Looking at STEM education (science, technology, engineering, and math) and advocates for STEAM lessons, which add art to the mix.
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Paid Windows program: https://store.steampowered.com/app/859970/Math_Classroom_Challenge/
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Free iPad app: https://itunes.apple.com/us/app/id1320244591?mt=8&at=10l6SU
Website: http://talkingpts.org/
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Free Android Tablet app: https://play.google.com/store/apps/details?id=org.talkingpoints.parents
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