General STEM, Math and Science Lesson Plans 

Hot Careers at NASA--lesson plans to explore STEM careers with NASA.

PBS Teachers Science and Technology Lesson Plans

PBS Teacher Science and Technology Activity Packs--an activity pack is a set of educational resources focused on a theme and packaged in a widget-format that you can embed in your own class or social media web page. each pack includes links to PBS websites and a set of activities by grade level.

Thirteen Ed Online Science Lessons and Technology Lessons--developed by Thirteen Ed Online Master Teachers. Starting with tried-and-true lessons that work in the classroom, our Web-savvy teachers have built Web-based activities that use the rich resources of Thirteen/WNET New York and the Internet.

Arizona State University's STEM Virtual Counseling Center--These resources are ideally suited for use in the classroom, or as after-school, club, and camp activities.

TryScience--Welcome to the Grid--This is a VERY student engaging interactive scientific challenge website. Here students have to use powerful computing grids to solve real-world problems.  Students who are interested in computers, math, and natural disasters such as earthquakes, volcano eruptions, and more will love this site

STEM: The Teaching Life--Wide selection of lesson plans, teaching strategies, and other resources. From Women in STEM.

Inquiry-based Science and Math Activities--for all grade levels.

Questions that Promote Science Inquiry--nice set of 28 questions

Math in Daily Life--Helps answer the question "when will I ever use this?"

Statistics

--Follow a year in the life of a fictional election campaign to see how statistics work.

Cool Careers in Science Multimedia Collection

Crash Scene--Students get to elp the highway patrol recreate a deadly crash by examining the evidence and calculating the forces. Includes a Teacher's Guide. Includes an "Interesting People" section to learn more about related careers.

Explore Materials--videos that explore different types of matter. Developed to meet PA academic standards.

Science Lesson Plans from the NYT

The Chemistry Collective--The Chemistry Collective is a collection of virtual labs, scenario-based learning activities, and concepts tests which can be incorporated into a variety of teaching approaches as pre-labs, alternatives to textbook homework, and in-class activities for individuals or teams. It is organized by a group of faculty and staff at Carnegie Mellon University for college and high school teachers who are interested in using, assessing, and/or creating engaging online activities for chemistry education.

Pseudo-Science Sites--for help in debunking urban myths and other science-related misinformation. Can be a fun way to get at real science concepts.

Lesson Plans from Jefferson Labs--a variety of STEM lesson plans

St. Lawrence County--STEM lesson plans by grade level, K-12

Math Lesson Plans from Teacher's Domain--tied to academic standards. Free registration required.

Science Lesson Plans from Teacher's Domain--tied to academic standards. Free registration required.