pLAy

Build a microchip pattern with LEGO Dots, ink it, and print a whole batch. Start with a read-aloud from Hello Ruby: Journey Inside the Computer, then end by inventing what your microchip might do—and wondering about the world of nanometers.

Draw a program on the ground with chalk, then run it with your feet. Perfect for big groups: each team designs one part of the route and teaches it to the others.

What does computer science and counting have to do with each other? Computers might seem smart, but they actually do the same kind of adding, multiplying and dividing that we do. This is called arithmetic.

Computers are incredibly good at math. So why should you learn to count if a computer can do all the math you can, but faster and without making mistakes?