## Grade 1 Mathematics Topics and Sub-topics

**NUMBER SENSE**

1. Say the number sequence 0 to 100 by:

• 1s forward between any two given numbers

• 1s backward from 20 to 0

• 2s forward from 0 to 20

• 5s and 10s forward from 0 to 100.

2. Subitize (recognize at a glance) and name familiar arrangements of 1 to 10 objects or dots.

3. Demonstrate an understanding of counting by:

• indicating that the last number said identifies “how many”

• showing that any set has only one count

• using the counting-on strategy

• using parts or equal groups to count sets.

4. Represent and describe numbers to 20, concretely, pictorially and symbolically.

5. Compare sets containing up to 20 elements, using:

• Referents • one-to-one correspondence to solve problems.

6. Estimate quantities to 20 by using referents.

7. Demonstrate an understanding of conservation of number.

8. Identify the number, up to 20, that is:

• one more

• two more

• one less

• two less than a given number.

9. Demonstrate an understanding of addition of numbers with answers to 20 and their corresponding subtraction facts, concretely, pictorially and symbolically, by:

• using familiar mathematical language to describe additive and subtractive actions

• creating and solving problems in context that involve addition and subtraction

• modelling addition and subtraction, using a variety of concrete and visual representations, and recording the process symbolically.

10. Describe and use mental mathematics strategies (memorization not intended), such as:

• counting on and counting back

• making 10

• using doubles

• thinking addition for subtraction for basic addition facts and related subtraction facts to 18.

**PATTERNS AND RELATIONS**

Patterns • Use patterns to describe the world and to solve problems.

Variables and Equations • Represent algebraic expressions in multiple ways.

**SHAPE AND SPACE**

Measurement • Use direct and indirect measurement to solve problems.

3-D Objects and 2-D Shapes

• Describe the characteristics of 3-D objects and 2-D shapes, and analyze the relationships among them.

Transformations

• Describe and analyze position and motion of objects and shapes.

**STATISTICS AND PROBABILITY**

Data Analysis • Collect, display and analyze data to solve problems.

Chance and Uncertainty • Use experimental or theoretical probabilities to represent and solve problems involving uncertainty.

Number Sense

• Patterns

• Patterns

• Patterns

• Patterns

**Patterns and Relations**

• Patterns

• Variables and Equations

• Patterns

• Patterns

• Patterns

**Shape and Space**

• Measurement

• 3-D Objects and 2-D Shapes

• Transformations

• Patterns

• Patterns

**Statistics and Probability**

• Data Analysis

• Chance and Uncertainty

• Patterns

• Patterns

• Patterns