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# Teach Writing Fractionswith Diffission

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# Theory

## Fractions

Learn to play Diffission, a fraction puzzle game! Play the game's endless mode.

### Teacher Resources

• Theory: This lesson introduces your students to fractions and the fraction puzzle game Diffission.
• Play: Students play the game at their own pace.
• Share & Discuss: These questions focus on the playing experience and fractions.

## How Do Fractions Work?

• A fraction means part of a whole. The whole is defined as 1.
• The fraction $\frac{1}{3}$ means you have a single third. You need three thirds ($\frac{3}{3}$ ) to have a whole.   ### Teacher Resources

It can be a great idea to go over the images: what fraction does each pie diagram represent?

Use your own sources and the ones below to teach students about fractions and related concepts:

Image Source (top): Fraction Circles Shaded, Wikimedia Commons.

# Play

## Lesson Goal

Play Diffission! ## How to Play

To begin playing, click the screen. ## Gameplay Tips

• Slice fractions into smaller pieces until you have the right number of pieces (as displayed at the left bottom corner of the screen).
• In every level, you need to make equal pieces of each separate piece. They can have a different shape, but they must have the same number of squares.
• You must click on as many pieces as the numerator of the right number of pieces is to solve a level.
• If you have a problem with a level and need to restart, click on the reload icon at the top left corner.

# Share & Discuss

## Share & Discuss

• What did you think of Diffission?
• How far along did you get?
• Was there any puzzle that was really difficult for you? Which one?
• Did you have any trouble playing the game?

## Tasks after Playing

Which fraction is the image below?

Show Notes

$\frac{2}{4}$ (two quarters). Explain what a numerator is.

Show Notes

The numerator is the top number of a fraction. It simply means how many units of the fraction you have: $\frac{2}{5}$ (numerator: 2), $\frac{3}{4}$ (numerator: 3).

Explain what a denominator is.

Show Notes

The denominator is the bottom number of a fraction. It means how many units of a fraction are necessary to have a whole: $\frac{1}{4}$ (denominator: 4), $\frac{4}{9}$ (denominator: 9).

$\frac{1}{3}$, $\frac{2}{4}$, $\frac{4}{5}$.
Technically, nothing at all: they are both wholes (a 1). This is a trick question. If they would not be wholes, they would not be equal: $\frac{3}{4}$ is not the same as $\frac{3}{6}$ . Still, $\frac{2}{4}$ and $\frac{3}{6}$ are the same amount! More on fraction comparison in the next lesson.