RT @Planboard: Hear CEO @WilliamWZ share @chalkdotcom story on #datadriven #education next week in London @EdTechEurope #EdTechX17 https://…

Posted on June 16th, 2017

RT @Planboard: Hear CEO @WilliamWZ share @chalkdotcom story on #datadriven #education next week in London @EdTechEurope #EdTechX17 https://…