I wanted to give my second-grader son a little extra arithmetic practice this summer, so instead of making a set of flash cards out of posterboard or index cards, last week I quickly slapped together a random addition, subtraction, and multiplication activity using the Rocket Rangers Preschool app as a test harness.
This arithmetic activity I prototyped will be one of several activities in a new Rocket Rangers Math project for K-3 students, which is still in the design stage. Design and more prototyping work will take place this summer, with my son acting as chief tester.