Fraction Galaxy
Move through a fraction puzzle galaxy by solving math gates and pushing blocks into the right places.
Skill: Fractions in context
Fraction Galaxy turns fraction questions into keys: each gate only opens when the fraction problem in front of it is solved, and the rooms in between ask you to push blocks into place. The creator labels it a demo, so treat it as a short challenge rather than a full course.
It works best for learners who already know what a fraction is and can compare or add simple fractions. Have paper ready; working fractions out in your head while steering a character is harder than it looks.
How to play
- Click the computer icon to choose keyboard controls, then press any key on the title screen.
- On the level selector (the bobbing 01), press Space to start the highlighted level. Mouse clicks do not start a level.
- In a level, use the arrow keys to move and push blocks, following the on-screen prompts.
- If keys do nothing, click once inside the game frame so it has keyboard focus, then try again.
What it practises
- Reading fractions written as a/b and connecting them to "a parts out of b equal parts".
- Comparing fractions with different denominators.
- Planning a route before moving, because pushed blocks cannot always be pulled back.
A quick fraction warm-up before playing
- Draw a bar split into 4 equal parts and shade 3. Say it as "three quarters".
- Draw a second bar the same length split into 8 parts and shade until it matches. You need 6: three quarters equals six eighths.
- Use the same idea when a gate asks you to compare fractions: make the bottom numbers match first.
For parents and teachers: If a child guesses at gates to get through faster, pause and work one problem on paper together. The block puzzles are a reward for getting the maths right.
Fraction Galaxy FAQ
Is Fraction Galaxy a full game or a demo?
The Scratch instructions label it as a demo and say it includes 10 levels plus 2 extra levels.
What does the player do in the levels?
The source instructions describe moving and pushing blocks around to unlock doors and move forward.
Can I use paper for the fraction problems?
Yes. The project description explicitly suggests using paper if fractions are difficult.
Related lessons
Fraction Galaxy is a Scratch project by EpicOllieCoding (original project), shared under CC BY-SA 2.0 and packaged for the browser with TurboWarp Packager. NumBlocksGen wrote the teaching notes on this page. See credits.