- Khan Academy: Offering free online courses, lessons, and practice exercises in various subjects.
- PBS LearningMedia: Providing educational videos, lessons, and interactive resources aligned with curriculum standards.
- TeachThought: A platform offering articles, teaching strategies, and resources for educators.
- National Geographic Education: Providing free teaching materials, activities, and lesson plans focused on science and social studies.
- ReadWriteThink: Offering literacy resources, lesson plans, and interactive materials for English language arts.
- Smithsonian Learning Lab: Access to digital collections, lesson plans, and interactive activities from Smithsonian Institution museums.
- EdHelper: Providing printable worksheets, activities, and resources for various subjects and grade levels.
- CommonLit: Offering free reading passages, assessments, and teaching materials for English language arts.
- TED-Ed: Providing educational videos, lessons, and interactive resources on a wide range of topics.
- Funbrain: Offering interactive games, videos, and educational resources for math, reading, and more.
- Education.com: Access to thousands of worksheets, lesson plans, and activities for various subjects.
- Google for Education: Providing tools, resources, and lesson ideas for educators using Google products.
- Smithsonian’s History Explorer: Offering lesson plans, interactive activities, and historical artifacts for teaching history.
- NASA for Educators: Providing free STEM resources, lesson plans, and activities related to space exploration.
- National Science Teaching Association: Offering resources, articles, and lesson plans for science educators.
- Math-Drills: Providing free printable math worksheets and resources for practice and enrichment.
- Scholastic Teachables: Access to printable educational resources, worksheets, and lesson plans for different subjects and grade levels.
- FreeReading: Offering free phonics, vocabulary, and comprehension resources for teaching reading.
- Open Education Resources (OER) Commons: A platform with a wide range of free educational resources for teachers.
- Teachers Pay Teachers: A marketplace where educators can buy and sell teaching resources, with many free options available.
These 20 amazing sources for free teacher resources provide a wealth of materials, lesson plans, and activities that can enhance teaching and engage students. From online courses to printable worksheets, educators can find a variety of resources to support their instruction across different subjects and grade levels. These sources can help save time in lesson planning and provide meaningful learning experiences for students.

