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Lesson 1

Deriving addition and subtraction facts

Lesson 2

Deriving addition and subtraction facts by using given calculations

Lesson 3

Choosing appropriate addition strategies

Lesson 4

Choosing appropriate subtraction strategies

Lesson 5

Applying and consolidating: Related number facts and appropriate strategies

Lesson 6

Adding using the column method

Lesson 7

Adding using the column method, when multiple columns require regrouping

Lesson 8

Subtracting using the column method

Lesson 9

Subtracting using the column method, when multiple columns require regrouping

Lesson 10

Subtracting from multiples of 1000

Lesson 11

Applying and consolidating: Column method for addition and subtraction

Lesson 12

Representing one-step word problems

Lesson 13

Representing comparison word problems

Lesson 14

Solving two-step word problems

Lesson 15

Applying and consolidating: Word problems and bar models