STEM tools & games

Name in binary generator

Type any name and watch it turn into binary code and then make it into a colorful bead bracelet.

Caesar cipher maker

Scramble a message by shifting the alphabet and then dare a friend to crack it.

Tower of Hanoi

Move the whole stack to the last peg in as few moves as you can. Test yourself in this classic puzzle of logic and patience.

Activity spinner

Can't decide what to do? Give it a spin and let chance pick your next hands-on STEM activity.

Fraction visualizer

See any fraction as a pie and a bar and watch it turn into a percentage and a decimal.

Pattern maker

Pick shapes, colors, letters or pictures, complete the repeating pattern, then print a worksheet to continue by hand.

Find your birthday in Pi

Type your birthday and discover exactly where those digits appear in the never-ending number π.

Learn to tell the time

Drag the hands of an interactive clock and watch it read the time back to you — a playful way to learn to tell time on an analog clock.

Morse code translator

Turn any message into dots and dashes! Press play to hear it beep out loud and flash, just like a real telegraph.

Developmental leap calculator

Enter your baby's due date and get a personal calendar of all 10 developmental leaps, with what to expect from each one.

Color mixing lab

Tap two paint pots and watch the new color appear, make it lighter or darker, then test yourself in the quiz.