A little bit of everything, these apps are sure to trick your kids into learning.
Website: http://duolingo.com/
Google Chrome app: https://chrome.google.com/webstore/detail/duolingo/aiahmijlpehemcpleichkcokhegllfjl
Website: https://spark.adobe.com/
Free iPad app: https://itunes.apple.com/us/app/cargo-bot/id519690804?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/geometry101/id842528815?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/geometry101/id842528815?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/qrafter-qr-code-barcode-reader/id416098700?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/qrafter-qr-code-barcode-reader/id416098700?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/qrafter-pro-qr-code-barcode/id468610525?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/qrafter-pro-qr-code-barcode/id468610525?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/brainpop-featured-movie/id364894352?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/brainpop-featured-movie/id364894352?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/google-earth/id293622097?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/google-earth/id293622097?mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.google.earth
Free Mac program: http://www.google.com/earth/download/
Free Windows program: http://www.google.com/earth/download/
Google Chrome app: http://www.google.com/earth/explore/products/plugin.html
Mozilla Firefox extension: http://www.google.com/earth/explore/products/plugin.html
Apple Safari extension: http://www.google.com/earth/explore/products/plugin.html
Website: https://www.google.com/culturalinstitute/
Free iPad app: https://itunes.apple.com/us/app/id1050970557?mt=8&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/id1050970557?mt=8&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.google.android.apps.cultural
Free Android Tablet app: https://play.google.com/store/apps/details?id=com.google.android.apps.cultural
Free Android Phone app: https://play.google.com/store/apps/details?id=com.google.android.apps.docs
Google Chrome app: https://chrome.google.com/webstore/detail/google-drive/apdfllckaahabafndbhieahigkjlhalf
Free iPad app: https://itunes.apple.com/us/app/google-drive/id507874739?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/google-drive/id507874739?mt=8&uo=4&at=10l6SU
Website: http://drive.google.com/
Free Android Tablet app: https://play.google.com/store/apps/details?id=com.google.android.apps.docs
Free Mac program: https://www.google.com/drive/download/
Free Windows program: https://www.google.com/drive/download/
Paid iPad app: http://itunes.apple.com/us/app/stack-the-states/id381342267?mt=8&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/us/app/stack-the-states/id381342267?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/marble-math/id528616029?ls=1&mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/marble-math/id528616029?ls=1&mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/pick-a-path/id545185507?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/pick-a-path/id545185507?mt=8&uo=4&at=10l6SU
Free Mac program: https://prezi.com/desktop/
Free Windows program: https://prezi.com/desktop/
Website: https://prezi.com/
Google Chrome app: https://chrome.google.com/webstore/detail/prezi/acoonfmhnndodekhecidldfdjgooefpg
Free iPad app: https://itunes.apple.com/us/app/facetalker/id451871237?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/facetalker/id451871237?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/math-fight-fun-2-player-mathematics/id738947827?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/math-fight-fun-2-player-mathematics/id738947827?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/sushi-monster/id512651258?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/sushi-monster/id512651258?mt=8&uo=4&at=10l6SU
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
Free iPad app: https://itunes.apple.com/us/app/bluster!/id416160693?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/the-opposites/id480194638?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/the-opposites/id480194638?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/shadow-puppet-edu/id888504640?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/shadow-puppet-edu/id888504640?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/sock-puppets/id394504903?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/sock-puppets/id394504903?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/puppet-pals-2-all-access/id557616416?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/puppet-pals-2-all-access/id557616416?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/puppet-pals-2-free/id589141096?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/puppet-pals-2-free/id589141096?mt=8&uo=4&at=10l6SU
Free iPad app: http://itunes.apple.com/us/app/toontastic/id404693282?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/toontastic-all-access/id563403725?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/doodle-buddy-paint-draw-scribble/id313232441?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/doodle-buddy-for-ipad-paint/id364201083?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/chromville/id748017957?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/chromville/id748017957?mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.imascono.proyecto_dibujar
Free iPad app: https://itunes.apple.com/us/app/moma-art-lab/id529886963?mt=8&uo=4&at=10l6SU
Website: http://www.thinglink.com/
Free iPad app: https://itunes.apple.com/us/app/thinglink/id647304300?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/thinglink/id647304300?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/elements-4d-by-daqri/id782713582?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/elements-4d-by-daqri/id782713582?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/daqri/id421508232?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/daqri/id421508232?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/id431493086?mt=8&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/id431493086?mt=8&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.explaineverything.explaineverything
Free Android Tablet app: https://play.google.com/store/apps/details?id=com.explaineverything.explaineverything
Google Chrome app: https://chrome.google.com/webstore/detail/explain-everything/abgfnbfplmdnhfnonljpllnfcobfebag
Free Android Phone app: https://market.android.com/details?id=com.evernote.skitch
Free iPad app: http://itunes.apple.com/app/skitch-for-ipad/id490505997?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/app/skitch-for-ipad/id490505997?mt=8&uo=4&at=10l6SU
Free Mac program: http://itunes.apple.com/app/skitch/id425955336?mt=12&uo=4&at=10l6SU
Website: http://www.powtoon.com/
Google Chrome app: https://chrome.google.com/webstore/detail/powtoon-edu/ogodblbnhpbcmcjcoopbalconhnloagl
Paid iPad app: https://itunes.apple.com/us/app/green-screen-by-do-ink/id730091131?mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=air.wevideo.camera
Google Chrome app: https://chrome.google.com/webstore/detail/okgjbfikepgflmlelgfgecmgjnmnmnnb
Website: http://www.wevideo.com/
Free Android Phone app: https://play.google.com/store/apps/details?id=fm.audioboo.application
Free iPad app: http://itunes.apple.com/app/audioboo/id305204540?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/app/audioboo/id305204540?mt=8&uo=4&at=10l6SU
Website: http://audioboo.fm/
Free iPhone app: https://itunes.apple.com/us/app/wizard-school/id949704805?mt=8&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/wizard-school/id949704805?mt=8&at=10l6SU