Term-to-Term Rules (Patterns)

Each picture in a pattern is called a term

• Term 1 is the first picture

• Term 2 is the next picture

• Term 3 comes after Term 2

A term-to-term rule tells you how to get from one term to the next

Sometimes the same number of shapes is added each time

• In this example, $2$ squares are added each time

• So the rule is to add $2$ squares

Sometimes the number of shapes is multiplied each time

• In this example, the number of squares doubles each time

• So the rule is to multiply by $2$

Use the same rule to find the next term

If the rule is to add 3$$ squares, add $$3 more squares to the last term

This gives the next picture in the pattern