Mango Market
Count equal groups · Mathematics
Meet Nia and Kai. Help them solve problems together, one scene at a time.
Choose how to take part. You can hear the story, make the text larger, or try an activity away from the screen.
It is Nia's first morning at school. She is quiet at the door. Kai waves and shows her the classroom garden. Their teacher, Ms Rolle, asks everyone to help prepare a welcome table.
Choose your stage and solve a real puzzle. A wrong answer brings a clue, and every solution explains why it works.

Try, ask for a clue, try again, then explain how you know. Progress stays on this device.
Count equal groups · Mathematics
Read for clues · Reading
Observe needs · Science
Early learners count and observe. Older students compare evidence, test ideas and make decisions. College quests ask them to apply what they know.