Multiplication and Division 29, Patterns and
... In pairs, children create square numbers starting with 1. They add counters to make 2 rows of 2 and record 4 as a rectangular number. They add counters to make 3 rows of 3 and record 9 as a rectangular number. They add counters to make 4 rows of 4 and record 16 as a rectangular number. ...
... In pairs, children create square numbers starting with 1. They add counters to make 2 rows of 2 and record 4 as a rectangular number. They add counters to make 3 rows of 3 and record 9 as a rectangular number. They add counters to make 4 rows of 4 and record 16 as a rectangular number. ...
