Students never seem to get enough practice doing word problems, so this lesson provides extra practice with addition and subtraction. The lesson introduces students to the strategies they can use when solving word problems specifically related to length. Problems are limited to addition and subtraction within 100 and include the use of pictures or drawings, and simple equations with a symbol representing the missing number. Students should already have prior knowledge of addition and subtraction before attempting this lesson. It is recommended students receive extra practice through the additional resources worksheets. Interactive websites are also included to help ease students’ fear of word problems.
- Ask students: What is your favorite thing to do: add or subtract? Why?
- Allow for responses and discussion. Ask: What helps you add and subtract more easily?
- Allow for responses and discussion. Ask students if they ever need to add or subtract the length of things.
- Allow for responses and discussion. Introduce Relating Addition and Subtraction to Length.
- Distribute Relating Addition/Subtraction to Length content pages. Read and review the information with the students. Demonstrate other examples with students during the content review. Save the final question for the lesson closing. Use the additional resources to enhance understanding.
- Distribute Activity page. Read and review the instructions.
- Distribute Practice page. Check and review the students’ responses. Allow students to demonstrate the solutions using the pictures or symbols they used.
- Distribute the Homework page. The next day, check and review the students’ responses. Allow students to share the two created word problems with another student to solve.
- In closing, ask students: How many inches would you like to add to or subtract from your height? Why?
- Allow for responses and discussion. Further ask students about other things they would like to add to or subtract from.
Common Core State Standards:
None for Grade 3
Class Sessions (45 minutes): at least 2 class sessions
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