## Description

- Overview:
- The purpose of this task is to study some patterns in a small addition table. Each pattern identified persists for a larger table and if more time is available for this activity students should be encouraged to explore these patterns in larger tables.

- Level:
- Upper Primary
- Grades:
- Grade 3
- Material Type:
- Activity/Lab
- Author:
- Illustrative Mathematics
- Provider:
- Illustrative Mathematics
- Provider Set:
- Illustrative Mathematics
- Date Added:
- 08/15/2012

- License:
- Creative Commons Attribution 4.0
- Language:
- English
- Media Format:
- Downloadable docs, Text/HTML

What is it: This is a worksheet on finding and explaining addition patterns on an addition table.

Target/Topic: Addition Patterns, Even/Odd

Standard: 3.OA.9 dentify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations. For example, observe that 4 times a number is always even, and explain why 4 times a number can be decomposed into two equal addends.

Strength:

-clear and precise explanation of the arithmetic patterns

Limitation:

-The standard includes multiplication patterns but this only deals with addition patterns on a very small scale.