Austhink - Critical thinking on the web - Tim van Gelder is one of Australia's finest academics on critical thinking. This page has a number of useful resources.
Darwin's Bulldogs - Per their website, the Bulldogs share a common goal of promoting good science education in public schools.
Foundation and Center for Critical Thinking - states that they aim to improve education in primary and secondary schools, colleges and universities. They present publications, conferences, workshops and professional development programs as well as classroom resources.
National Center for Teaching Thinking - A selection of classroom resources. It would be interesting if somebody could evaluate these at some point.
North Shore AU Chapter - This chapter of American's United for Separation of Church and State includes in its resources a brochure titled "Science, Religion and Public Education".
Physics Northwest - (AAPT affiliate) is an organization dedicated to sharing ideas in the teaching of physics.
PISA (Program for International Student Assessment) - An OECD program for assessing the literacy, numerarcy and scientific literacy of students in different countries. The last assessment was in 2006, with another due in 2009.
QuarkNet - Classroom resources and more for physics teachers and students in the area of particle physics.
Robert Carroll's 'Critical Thinking Essay' following TAM V - An interesting, if extensive, read on critical thinking and education. A fair bit of it relies on Richard Paul's work, with some expansion from a personal POV.
Science by Email - In recent years, Science by Email has produced a diverse range of science activities for subscribers to try at home or in the classroom. You can access them via this archive.
Understanding Science - Per the website: "The mission of Understanding Science is to provide a fun, accessible, and free resource that accurately communicates what science is and how it really works."
Why is Science Important? - Film and website: A collection of thoughts from leading scientists, public figures, ...and you.
Graphics for Use in Posters, Presentations, & Handouts Six Critical Questions (color or black & white) and Choices are where you find them (color or greyscale)
Judgment Day, Intelligent Design on Trial - PBS Nova Documentary on the Dover school district trial (Kitzmiller v. Dover) and the ramifications it has for being able to keep Intelligent Design (creationism) out of science classrooms.
National Center for Science Education - Per their website: NCSE is a not-for-profit, membership organization providing information and resources for schools, parents and concerned citizens working to keep evolution in public school science education.
Kansas, 1999 - Adrian Melott's history of the response to creationist's attempt to get creationism added to the state's science standards.
Sigma Pi Sigma statement on evolution and science classroom instruction
Blog of Phys - This blog includes many posts relating to skepticism in the classroom as well as links to critical thinking, physics and physical science related classroom materials.
ICBS Everywhere - Knowledge, science, reason, education, philosophy, behavior, and B.S.
PodBlack Cat - Science, Superstitions and Skeptical Life
Skeptical Teacher - The purpose of this blog is to allow me to expound upon various topics related to skepticism, science, and education.
Skepticism in the Classroom - member website with quick drop in lessons that help teach skepticism and critical thinking.
Critical Thinking Asylum - How are you thinking today?