EA-AA Stage 5-6 Add/Sub

TIDY NUMBERS AND PLACE VALUE PARTITIONING

WALT to jump through a tidy number on a number line. WALT solve subtraction problems using place value to partition numbers.

Learn It	Practice It	NZ Curriculum	NZ Maths
Jumping the number line Video		Maths Stage 6 Pg 30-33 Pg 46-49
Jumping the number line PPT	Figure It Out Level 2 Book 1	Pg 8 - Hip Hup Hop Pg 11 - Weka Wobble Pg 16 - .What's my number
	Figure It Out Level 3 Book 3	Pg 8 - Slippery Slope

Compensation

WALT solve addition problems by first adding a tidy number and then subtracting a small number to compensate. WALT solve problems like 73-19 by first subtracting a tidy number then adding on a small number to get the answer

Learn It	Practice It	NZ Curriculum	NZ Maths
Problems like 73-19=? Video When one number is near 100 - add Video When one number is near 10o - subtract Video		Maths Stage 6 Pg 34-37 Pg 41-43 Pg 44-45
Problems like 73-19=? PPT When one number is near 100 PPT	Figure It Out Level 3 Book 2	Pg 1 - Tracking Toroa
	Figure It Out Level 3 Book 3	Pg 8 - Slippery Slope

EQUAL ADDITIONS

WALT solve problems by equal additions that turn one of the numbers into a tidy number

Learn It	Practice It	NZ Curriculum
Equal Additions PPT		Maths Stage 6 Pg 38-40

REVERSIBILITY

WALT to identify that problems like 34+_ =51 and 51-34=_   have the same answer

Learn It	Practice It	NZ Curriculum	NZ Maths
Don't subtract - add! Video Don't Subtract - add! PPT		Maths Stage 6 Pg 50-51

ADDITION AND SUBTRACTION PRACTICE

WALT solve addition and subtraction problems by choosing an appropriate strategy

Learn It	Practice It	NZ Curriculum
All stage 5-6 strategies above		Maths Stage 6 Pg 60-65

STANDARD WRITTEN FORM - ADDITION

WALT use a standard method of doing an addition problem on paper when the numbers are too difficult to add mentally.

Learn It	Practice It	NZ Curriculum
A standard form for addition PPT		Maths Stage 6 Pg 82-85

STANDARD WRITTEN FORM - SUBTRACTION

WALT use a standard method of doing a subtraction problem on paper when the numbers are too difficult to add mentally.

Learn It	Practice It	NZ Curriculum
Decomposition - a written form for subtraction Video		Maths Stage 6 Pg 86-89
Decomposition - a written form for subtraction PPT

MENTAL OR WRITTEN FOR ADDITION AND SUBTRACTION

WALT select wisely between using a mental method and a written method for addition and subtraction problems.

Learn It	Practice It	NZ Curriculum
All stage 5-6 strategies above		Maths Stage 6 Pg 90-91

ADDING AND SUBTRACTING BY CHOOSING AN EFFICIENT STRATEGY

WALT choose an efficient strategy to solve addition and subtraction problems.

Learn It	Practice It	NZ Curriculum
All stage 5-6 strategies above		Maths Stage 6 Pg 92-99