Basic 4Mathematics19 min

Pattern Table Repair

Checking the chair-count table for classroom group tables.

Describe a pattern before extending it.

Each table needs 4 chairs. One row in the class chart is wrong. Spot the error and repair the table.

Pattern Table Repair illustration

Checking the chair-count table for classroom group tables.

A table pattern says 1 table has 4 chairs, 2 tables have 8 chairs, and 4 tables have 18 chairs.

  1. Describe the rule first: multiply the number of tables by 4.
  2. For 4 tables, 4 x 4 is 16, so 18 is the error and should be replaced with 16.