1. Problem Solving: Writing to Explain
Lesson 14-5
CCSS 4.MD.1
Literature Link: If You Hopped Like A Frog by David M. Schwartz

2. Warm Up
Sam makes 8 salads. Each salad has 7 tomatoes and 9 pieces of cucumber. How many tomatoes did Sam use? How many pieces of cucumber did he use? How many tomatoes and cucumbers did Sam use in all?

3. What makes an explanation good?
Think and Write
What makes an explanation good?

4. Steps to Solving
Read the problem carefully and identify what you are being asked to do.
Solve the problem. Show all work.
Write a step-by-step explanation. First…Next… Last…

5. Problem 1
Carmen stood next to a tree that is 75 feet taller than she is. Carmen is 60 inches tall. How tall is Carmen’s tree? Jesse stood next to a tree that is 876 inches taller than he is. Jesse is 4 feet tall. How tall is Jesse’s tree?

6. Problem 2
Mrs. Harple’s class plants trees. Phil’s tree is 72 in. tall. Robert’s tree is 5 ft. 6 in. tall. Whose tree is taller? Explain how to solve.

7. Problem 3
Rosie went fishing with her friend Kayla. Rosie caught a fish that was 14 lb. 7 oz. Kayla’s fish weighed 185 oz. Whose fish weighed more? How much more did the bigger fish weigh?

8. Problem 4
Fiona and Aiden are making two kinds of fruit punch for their class party. Fiona’s punch bowl holds 8 gallons. Aiden’s punch bowl holds 28 quarts. Whose punch bowl holds more? How much more does it hold?