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From the Smithsonian National Museum of American History - features tons of free classroom resources including history lessons, interactive activities, and more for all grade levels and historical time periods beginning in 1620 through present day. 

 Free classroom resources, activities and games as well as media, maps and more.

 Providing educators, parents, and afterschool professionals with access to the highest quality practices in reading and language arts instruction by offering the very best in free materials.

 Influential videos from expert speakers on education, business, science, tech and creativity, with subtitles in 100+ languages. Ideas free to stream and download.

Free online courses, lessons, and practice.

A free community for sharing instructional videos and content for teachers and students.

With Quizizz, it's really easy to create learning games. It’s simple to add audio, and easy to integrate with Google Classroom and, unlike Kahoot, it shows the question and answers in the same screen so students don’t have split them.

Fun, interactive quiz game.

Interactive, multi-player drawing game, similar to pictionary.

Fun vocab game app similar to "Heads Up" game where you tilt your smartphone for correct answers or to pass. Teacher creates the vocab list, then students have to define word correctly to move on to next. 

These are great ways to use Youtube for teaching more efficiently.

A source of Public Domain media, the Moving Image Archive within the Internet Archive is an index of more than 1.7 million video clips.

 A website that features collections of images, books, essays, audio recordings, and films that are in the public domain.

Free images that depict education-related themes. 

Public domain images.

 Offers a huge library of images that are either in the public domain or have a Creative Common license.

Provides free, high-quality, music in a wide range of genres.

A resource for finding and downloading free sound clips, sound effects, and sound bites.

A name pronunciation tool. Might come in handy.