Mojo and Katie may resemble characters from the cast of Pixar’s “ Inside Out.” But the two critters are stars of their own show: a series of animated shorts, produced by ClassDojo, that aim to help ...

And during free time, she plays ClassDojo’s short personal-growth videos, which use monsters like ClassDojo’s excitable green mascot, Mojo, to teach lessons on empathy and perseverance.

ClassDojo hopes to reverse that trend with its videos, which tell the story of monster Mojo as he directs his first school play, starring his best monster friends.

Valued by Tencent at $1.25 billion, ClassDojo is rolling out its own virtual space for kids this August—putting it on a collision course with Meta, Roblox and others to bring education to the ...