By Pavel Pomozov and Brandon Chow
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By Pavel Pomozov and Brandon Chow
Calculus for Kids and Physics for Kids are picture books that explain big ideas with things kids already know, like a ball rolling down a slide or a dog chasing a butterfly. Ride the wagon down the trail and try each one yourself.
Scroll to ride
By Pavel Pomozov and Brandon Chow
Calculus for Kids and Physics for Kids are picture books that explain big ideas with things kids already know, like a ball rolling down a slide or a dog chasing a butterfly. Ride the wagon down the trail and try each one yourself.
Scroll to ride
BooksBooks
Danny the Dog explores calculus, and Ryan the Rabbit explores physics. We think a hard idea gets a lot less scary once you can picture it, so that's where both books start.
1CalculusCalculus, stop 1 of 5
A function is a rule that turns one number into another. Danny's magic flower doubles whatever you give it, so 2 comes out as 4 and 3 comes out as 6.
2CalculusCalculus, stop 2 of 5
Danny walks halfway to the tiny door, then halfway again, and again. The gap shrinks toward zero, but he never quite gets there. A limit is the value you keep getting closer to, and here it's zero.
3CalculusCalculus, stop 3 of 5
Danny chases a butterfly that can fly slow or fast. A derivative tells you how fast something is changing at one exact moment. The arrow shows the butterfly's speed and direction right now.
4CalculusCalculus, stop 4 of 5
Rectangles are easy to measure and curved hills aren't, so Danny fills the space under the hill with rectangles. The thinner they get, the smaller the gaps, and their total creeps closer to the true area.
5CalculusCalculus, stop 5 of 5
In the front line, each ant carries one leaf, and every new ant adds a term to the sequence. In the back line, the first ant carries 1 leaf, the next carries 2, and so on, and the series adds them all up.
1PhysicsPhysics, stop 1 of 5
Ryan lets a ball roll down a wooden track. Gravity speeds it up the whole way, so it covers more ground every second. Speed is how fast it's going, and acceleration is how fast the speed changes.
2PhysicsPhysics, stop 2 of 5
Ryan gives a light crate and a heavy crate the exact same push. A force is any push or pull that changes how something moves. The light crate speeds up more, so it slides much farther before friction stops it.
3PhysicsPhysics, stop 3 of 5
A ball at the top of the slide has stored energy. As it rolls down, that turns into moving energy, and a little becomes heat from rubbing and bumping. Add it all up and the total never changes.
4PhysicsPhysics, stop 4 of 5
Ryan drops a pebble into the pond and watches the ripples spread. Waves carry energy outward, so the rings get lower as they grow wider. A plucked string shakes the air in waves too, and that's the sound you hear.
5PhysicsPhysics, stop 5 of 5
Close the switch and electricity flows around the circuit. The bulb lights up, and the coil turns the iron horseshoe into a magnet that pulls the paper clip without touching it. Open the switch and the clip swings free.
WatchWatch
On our YouTube channel, we try the ideas from the books with real things, like balls on ramps and magnets on a table.
PlayPlay
Ryan and the Physics Quest is ready to play. On a phone, turn it sideways.
SchoolsSchools
We bring the books and a few live science demos to schools, and we leave plenty of time for questions. If you'd like, we can sign books at the end.
Click the right side of the board to go forward, or the left side to go back.
Our StoryOur Story
We wanted curious kids to meet calculus and physics early, long before they sit down in a class about them. So we used pictures and everyday things that make the ideas easy to imagine.