Chemistry

Probing the Relevance of Chemical Identity Thinking in Biochemical Contexts

The solving of problems in biochemistry often uses concepts from multiple disciplines such as chemistry and biology. Chemical identity (CI) is a foundational concept in the field of chemistry, and the knowledge, thinking, and practices associated with CI are used to answer the following questions: “What is this substance?” and “How is it different from other substances?” In this study, we examined the relevance of CI in biochemical contexts and first explored the ways in which practicing biochemists consider CI relevant in their work.

Author/Presenter

Courtney Ngai

Hannah Sevian

Year
2018
Short Description

In this study, we examined the relevance of CI in biochemical contexts and first explored the ways in which practicing biochemists consider CI relevant in their work.

Fostering High School Students’ Conceptual Understanding and Argumentation Performance in Science through Quality Talk Discussions

Flourishing in today's global society requires citizens that are both intelligent consumers and producers of scientific understanding. Indeed, the modern world is facing ever‐more complex problems that require innovative ways of thinking about, around, and with science. As numerous educational stakeholders have suggested, such skills and abilities are not innate and must, therefore, be taught (e.g., McNeill & Krajcik, Journal of Research in Science Teaching, 45(1), 53–78. 2008).

Author/Presenter

P. Karen Murphy

Jeffrey A. Greene

Elizabeth Allen

Sara Baszczewski

Amanda Swearingen

Liwei Wei

Ana M. Butler

Year
2018
Short Description

The purpose of our quasi‐experimental study was to examine the effectiveness of Quality Talk Science, a professional development model and intervention, in fostering changes in teachers’ and students’ discourse practices as well as their conceptual understanding and scientific argumentation. Findings revealed treatment teachers’ and students’ discourse practices better reflected critical‐analytic thinking and argumentation at posttest relative to comparison classrooms.

2018 American Chemical Society National Meeting and Exposition; New Orleans, LA

Event Date
-
Sponsoring Organization

To learn more, visit https://www.acs.org/content/acs/en/meetings/national-meeting.html.

DRK-12 Presenters:

  • Ellen Yezierski, Dillon Frank, Nicholas Spurgus, and Justin Pratt, Miami University (Project: Further Development and Testing of the Target Inquiry Model for Middle and High School Science Teacher Professional Development (Collaborative Research: Yezierski))
Discipline/Topic
Event Type

Scientific Modeling across the K–12 Continuum: Alignment between Theoretical Foundations and Classroom Interventions

STEM Categorization
Day
Thu

Explore methods and challenges associated with supporting and evaluating scientific modeling in K–12 classrooms in this structured poster session.

Date/Time
-

In this interactive panel symposium, presenters will draw from a set of active DR K-12 projects to explore a diverse array of resources, models, and tools (RMTs) designed to operationalize varying perspectives on scientific modeling in elementary, middle, and secondary classrooms across disciplinary domains.

Session Types

Professional development aligned with AP Chemistry curriculum: Promoting science practices and facilitating enduring conceptual understanding

The recent revisions to the advanced placement (AP) chemistry curriculum promote deep conceptual understanding of chemistry content over more rote memorization of facts and algorithmic problem solving. For many teachers, this will mean moving away from traditional worksheets and verification lab activities that they have used to address the vast amounts of content in the AP chemistry course. Moreover, a substantial shift in teachers’ beliefs about teaching and learning of chemistry will be needed to facilitate the transformation of their instructional practices.

Author/Presenter

Deborah G. Herrington

Ellen J. Yezierski

Year
2014
Short Description

Navigating to NGSS Success: Identifying a Research Agenda

Day
Wed

Leaders of three DR K-12 projects identify successful instructional strategies for using technology-enhanced curriculum materials, games, and models to achieve the NGSS practices.

Date/Time
-
2014 Session Types
Collaborative Panel Session

The media, the public, and, indeed, many teachers have significantly criticized the introduction of the Common Core, citing concerns such as that it overcomplicates simple topics, diminishes innovation, and ignores equity issues. Following the recent introduction of the Next Generation Science Standards (NGSS), we need compelling examples and powerful research to prevent premature criticism and ensure successful implementation.

Using Life Cycle Data to Help Teachers Understand Key Energy Concepts

Day
Tues

Participants engage in and provide feedback on digital interactive learning experiences that use National Renewable Energy Laboratory life cycle data and help teachers understand key energy concepts. Please bring your laptop.

Date/Time
-
2014 Session Types
Feedback Session (Work in Development)
Session Materials

Biological Sciences Curriculum Study (BSCS) and project partners are developing an online course for high school science teachers. The purpose of the course is to help teachers understand key energy concepts in alternative energy contexts. The course includes three interactive learning experiences (interactives) that use life cycle data from the National Renewable Energy Lab (NREL).

Preparation and Characterization of a Polymeric Monolithic Column for Use in High-Performance Liquid Chromatography (HPLC)

Author/Presenter

Michael P. Bindis

Stacey Lowery Bretz

Neil D. Danielson

Lead Organization(s)
Year
2011
Short Description

The high-performance liquid chromatography (HPLC) experiment, most often done in the undergraduate analytical instrumentation laboratory course, generally illustrates reversed-phase chromatography using a commercial C18 silica column. To avoid the expense of periodic column replacement and introduce a choice of columns with different stationary phases, we have developed an experiment in which students prepare and test a polymer-based monolithic column. The 10 or 15 cm monolithic column is prepared using 1/8 in. o.d. × 2.3 mm i.d. poly(ether ether ketone) or PEEK tubing. The reaction is accomplished thermally at 60 °C for several hours by polymerization of butyl methacrylate cross-linked with ethylene glycol dimethacrylate in a porogen system consisting of 1,4-butanediol, 1-propanol, and water. Using toluene and naphthalene as analytes, profiles of retention factor as a function of methanol have been shown. A study of essential nutrients can be accomplished by using an ion-pairing reagent to separate thiamine from riboflavin. In addition, plate count and van Deemter plots can be done to determine column efficiency. The experiment can be designed to be completed over a 1 to 3 week period of time. Exposure to polymer chemistry, often not a part of the undergraduate laboratory curriculum, is an additional important aspect of this experiment.