The MIT Education Arcade will present Sandbox Summit@MIT, Innovation by Design:  Inspirations for Playful Learning, March 24-25 at MIT’s Stata Center.  In two days of sessions at this annual Sandbox Summit gathering, speakers will explore “the minds behind — and in front of — today’s revolutionary ideas, platforms, places, and products” for playful learning.  Registration is open now ($795).  See videos of Sandbox Summits from earlier years.