Community-created

Slice It, Share It: The Secret Life of Fractions

by JoySchooler Learner
A hands-on lesson series where you work out what fractions really are by sharing pizzas, cookies and ribbons. Then you put them on the number line, find their hidden twins, and compare them like a pro.
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Course cover

What Is a Fraction, Really?

Lesson 1
The Pizza Fight image

The Pizza Fight

Two friends each take 'a half' of the same pizza, yet one of them is furious. Can a piece be called a half just because there are two pieces?
Start
Lesson 2
Would You Rather Have a Third or a Fifth? image

Would You Rather Have a Third or a Fifth?

Your favorite cake is being shared. Do you want 13\frac{1}{3} of it or 15\frac{1}{5}? Pick fast, then prove it.
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Lesson 3
Counting Slices image

Counting Slices

What do the top and bottom numbers each do? And what is going on with something like 54\frac{5}{4}?
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Lesson 4
Every Fraction Has an Address image

Every Fraction Has an Address

Whole numbers live on a number line. Can a fraction move in there too? Where would 34\frac{3}{4} live?
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Twins, Shortcuts and Showdowns

Lesson 5
Two Names, One Spot image

Two Names, One Spot

Can two fractions that look totally different ever be the same amount? Time to investigate.
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Lesson 6
The Trick That Sometimes Breaks image

The Trick That Sometimes Breaks

A classmate has a quick way to make new fractions. It works once, then fails. Can you find the fix?
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Lesson 7
The Fraction With Too-Big Numbers image

The Fraction With Too-Big Numbers

Someone writes 2436\frac{24}{36} of a chocolate bar. Is there a neater way to say exactly the same thing?
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Lesson 8
Showdown: \(\frac{3}{8}\) or \(\frac{3}{5}\)? image

Showdown: \(\frac{3}{8}\) or \(\frac{3}{5}\)?

Bigger numbers usually mean bigger amounts. Do fractions follow that rule? Take on tricky fraction duels.
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Lesson 9
3 Cookies, 4 Friends image

3 Cookies, 4 Friends

There are not enough cookies for one each. How much does every friend get, and what does that tell you about fractions?
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Review and assessment

Lesson 10

Test: Slice It, Share It: The Secret Life of Fractions

Review the course ideas by applying them to new situations, with kind feedback after every answer.
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