Mathematics 3

Unit 1: Number

Organizing idea: quantity is measured with numbers that enable counting, labelling, comparing, and operating. Place value to 100 000, adding and subtracting within 1000, multiplication and division within 100, and first fractions of one whole.

• Reading and writing big numbers
• Comparing and ordering numbers

• Addition strategies
• Subtraction strategies

• Multiplication as equal groups
• Division as fair sharing

• Naming fractions
• Comparing fractions

Unit 2: Algebra

Organizing idea: equations express relationships between quantities. The equal sign as a balance, and finding an unknown that makes an equation true.

• The equal sign means balance
• Finding the missing number

Unit 3: Geometry

Organizing idea: shapes are defined and related by geometric attributes. Sorting shapes by their properties, and finding lines of symmetry.

• Sorting shapes by property
• Lines of symmetry

Unit 4: Measurement

Organizing idea: attributes such as length, area, volume, and angle are quantified by measurement. Measuring length with standard units and finding perimeter, plus a first look at angles.

• Measuring length
• Perimeter — the distance around

• An angle is an amount of turn
• Comparing angles

Unit 5: Patterns

Organizing idea: awareness of patterns supports problem solving in various situations. Finding the rule in a number sequence and using it to continue the pattern.

• Finding the pattern rule
• Extending a sequence

Unit 6: Time

Organizing idea: duration is described and quantified by time. Telling time on analog and digital clocks and describing the parts of the day.

• Reading an analog clock
• Analog and digital time

Unit 7: Statistics

Organizing idea: the science of collecting, analyzing, visualizing, and interpreting data can inform understanding and decision making. Reading data from graphs and explaining what the picture shows.

• Reading a graph
• Explaining the data