Teachers · K1–12
Elementary, middle, and high school.Math
Khan Academy Math (K-12)
Full K-12 math curriculum with practice and mastery tracking.
Khan Academy
Science
CK-12 FlexBooks — Science
Free customizable textbooks for elementary through high school science.
CK-12
Physics
PhET Interactive Simulations
Free interactive math and science simulations from CU Boulder.
PhET
Science
NASA STEM Engagement
Lessons, activities, and projects for K-12 classrooms.
NASA
Computer Science
Code.org CS Fundamentals
Introductory computer science for K-5 with block-based coding.
Code.org
Digital Literacy
Common Sense Education
K-12 digital citizenship curriculum and edtech reviews.
Common Sense
General
Scholastic Teaching Resources
Lesson plans, printables, and classroom activities K-8.
Scholastic
Reading
Newsela — Leveled Articles
Current-event articles at 5 reading levels for grades 2-12.
Newsela
Math
Desmos Classroom Activities
Interactive math activities and graphing for middle & high school.
Desmos
Computer Science
Scratch Programming
Create stories, games, and animations with block-based coding.
MIT