# The Happy Caterpillar Problem

## Lesson details

### Key learning points

1. In this lesson, you will complete Happy Caterpillars - a visual game of repeated operations.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 3 Questions

Q1.
Each blue box is the product of the 3 numbers in that row or column. All the questions refer to this picture below. First, what is the value in box A?
16
9
Q2.
What is the value in box B?
1
3
4
Q3.
Which of the following could be a value for C?
112
189
83

## Exit quiz

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### 4 Questions

Q1.
Look at this caterpillar. When it gets to 8, what would the next step be?
- 1 to get to 7
+1 to get to 9
Correct answer: ÷ 2 to get to 4
x 2 to get to 16
Q2.
Thinking again about the caterpillar above, which starts at 15, what is its total length?
4
5
7
Q3.
How long is a caterpillar which starts at 27?
6
7