Thursday, September 9, 2021

Addition and Subtraction Strategies Rubric Term 3 2021

 Addition and Subtraction Strategies  Rubric Term 3 2021   Name: 


Criteria

Level 2 (5ii)

Early Level 3

Level 3

Level 4

Addition and Subtraction strategies

Simple strategies to add and subtract smaller numbers.

Knowing a range of strategies e.g. use of an  algorithm, or partitioning.

Applying a range of appropriate strategies for different problems. Number lines, compensation, 

Have a range of strategies that can be used for decimal numbers and fractions


My  goals: Is to get to level 5


Goal

Success Criteria (This is what it will look like when I get there)

I need to be able to break numbers up to make it easier to subtract. 


To achieve this goal I can break up single digit numbers to add or subtract. Eg 47 + 8 means 47 (+ 3 + 5) = 47 + 3 = 50 + 5 = 55 or 

in 43 - 6 the 6 would be partitioned into a 3 and a 3. 43 - 3 = 40 - 3 = 37.   

I need a range of strategies to be able to use to add and subtract when solving different problems

To achieve this goal I can use different strategies. I can use numberlines to count on and count on back, rounding skills to compensate as well as an algorithm. I must be able to partition well so I can bridge through tidy numbers. 


I need to be able to select the strategies to use to add and subtract when solving different problems


To achieve this goal I will have a range of different strategies I can use. I can look at numbers in a maths problem and say this strategy will be best here because ………  I need to be able to justify and explain. I begin to check my answers.

I need to be able to extend my use of addition and subtraction strategies to decimal numbers, fractions, and percentages. 

To achieve this goal I will be able to solve math problems that involve decimal numbers, fractions. I will use self checks and inverse to help my accuracy 


 Mnbn n 

Kuyfhgf.= where I’m at



Goal Setting in Addition and Subtraction


My goal in addition and subtraction is:

I need to be able to extend my use of addition and subtraction strategies to decimal numbers, fractions, and percentages. 








My reflection

I have gotten better at understanding counting on strategies because I already know enough counting back strategies and I have a lot more knowledge about adding fractions too.