Fractions!!!

Find your partner!

Learning Target: I can add fractions using concrete, pictorial, and symbolic representations.

Say What????

ConcretePictorial

Symbolic

Terminology

Numerator

DenominatorMixed Number

Improper Fraction

Which of the following is an improper fraction? Why?

How do I write mixed fractions as improper fractions?

How many thirds are in two whole?...And then I have one more..

How do I change Improper fractions to mixed?

What are equivalent fractions?

If I brought a Pizza to school, and I gave Mrs. Kendall 1/2 and I for myself I kept 2/4, who got more of the pizza?

How many ways can you write 1/2?

To add fractions, we need to be adding the same kinds of things--that is, we need a common denominator.

We use equivalent fractions to create common denominators

Add:

Always leave your answer in "simplest terms" or "reduced".

Subtract:

Which of these has "like" denominators?

Make Pictorial representations to model these addition expressions (on the following pages)

What's the smallest number I can think of that 2 and 4 both divide into?

What's the smallest number I can think of that 3 and 2 both divide into?

Tricks to finding a common denominator

We are actually looking for the "least common multiple"

Try skip counting!

What was the common denominator? How did you know?

What was the common denominator? How did you know?

Fraction Pieces

Each pair of students should receive one package of fraction pieces

Arrange your pieces

On the chart, record what fraction of a whole each piece represents.

Write as many ways as you can

Which of these are in "lowest terms"?

Write 1 as many ways as you can! Draw some pictures to accompany your symbols!

Can you show us this with your fraction strips?

With your fraction pieces, find three ways to show "One half"

Which of the three ways is "lowest terms"? How do you know?

Can we add fractions with fraction strips?(You may have to use more than one set)

See how many of these you can model. Can you give an answer?

Try subtracting:

**Challenge!

Can you add the following?

1.

2.

3.

4.

How are we doing????

Write down one thing you learned today, or something you feel you understand better than you did before.

What helped you learn today?

What is your "muddiest" point? Something that you still struggle with?

Adding Fractions