Skip to main content

SubjectsChange subject

$Colorful measuring jugs pouring juice into a rocket dispenser$

Step 2 of 3 · Select a topic

Choose a maths topic

Pick one topic. You will select a lesson next.

Topics

Choose one topic to see its lessons.

5 topics

Showing all 7 lessons across 5 topics. Pick one topic to focus.

All lessons

Every lesson, grouped by topic

Pick a topic above to focus on one thing at a time.

7 lessons · 5 topics

Fractions

Add unlike fractions and reason about a changing whole.

0/2 completed

$Juice being measured and poured into a rocket-shaped dispenser$ Core · Lesson 01Fractions · Unlike fractionsThe Moon-Juice Mix-UpA rocket recipe uses eighths and twelfths. Lumi finds a common scale, then breaks it at the final step.Start lesson

$Two astronaut crews eating from the same pizza tray in sequence$ Stretch · Lesson 04Fractions · Fractions of a remainderPizza Planet's Last TrayTwo crews eat fractions of different starting amounts. Treating them as the same whole ruins the count.Start lesson

Multiply & Divide

Share equal groups, check remainders, and divide decimals.

0/2 completed

$Collectible cards being shared into four colorful prize boxes$ Warm-up · Lesson 02Multiply & Divide · Division with remaindersThe Tournament Prize PacksA remainder of seven looks finished—until one rule proves that another complete pack is hiding inside it.Start lesson

Glowing wire being shared among seven star-shaped badge displays

Core · Lesson 05Multiply & Divide · Decimal divisionThe Star-Badge Supply DropShared wire, seven displays, and one tiny decimal shift that creates almost ten times too much material.Start lesson

Percentages

Track percentage changes across several steps.

0/1 completed

$Lumi comparing two robot rescue routes with different battery costs$ Stretch · Lesson 03Percentages · Multi-step percentagesThe Robot RescueThe fullest controller at the start is not necessarily the fullest after two different rescue routes.Start lesson

BODMAS

Choose the correct order for mixed operations.

0/1 completed

$Lumi inspecting an oxygen tank in an underwater station$ Stretch · Lesson 06BODMAS · BODMAS with decimalsThe Deep-Sea Robot DiveA dive, a decimal use rate, and a refill must happen in the right mathematical order.Start lesson

Number Riddles

Use clues to rule out impossible answers.

0/1 completed

$A friendly dragon and Lumi investigating a number vault$ Stretch · Lesson 07Number Riddles · Constraint riddleThe Dragon Vault RiddleBoth digits look right, but only one order satisfies every clue on the dragon's vault.Start lesson