NSF's AISL, ECR and ITEST solicitations were recently announced.
EHR Core Research (ECR)
Deadline: September 10, 2015
Solicitation: http://www.nsf.gov/pubs/2015/nsf15509/nsf15509.htm
Advancing Informal STEM Learning (AISL)
Deadline: November 4, 2015
Solicitation: http://nsf.gov/pubs/2015/nsf15593/nsf15593.htm
Innovative Technology Experiences for Students and Teachers (ITEST)
Deadlines: November 13, 2015, August 10, 2016
Solicitation: http://www.nsf.gov/pubs/2015/nsf15599/nsf15599.htm