Problem Solving Lesson Topic Index | Grade 4 Math | Elementary Test Prep | StudyZone

Problem Solving Using Charts and Diagrams
 Example 1 How many more people own retrievers than setters?

 You can use the information from a bar graph to solve a problem. UNDERSTAND What do you need to find? You need to find the difference between the number of people who own retrievers and number of people who own setters. Plan How can you solve the problem? Find the two bars you're comparing. Read the number scale for each bar. Subtract to compare the numbers. Solve The bar for retriever owners shows 30. The bar for setter owners shows 15.  30 - 15 = 15    So, 15 more people own setters.

Example 2

Nicole likes to skate for exercise. She skated 2 miles the first week. Each week, she skated 1 more mile than the week before. She did this for 5 weeks.

What was the total number of miles Nicole skated?

You can use the information from a table to solve a problem.

 Week Number Nicole Traveled In Week 1 2 miles 2 3 miles 3 4 miles 4 5 miles 5 6 miles
UNDERSTAND
What do you need to find? You need to find the total number of miles Nicole traveled.
Plan
How can you solve the problem? Use a table to organize the information. Then add the number of miles she skated each week to find how far she skated in 5 weeks.
Solve
2 + 3 + 4 + 5 + 6 = 20
She skated 20 miles in all.

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