All Subjects
BetterLesson

Exemplary lessons, strategies, and coaching from master teachers
Bottom Line: Take advantage of the offerings of this professional community to improve the quality of your classroom instruction.
PBS LearningMedia

Treasure trove of lesson resources will benefit from adaptation
Bottom Line: For teachers with time to sift through and adapt materials, PBS LearningMedia has a lot to offer with some highly useful support materials.
Peekapak

Complete multimedia SEL units in a neat and tidy package
Bottom Line: Detailed social and emotional learning lessons provide teachers with almost everything they'll need to spark positive character development and reflection in their students.
OER Commons

Free, easy access to a wealth of resources
Bottom Line: Impressive resource opens access to quality materials for all educators.
Statistics in Schools

Interactive data, practical plans bring the Census to the classroom
Bottom Line: Engaging and authentic material connects the U.S. Census to many subject areas.

Visually appealing, endlessly creative gallery of images and ideas
Bottom Line: An effective way to search for new ideas and save them for later use, but keep an eye on the source -- and on your watch.
ELA and Social Studies
ReadWriteThink

Free hub for literacy lessons aims to deepen learning, engagement
Bottom Line: This is a trustworthy site that teachers of all grades/subjects could find a way to use weekly for lessons or professional development.
ReadWorks

Differentiate reading instruction with high-quality texts and lessons
Bottom Line: The quality and scope of texts, lesson plans, assessments, and supports on this platform can help facilitate online or offline targeted reading instruction in nearly any home or classroom.
Learning for Justice

Thought-provoking classroom resources support diversity education
Bottom Line: It's an invaluable teacher tool to help reduce prejudice and encourage tolerance in schools, as well as within society as a whole.
826 Digital

Popular after-school program shares its resources to inspire writing
Bottom Line: This is a worth-bookmarking resource thanks to relatable writing lessons and motivating examples of actual student writing.
TeachRock

In-depth, interdisciplinary lessons crank up the learning
Bottom Line: This site's materials have the potential to supplement, augment, or even replace favorite units of study, once teachers dig into and master what's offered.
Annenberg Classroom

Civics website makes teaching the Constitution manageable, meaningful
Bottom Line: Go for the videos, stay for the lessons: Annenberg Classroom saves teachers' prep time when teaching the Constitution, current events, or other civics lessons.
Facing History and Ourselves

A wealth of resources explore racism, prejudice, and anti-Semitism
Bottom Line: These valuable materials empower students to understand and address difficult ethical choices -- past and present.
iCivics

Well-designed games, lessons can spice up your civics curriculum
Bottom Line: This game-based curriculum would be an excellent addition to any secondary social studies.
Zinn Education Project

Resources, lessons help teach a more inclusive version of U.S. history
Bottom Line: Free downloadable resources encourage critical thinking and active learning in search of a more accurate picture of American history.
Digital Civics Toolkit

Superb, timely civics lessons focus on social media and student voice
Bottom Line: For teachers looking to make civics relevant to students, there's nothing else out there as extensive or relevant.
Math and Science
howtosmile

Useful science resource aggregator promotes diverse lessons
Bottom Line: Despite a few broken links, the site's easy and well-organized access to thousands of quality science activities is a valuable teacher resource.
California Academy of Sciences

Expert research and diverse, rich lessons inspire future scientists
Bottom Line: A perfect companion to (or substitute for) the Academy, this site delivers highly interactive resources and research with a lot of depth.
Defined Learning

Stellar collection of STEM resources supports project-based learning
Bottom Line: Excellent, well-thought-out resources for developing problem-solving skills in the classroom.
Inside Mathematics

Dynamic videos and printables support CCSS math practices
Bottom Line: An excellent, free resource for educators who need support and inspiration for teaching and addressing CCSS and mathematical practices.
TryEngineering

Helpful but aging engineering career site caters to all
Bottom Line: This one-stop shop is best used for helping teachers plan engineering lessons and getting students involved with the community.
Citizen Math

Toughest palates can't resist appetizing look at real-world math
Bottom Line: Easy-to-deliver lessons use real-world topics tweens like.
Next Gen Personal Finance

From crypto to Venmo, up-to-date lessons teach key financial skills
Bottom Line: One of the best sources for relevant and useful materials for in-depth units or just grab-and-go discussions and activities about financial literacy.
The Concord Consortium

Vast collection of science resources emphasizes written reflection
Bottom Line: A selection of online science simulations paired with a teacher dashboard to track progress.
Youcubed

Research-backed resources that attack math myths head on
Bottom Line: A fantastic resource for teachers working on changing attitudes toward math and teaching it in an innovate and engaging way.
BioInteractive

High-quality multimedia brings biological research to life
Bottom Line: Superb multimedia tools and lesson plans help kids explore biology through real-world examples.
OER Project

Expansive world history courses powered by great open-source materials
Bottom Line: A stellar program for exploring foundational concepts in history, humanities, critical thinking, and science with tons of support for teachers.