# Fractions: Addition with same denominator

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## Contents

5.

### Materials

• Red fraction circles in green frames (ten circles: 1 is undivided and the others are divided into 2 -10 equal parts.
• Label with fractions written on them: 1, 1/2, 1/2, 1/3
• Pencil and paper
• Skittles

### Preparation

This is an individual presentation.

### Presentation

1. Have the child bring out the two trays.
2. Write two fractions (with the same denominator): 2/6 + 3/6 =
3. Show the child that we first take out 1/6 two times (2/6).
4. Place these in front of the tray.
5. Then take out 1/6 three times (3/6).
6. Have the child count how many 1/6 there are. (5)
7. Show the child how to write the answer as shown: 2/6 + 3/6 = 5/6
8. Read the whole equation with the child.
9. Write another addition problem and have the child do it.
10. After a few equations, point out to the child that "we can only add fractions with the same denominator". For example: 2/4 + 1/4 = 3/4

The Directress.

### Purpose

• To help the child gain a sensorial impression of fraction.
• To introduce the concept and notation of fractions.
• To introduce sensorial exploration of equivalency among fractions.
• To introduce simple operations.