# Lesson 1 One Piece of One Part

Let’s solve problems about unit fractions.

## Warm-up Notice and Wonder: Baked Macaroni and Cheese

What do you notice? What do you wonder?

## Activity 1 Of What?

At a family dinner, a pan of macaroni and cheese is

Draw a diagram to represent the situation.

Explain or show how you know your diagram represents the situation.

## Activity 2 The Same, but Different

Explain or show how each diagram represents

of of a pan of macaroni and cheese. Use the diagrams to show that

of is of the whole pan.

## Practice Problem

## Problem 1

Shade

of of the square. Explain where you see

of in your drawing.