Lesson 9 The Birds

- Let’s solve multiplication problems.

Warm-up Notice and Wonder: For the Birds

What do you notice? What do you wonder?

photograph of two birds. One bird flying in the sky. One bird sitting on bird house.

Activity 1 Home is Where the Bird Lives

Different types of birds use different types of houses. The table gives you the recommended side lengths for birdhouses of various species.

Estimate a possible volume for each birdhouse. Be prepared to explain your reasoning.

type of bird	side lengths of floor	height
chickadee	4 in by 4 in	6 to 10 in
wood duck	10 in by 18 in	10 to 24 in
barn owl	10 in by 18 in	15 to 18 in
red-headed woodpecker	6 in by 6 in	12 to 15 in
bluebird	5 in by 5 in	6 to 12 in
swallow	6 in by 6 in	6 to 8 in

Activity 2 What is the Volume?

Use the criteria from the table to determine the recommended range of volumes for each type of birdhouse.

type of bird	side lengths of floor	height
chickadee	4 in by 4 in	6 to 10 in
wood duck	10 in by 18 in	10 to 24 in
barn owl	10 in by 18 in	15 to 18 in
red-headed woodpecker	6 in by 6 in	12 to 15 in
bluebird	5 in by 5 in	6 to 12 in
swallow	6 in by 6 in	6 to 8 in

Practice Problem

Problem 1

The recommended side lengths for a birdhouse for a yellow-bellied sapsucker are 13 cm by 13 cm for the floor and a height of 31 to 38 cm. What are the smallest and largest volumes for these birdhouses? Explain or show your reasoning.