## Unit 1: Number and operation

**Duration**

11 Weeks

**Learner Profile Attributes**

- Knowledgeable.
- Thinkers

**Key Concept**

- Form

**Related Concept(s)**

- Representation Systems

**Global Context**

- Orientation in Space and Time

**Statement of Inquiry**

Different systems and forms of representation develop as civilisations evolve and humans interact.

**Summative Assessment Criteria**

- Criterion A
- Criterion B

**ATLs (Skills)**

- S – Listen actively to other perspectives and ideas
- SM – Plan short and long term assignments; meet deadlines

**Curriculum Standards**

- B1.1 Rational and Irrational Numbers represent and compare very large and very small numbers, including through the use of scientific notation, and describe various ways they are used in everyday life.
- B1.2 Rational and Irrational Numbers describe, compare, and order numbers in the real number system (rational and irrational numbers), separately and in combination, in various contexts.
- B1.3 Rational and Irrational Numbers estimate and calculate square roots, in various contexts.
- B1.4 Fractions, Decimals, and Percents use fractions, decimal numbers, and percents, including percents of more than 100% or less than 1%, interchangeably and flexibly to solve a variety of problems.
- B2.1 Properties and Relationships use the properties and order of operations, and the relationships between operations, to solve problems involving rational numbers, ratios, rates, and percents, including those requiring multiple steps or multiple operations.
- B2.2 Math Facts understand and recall commonly used square numbers and their square roots.
- B2.3 Mental Math use mental math strategies to multiply and divide whole numbers and decimal numbers up to thousandths by powers of ten, and explain the strategies used.
- B2.4 Addition and Subtraction add and subtract integers, using appropriate strategies, in various contexts.
- B2.5 Addition and Subtraction add and subtract fractions, using appropriate strategies, in various contexts.
- B2.6 Multiplication and Division multiply and divide fractions by fractions, as well as by whole numbers and mixed numbers, in various contexts.
- B2.7 Multiplication and Division multiply and divide integers, using appropriate strategies, in various contexts.
- B2.8 Multiplication and Division compare proportional situations and determine unknown values in proportional situations, and apply proportional reasoning to solve problems in various contexts.
- B2.9 Multiplication and Division multiply whole numbers by proper fractions, using appropriate tools and strategies
- B2.10 Multiplication and Division divide whole numbers by proper fractions, using appropriate tools and strategies
- B2.11 Multiplication and Division represent and solve problems involving the division of decimal numbers up to thousandths by whole numbers up to 10, using appropriate tools and strategies
- B2.12 Multiplication and Division solve problems involving ratios, including percents and rates, using appropriate tools and strategies