Free for teachers. Up to 100 students with the free version.
Free account for teachers that will allow access to current event articles, quizzes, and customizable classes.
Completely Free. This site can help with eBooks, any content articles, etc. This is an excellent online reference site as well for those ELA standards.
Prodigy & Numberphile
These sites have games and fun videos for math content.
"Access almost 900 math and science lesson plans dating back to 1997. This site did stop uploading in 2006. Some content may be irrelevant, but some math content may still apply.
Free for teachers. Site does offer for you to add a class. You can create assignments, and track performance.
21 Smithsonian Scientists
This has articles and videos in reference to many scientific topics. They have a whole Smithsonian Science Education Center!
Scientific Concepts. This channel has a variety of short videos.
This site has engaging web simulations and activities for students.
NASA Jet Propulsion Labratory.
This site offers it all! Pictures, videos, articles, etc.
Free resources and tools. There is a "kids" section for games and fun activities.
"Teaching People's History" is their tag line.
Kid friendly with game designs and lesson plan suggestions.
This site covers many content areas, Social Studies being one. It offers videos and article content.
EdPuzzle: They do already have many videos created for you, but you can add to these or take away as well as upload your own videos to edit.
FlipGrid.com: Kids love this and it is not being used enough! Great site for allowing them to "tell, explain, show" to you their answers to many questions. There are so many unexplored options within this site.
Canva.com: This site has much more to offer than social media posts and graphics. There are slide templates, worksheets, calendars, and more.
Google Slides, Google Drawing, Google Sites: Each of these offer teachers a way to create content for any subject as well as Google Sites offering another way of opening communication with students and parents. Google sites could be utilized to allow parents to know exactly what's going on with content, tests, assignments, etc. within your class.
Wakelet.com: This site allows you to create content lists. Content of ANY kind. It allows a little organization into your life! (We all need this!) There are so many possibilities with this site.