A list of apps than can be used in an elementary classroom.
Free iPad app: https://itunes.apple.com/us/app/sight-words-kids-learn/id472910871?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/sight-words-kids-learn/id472910871?mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.socrative.teacher
Free iPad app: https://itunes.apple.com/us/app/teacher-clicker-socrative/id477620120?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/teacher-clicker-socrative/id477620120?mt=8&uo=4&at=10l6SU
Website: http://www.socrative.com/
Edmodo app: http://www.edmodo.com/publisher/socrative
Google Chrome app: https://chrome.google.com/webstore/detail/socrative-teacher/ofajgnplnindhnhnconjocimijjifaln?hl=en
Free iPad app: https://itunes.apple.com/us/app/learning-a-z/id474207297?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/app/itrace-handwriting-for-kids/id583678381?mt=8&uo=4&at=10l6SU
Free iPad app: http://itunes.apple.com/us/app/motion-math-hungry-fish/id483049169?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/motion-math-hungry-fish/id483049169?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/motion-math-hd/id410521340?mt=8&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/us/app/motion-math/id392489333?mt=8&uo=4&at=10l6SU
Edmodo app: http://www.edmodo.com/publisher/motionmath
Free iPhone app: https://itunes.apple.com/us/app/bill-nye-the-science-guy/id652548755?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/bill-nye-the-science-guy/id652548755?mt=8&uo=4&at=10l6SU
Website: http://www.billnye.com/
Website: http://www.edheads.org/
Website: http://www.learninggamesforkids.com/
Website: http://www.spellingcity.com/
Edmodo app: http://www.edmodo.com/publisher/vocabularyspellingcity
Free iPhone app: https://itunes.apple.com/us/app/spellingcity/id538407602?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/spellingcity/id538407602?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/rocket-speller/id492504689?ls=1&mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/rocket-speller-plus/id583255132?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/rocket-speller/id492504689?ls=1&mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/rocket-speller-plus/id583255132?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/iconverse-assisted-communication/id304852637?mt=8&uo=4&at=10l6SU
Paid iPad app: http://itunes.apple.com/us/app/choiceworks-visual-support/id486210964?mt=8&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/us/app/choiceworks-visual-support/id486210964?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/articulate-it!/id391296844?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/articulate-it!/id391296844?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/sight-words-2-140+-learn-to/id485327896?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/sight-words-2-140+-learn-to/id509795515?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/sight-words-2-140+-learn-to/id485327896?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/sight-words-2-140+-learn-to/id509795515?mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.playsightwordsII
Paid Android Phone app: https://play.google.com/store/apps/details?id=com.playsightwordsIIplus
Free iPad app: http://itunes.apple.com/us/app/spelling-test/id485279878?ls=1&mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/spelling-test/id485279878?ls=1&mt=8&uo=4&at=10l6SU
Website: http://www.sumdog.com/
Website: https://www.funbrain.com/
Paid iPad app: https://itunes.apple.com/us/app/math-bingo/id371338715?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/math-bingo/id371338715?mt=8&uo=4&at=10l6SU