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Fourth/Patterns

Repeating Patterns (AB and ABB)

Students identify and continue AB, AAB, ABB, and ABC repeating patterns using shapes, letters, and colours.
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Study Guide

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Quick Tip
Look at the repeating unit (the part that keeps repeating). Then write what comes next.
Teacher Resources
Teaching Notes

Have students clap/stomp patterns (clap, clap, stomp = AAB) before writing. Physical reinforcement helps identify the unit.

Vocabulary
Pattern unit: The part of the pattern that repeats.
AB pattern: A two-element repeating pattern (e.g., red, blue, red, blue).
ABB pattern: A three-element pattern where the second element repeats (e.g., circle, square, square).
Common Mistakes
  • Guessing instead of identifying the repeating unit
  • Not checking that the unit truly repeats from the start
Parent Tip

Make bead necklaces with two or three colours and ask your child to describe the pattern.

Learning Path
Skill Cluster

Algebra Readiness