Unit 2 Day 1: What a Fraction Represents

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Unit 2: Understanding Fractions

Day 1: What a Fraction Represents

Today's Objectives

Vocabulary Focus

Fraction: A number that shows a part of a whole.

Numerator: The top number. It tells how many parts you have.

Denominator: The bottom number. It tells the total parts in the whole.

The Big Idea: Parts of a Whole

Think of a pizza cut into equal slices.

\(\frac{3}{8}\)

Numerator (3): How many slices you have.

Denominator (8): The total number of slices.

I Do: Area Model

In the fraction \(\frac{3}{8}\), we have 3 shaded parts out of a total of 8 equal parts.

I Do: Set Model

If a class has 10 girls out of 25 total students...

The fraction of girls is:

\(\frac{10}{25}\)

We Do: Let's Try Together

Let's analyze the fraction \(\frac{2}{5}\).

The numerator (parts we have) is ___?

The denominator (total parts) is ___?

We Do: Let's Try Together

You have a bag with 6 marbles. 4 of them are red. What is the fraction of red marbles?

The numerator (red marbles) is ___?

The denominator (total marbles) is ___?

You Do: Practice Time!

Work on the first two problems on your notes sheet.

Problem 1:

A chocolate bar is broken into 12 equal squares. You eat 7 of them. What fraction did you eat?

Problem 2:

What fraction of the shape is shaded?

Independent Practice

Try these problems on your own.

Green Level

What is the denominator in the fraction \(\frac{5}{6}\)?

Yellow Level

There are 7 days in a week. What fraction of the week is one weekend (Saturday and Sunday)?

Red Level

A pizza is cut into 8 slices. 3 slices are eaten. What fraction of the pizza is left?

Exit Ticket

On a piece of paper, write the fraction for the unshaded part of the shape.

Unit 2: Understanding Fractions

Day 1: What a Fraction Represents

Today's Objectives

Vocabulary Focus

Fraction: A number that shows a of a whole.

Numerator: The number. It tells how many parts you have.

Denominator: The number. It tells the total parts in the whole.

I Do: Area Model

In the fraction \(\frac{3}{8}\), we have shaded parts out of a total of equal parts.

I Do: Set Model

If a class has 10 girls out of 25 total students, the fraction of girls is .

We Do: Let's Try Together

Problem 1: Let's analyze the fraction \(\frac{2}{5}\).

The numerator (parts we have) is ?

The denominator (total parts) is ?

Problem 2: You have a bag with 6 marbles. 4 of them are red. What is the fraction of red marbles?

The numerator (red marbles) is ?

The denominator (total marbles) is ?

You Do: Practice Time!

Problem 1: A chocolate bar is broken into 12 equal squares. You eat 7 of them. What fraction did you eat?

Problem 2: What fraction of the shape is shaded?

Independent Practice

Green: What is the denominator in the fraction \(\frac{5}{6}\)?

Yellow: There are 7 days in a week. What fraction of the week is one weekend (Saturday and Sunday)?

Red: A pizza is cut into 8 slices. 3 slices are eaten. What fraction of the pizza is left?

Exit Ticket

Write the fraction for the unshaded part of the shape.