## Fractions

Learning Intention:

To understand fractions of a collection.

Success Criteria:

I can name fractional parts and the amount in each part.

1. Make a unifix rod of 12 cubes this will be called your 12 rod!

2. You will be investigating making halves, thirds, quarters and sixths using the 12 rod.

3. Break your 12 rod into 2 rods of equal length- Draw this in your book.

4. Break your 12 rod into 3 equal shares- Draw this in your book.

How many cubes in two thirds?

How many cubes in two quarters and five-sixths?

To understand fractions of a collection.

Success Criteria:

I can name fractional parts and the amount in each part.

**Activity :***12 Rods*1. Make a unifix rod of 12 cubes this will be called your 12 rod!

2. You will be investigating making halves, thirds, quarters and sixths using the 12 rod.

__Record answers to the following questions in your numeracy book.__3. Break your 12 rod into 2 rods of equal length- Draw this in your book.

*What is each part called?*

How many halves make the 12 rod?

How many cubes in each half?

What is one half of 12?How many halves make the 12 rod?

How many cubes in each half?

What is one half of 12?

4. Break your 12 rod into 3 equal shares- Draw this in your book.

*What is each part called?*

How many thirds make the 12 rod?

How many cubes in each thirds?

What is one third of 12?

5.Break your 12 rod into 6 equal shares- Draw this in your book.How many thirds make the 12 rod?

How many cubes in each thirds?

What is one third of 12?

5.

*What is each part called?*

How many sixths make the 12 rod?

How many cubes in each sixth ?

What is one sixth of 12?

6.Break your 12 rod into 4 equal shares-Draw this in your book.How many sixths make the 12 rod?

How many cubes in each sixth ?

What is one sixth of 12?

6.

*What is each part called?*

How many quarters make the 12 rod?

How many cubes in each quarter?

What is one quarter of 12?

Extension:How many quarters make the 12 rod?

How many cubes in each quarter?

What is one quarter of 12?

Extension:

How many cubes in two thirds?

How many cubes in two quarters and five-sixths?

## Problem solving Fractions

Learning Intention:

To solve a worded problems about fractions.

Success Criteria:

I can solve the problem by :

· drawing a number line

· drawing a picture

· writing an explanation

Please answer the following questions :

- It’s Eleni’s dinnertime. Her plate is divided into three sections she puts broccoli on one of the sections. What fraction of Eleni’s plate has broccoli on it? What is an equivalent fraction?

- Ashton was painting her bedroom walls. She painted ¼ of her bedroom wall blue before stopping for lunch. What fraction of the wall does she have left to paint?

- Morgan and Eleni ordered a pizza. Morgan eats ½ of the pizza and Eleni eats 1/4. Who eats more of the pizza?

- Alanna bakes two cakes to share with grade 3. One cake is cut into 12 equal pieces and the other is cut into 6 equal pieces. Jasmine eats 1/12 of one cake whilst Alanna eats 1/6 of the other cake. Who ate more cake?

- Mia T had a whole pie. She cut it into 8 pieces. She ate one piece and gave Sidney and Phoebe 2 pieces each . What is the fraction of the pie that is left?

- A recipe to make 6 chocolate chip muffins asks for 1 ½ cups of flour. How many cups of flour would you need to make 12 muffins?

- Miss Caminiti made a coffee. She drank 1/2 of it before school started and ½ at recess. During lunch she made herself a new coffee and drank ½ of it.

- CHALLENGE : Grade 3 is having a party. You have made 4 cakes all of which need icing. The recipe says that icing for one cake needs ¾ cup of sugar. You need to make enough icing for 4 cakes. How much sugar do you need?

****

__OPEN PROBLEM______

You are having a party at your house and you have made a delicious birthday cake. Lexie asks for a big piece of the cake. Sophia asks for a piece of cake that is smaller than lexie’s piece.

What fractions of the cake can Lexie and Sophia get?

Solve the problem by :

· drawing a number line

· drawing a picture

· writing an explanation

Extension : Please don't use a numerator of 1!