Idea 1of 21
Repeat, grow or shrink
How can you tell what kind of pattern you have?
Today you'll discover
- how to find the next three terms
- the three kinds of pattern
- what each kind looks like on a graph
Think first2, 4, 6, 8, 10 … what comes next?
What are the next three terms?
Decide first, then press Next. Look at the jump between each box and the next.
A row of numbered boxes. First 2, 4, 6, 8, 10 with three blank boxes after them; after the answer, curved jumps marked plus 2. Then 24, 21, 18, 15, 12 with jumps marked minus 3, then 1, 2, 3, 1, 2, 3 with a bracket under the part that repeats. Then the growing terms drawn as dots that climb to the right. The last step asks about 200, 189, 178, 167.
See the whole ideathe big idea and the key word, in one place
The big idea
A repeating pattern comes back round, a growing one goes up, and a shrinking one goes down.
Easy to get wrongA growing pattern does not need equal jumps. In 2, 4, 8, 16 the jumps are +2, +4, +8, but every term is still bigger, so it grows.
On a graphDrawn as dots, a growing pattern climbs as you read to the right. A shrinking pattern drops as you read to the right.
Key words
- repeating pattern
- a pattern where the same part comes back again and again: 1, 2, 3, 1, 2, 3
- growing pattern
- a pattern where every term is bigger than the one before: 2, 4, 6, 8
- shrinking pattern
- a pattern where every term is smaller than the one before: 15, 12, 9, 6
Ready to use it?
- Extend a pattern three more terms.
- Say whether a pattern repeats, grows or shrinks.