Little toys and experiments
Explore the names of ridiculously large numbers, all the way up to a millinillinillinillinillion.
Drag the hands or type a time — learn to tell time with an interactive clock.
A colorful calculator with big, friendly buttons — tap away!
Mix colors together and see what you get — red + blue = ?
Combine fraction pie pieces to fill a circle — how many ways can you make a whole?
Tap a shape to see it up close and learn its name — from circles to decagons!