Find free STEM teaching resources for your classroom, from hands-on engineering challenges to coding activities and interactive science tools. Select a category to explore lessons, projects and planning materials.
STEM lesson plans & classroom activities
TeachEngineering
Standards-aligned engineering lessons and hands-on activities for K–12 classrooms.
Explore resource →NASA STEM Engagement
Space and Earth science STEM activities, educator resources and challenges.
Explore resource →Science Buddies
Free STEM project ideas, lesson plans and engineering design activities.
Explore resource →Smithsonian Learning Lab
Create and explore collections using Smithsonian digital learning materials.
Explore resource →PBS LearningMedia
Search free classroom videos, lesson plans and interactive STEM materials.
Explore resource →STEMfinity Free STEM Resources
Browse a third-party collection of free online STEM resources, organized by subject, learning environment, age and resource type.
Explore resource →Engineering & design challenges
DiscoverE
Engineering activities and resources for introducing students to design and problem-solving.
Explore resource →TryEngineering
IEEE engineering lesson plans and classroom activities.
Explore resource →NASA STEM Activities
Hands-on challenges and learning resources focused on science and engineering.
Explore resource →Science Buddies Engineering Design
Projects and guidance for teaching the engineering design process.
Explore resource →Coding, robotics & computational thinking
Code.org
Free coding activities and computer science courses for students.
Explore resource →Scratch
Create stories, games and animations with block-based coding.
Explore resource →micro:bit Educational Resources
Projects and teaching resources for physical computing and coding.
Explore resource →Geyer Coding & Programming Resources
Browse Geyer's curated collection of coding and classroom robotics resources.
Explore resource →Geyer Robotics Challenge Mat Curriculum
Download curriculum for robotics challenge mats; physical mats sold separately.
Explore resource →Interactive tools & virtual exploration
PhET Interactive Simulations
Free interactive simulations for science and math exploration.
Explore resource →Exploratorium Science Snacks
Low-cost, hands-on science activities and demonstrations.
Explore resource →NASA Eyes
Explore Earth, the solar system and space missions through interactive visualizations.
Explore resource →NOAA Education
Ocean, weather and climate educational materials and activities.
Explore resource →Educator planning & professional resources
NGSS Resources
Review the Next Generation Science Standards and supporting resources.
Explore resource →NSTA Free Resources
Find selected free science teaching resources, lessons and articles; some materials may require registration.
Explore resource →STEM Teaching Tools
Free briefs and tools to support equitable STEM instruction and planning.
Explore resource →Geyer Science Resources
Additional free science lessons, simulations and educator materials.
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