 Grade 4 Font:

# Addition and Subtraction

Strand: Number
Outcome: 3

## Curriculum Focus

This sample targets the following changes in the curriculum:

• The General Outcome focuses on number sense, whereas the previous mathematics curriculum specified applying arithmetic operations on whole numbers and illustrating their use in creating and solving problems.
• The Specific Outcome focuses on using personal strategies, whereas the previous mathematics curriculum specified connecting manipulatives, diagrams and symbols.
• The Specific Outcome includes estimating sums and differences, whereas the previous mathematics curriculum did not include estimating.

Addition and Subtraction addresses the following outcomes from the Program of Studies:

Strand: Number
Specific Outcomes:
 3 Demonstrate an understanding of addition of numbers with answers to 10 000 and their corresponding subtractions (limited to 3‑ and 4-digit numerals) by: using personal strategies for adding and subtracting estimating sums and differences solving problems involving addition and subtraction.

## What is a Planning Guide?

Planning Guides are a tool for teachers to use in designing instruction and assessment that focuses on developing and deepening students' understanding of mathematical concepts. This tool is based on the process outlined in Understanding by Design, by Grant Wiggins and Jay McTighe.

The following steps will help you through the Planning Guide:

See Bibliography for reference information. 