Algebra - Toothpick patterns
Do Now: What is the smallest number of tooth picks to make 2 squares?
Problem:
Ripeka and Jan were sitting around playing with toothpicks when Ripeka started to make a pattern of squares.
How many toothpicks would she need to make a pattern like this that had 9 squares?
How many toothpicks do you need to make 3 squares? 4 squares?
Can you predict how many you will need for 5? Why do you think that?
Can you see a pattern in the number of toothpicks you need? Describe this?
In your own words, write down using their own words the rule for finding the number of toothpicks.
Source: NZ Maths