thus the project will produce animations and games using the web and new mobile technologies, and useful empirical evidence about the efficacy of their use. One of the key features of the Math Snacks project is development of the mediated games and simulations in a form that can be used by students outside of normal classroom settings on media and game players that are ubiquitous and popular among today's young people. Thus the project holds the promise of exploiting learning in informal settings to enhance traditional school experiences.

Pages

Subscribe to Geometry