Lesson Plan:
Summertime Math Stories
March 25, 2015
March 25, 2015
Learning Objectives
Students will learn to locate and interpret important keywords when solving for a missing variable in a given world problem. They will learn to use the WIKED map as a solving strategy for word problems containing a missing variable.
Lesson
Introduction (5 minutes)
- Begin the lesson by asking students an essential question, to gauge their prior knowledge of word problem strategies. One example is: What word problem solving strategies do you know?
- Invite students to answer as a class, or have them turn to a class partner for think-pair-share.
- Discuss answers as a whole group.
Explicit Instruction/Teacher Modeling (15 minutes)
- Continue the ongoing discussion by informing students that today they will learn a new strategy for solving math stories with missing variables.
- As you explain this, write the following equation on the board: 23 – ___ = 18
- Place an index card inside the blank spot within your equation and write the word “variable” inside of it.
- Explain to the students that a variable is an alphabet letter used in math to represent a missing number. Take the index card off, and replace it with the variable y.
- Explain to the students that their job today will be to solve math stories that have a missing number, or a missing variable.
- Remind students that great problem solvers handle word problems like a detective who looks for clues to help them solve a mystery. One way to look for clues is to circle important keywords.
- Review the Key Words Anchor Chart and use the following procedure to monitor for understanding:
- Ask students to make a plus sign or a minus sign with their fingers for each of the keywords you say:
- Total (+)
- Altogether (+)
- Fewer (-)
- Continue this exercise until students feel confident with their understanding of the key terms and what they entail.
- Draw a representation of the WIKED map on the board and write the following math story above it: Cara and Susan have a hat collection totaling 52 hats. If there are 12 hats in Cara’s house, how many are there in Susan’s house?
- Use the WIKED map on the board to model how a student would use it to solve for the missing addend.
- Repeat this exercise 2 times.
Guided Practice/Interactive Modeling (10 minutes)
- Draw names from your name jar, or call students at random to participate in coming up to the board and solving for a missing variable using the WIKED map.
- Repeat the exercise with two more students or as time permits.
Independent Working Time (20 minutes)
- Provide students with a sheet-protected copy of the WIKED map, the Summer Time Math Stories handout, and dry erase markers.
- Have students use dry-erase markers to use, and re-use the WIKED map as a solving strategy.
- Once they feel comfortable with the map, ask students to generate their own word stories and exchange it with a partner for problem solving.
Extend
Differentiation
- Enrichment: Challenge above level students by having them generate their own word problem stories with missing variables and having them exchange these with peers from their same level for problem solving.
- At Level: Help approaching students by asking them to explain or justify their reasoning behind their answers by writing down a one to two sentence explanation for their answers inside the “Summer Time” handouts.
- Support: Provide students below level with additional support by providing them with highlighters to help them identify the keywords and a 120 counting chart to serve as a visual aid.
Technology Integration
- Teacher may project the WIKED Map or Summer Time Math Stories PDF on an interactive white board or projector.
Review
Assessment (5 minutes)
- Ask students to exchange their Summer Times Math Stories handout amongst each other for grading. Discuss answers as a whole group.
Review and Closing (5 minutes)
- Prompt students to turn to their nearest classmate and discuss two things they learned in this lesson. For example: I learned that keywords help me understand whether I should add, subtract, multiply, or divide. I learned what the word “variable” means.
Guided Lessons are a sequence of interactive digital games, worksheets, and other activities
that guide learners through different concepts and skills.
They keep track of your progress and help you study smarter, step by step.
Guided Lessons are digital games and exercises that keep track of your progress and help you study smarter, step by step.
This year, second graders will be introduced to the concept of multiplication using repeated addition. For example, they will learn that 5+5+5+5+5 is the same thing as saying 5x5. This guided lesson will use manipulatives to teach kids about repeated addition and give them plenty of opportunities to practice addition within 100. Download and print the accompanying worksheets for even more addition practice.
This year, second graders will be introduced to the concept of multiplication using repeated addition.
This lesson includes printable activities:
Download All (5)
Song: Repeated Addition Song
Game: Bubble Buster: Addition to 20
Game: Secret Agent Addition to 100
Game: Adding Worms with Cuz-Cuz
Game: Ski Race: Addition to 30
Game: Matching Pictures and Equations
