Learning Journey

Friday, 9 December 2016

Strategy Stage 6 Advanced Additive part 3



Strategy Stage 6 Advanced Additive
FRACTIONS: using multiplication and division strategies
This is what I can do
and
what I can’t do yet.    Lukas   Term 4 2106
Find fractions of whole numbers
Example:
¾ of 24 = ?
If all of this equals 24, how much will ¾ of it be worth?
6+6+6 = 18

6
6
6
6

Example:
I’m thinking of a mystery number.
21 is ¾ of it.
What is the mystery number?


7
14
21
28

Solve this problem.
If all of this equals 20, how much will ¾ of it be worth?









Solve this problem.
I’m thinking of a mystery number.
18 is ⅔ of it.
What is the mystery number?







Solve simple equivalent ratio and rate problems
2 : 3 so ? : 6

What have I done to the 3 to change it into 6?
I have doubled it. Therefore, I need to double the 2.
Double 2 is 4 so…

2:3  =  4:6
Use the same thinking to solve this problem

.5 : 10  =  15 :  ________?
Compare fraction sizes with whole numbers (renaming)
37/7 = 5 2/7
Thirty seven sevenths is the same amount of pizza as
5 whole pizzas and 2/7 of a pizza.
17/4  =
My reflective comment/goal setting:
This page just shows the kind of problems you could or couldn’t solve as you did your working out on paper. Obviously, this is a weak area for you. You need to go back to Maths Buddy and find the lessons which will help you with these problems. Or, go to Youtube and do a search for: Solve fraction and ratio problems using multiplicative thinking, and see what lessons you find. If you can’t find anything using that search term, try using the pink highlighted words as search terms.Mrs B😉








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