The Potion Pantry

Rows of coloured bottles line the shelves, each recipe needing ingredients in exactly the right balance.

A potion recipe only works when the ingredients stay in the same ratio. Count, compare, and simplify to keep the mixture stable.

Ratios are comparisons. Once the comparison is clear, the numbers start behaving beautifully.

Core Concept

Ratios compare parts

Write the comparison in order

If there are 3 blue counters and 2 red counters, the ratio of blue to red is 3:2. Order matters: red to blue would be 2:3.

Simplify by dividing both parts

A ratio can be simplified when both parts share a common factor. 6:9 can be divided by 3 on both sides, giving 2:3. The comparison stays the same, just written more neatly.

Guided Practice

Write and simplify ratios

Work through each question carefully. Take your time.

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Independent Practice

Ratio flashcards

Now it's your turn. Apply what you've learned on your own.

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Recap

Ratio recap

A ratio compares quantities in order. To simplify, divide each part by the same common factor.

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