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Grade 7 Maths: Numeric and geometric patterns poster

A one-page CAPS Grade 7 Maths poster on numeric and geometric patterns (Patterns and algebra), with the key ideas, key words and a tip to remember.

CAPS Grade 7MathsPatterns and algebraFree

School name for the header

Maths · Grade 7 · Patterns and algebra

Numeric and geometric patterns

1Number patterns

The numbers in a pattern are called terms. A rule tells you how to get from one term to the next.

Example

5, 9, 13, 17, ... (add 4)
5, 10, 20, 40, ... (multiply by 2)

Example

50, 44, 38, 32, ...
The rule is subtract 6.
Next terms: 26 and 20

Count the objects in each figure. Then look for the pattern in the numbers.

Example

Figures: 3, 5, 7 squares
Add 2 each time, so Figure 4 has 9.

A rule can use the term number n. The rule gives any term without listing all the terms before it.

Example

Rule: term = 5 × n + 1
n = 4: 5 × 4 + 1 = 21
n = 10: 5 × 10 + 1 = 51

Example

1, 2, 4, 7, 11, ...
Add 1, then 2, then 3, then 4

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