Mary found mathigon--textbook-of-the-future:

• Slightly builds student knowledge“Its builds students interest more than knowledge ”
• Does not significantly improve teaching efficiency and productivity“Not making a large impact”
• Moderately teach-problem-solvings
• Moderately improves creativity and critical thinking“there are good all class investigations/activities which we have used”
• Moderately improves creativity and critical thinking“there are good all class investigations/activities which we have used”
• Moderately improves parent engagement“some students have gone away and accessed from home”