Maria’s friends are riding a big roller coaster. It goes too fast for Maria.

Maria will try the swing. She's excited! It doesn't go too fast.

Build the swing for Maria to ride.

Here's your challenge: create the program that makes the swing move.

Create the program. It makes the swing move.

Test your program.

Change your program. Make the swing better for a friend who wants a more exciting ride.

Upgrade the swing for Maria and her friend.