Read, Write, and Solve Math Problems
Using your iPad or computer and LCD projector, display Norman Rockwell Museum: Lemonade Stand 1955 for them and ask the students what kind of information do you see in this image?”
Here are some sample questions:
Who is in the picture?
What are they doing?
When did this take place? How do you know?
Where are they? What makes you think that?
I wonder how they made the lemonade. What do you think based on what you see? What else might we need to know about making lemonade (i.e., a recipe, details on mixing, a list of ingredients)?
I wonder why they decided to create a lemonade stand. They are selling lemonade for five cents a glass. Why do people sell things?
Say to students, “Let’s see if we can make a mathematics problem by looking at the Norman Rockwell image again. I wonder how much money they will make if they fill all of the glasses in the picture. How could I figure that out?” While using the evidence in this text (nine glasses at 5 cents a glass), model how students can figure out the problem by visually representing it using ShowMe Interactive Whiteboard.
First, draw the elements for the students’ problem on the screen as if you were using paper (i.e., draw the stand, glasses, and 5-cents sign).
Then turn on the recording, and have students describe the problem. For example, “I have nine glasses, and I want to sell lemonade for 5 cents a glass. How much money will I make? How will I solve this?”
Talk through the problem aloud while annotating it. For example, you can put a 5 cents symbol inside each glass, add all the glasses, and record your answer. Then ask students for another way to solve the problem, such as having x glasses and paying y money per glass. Lead them toward a mathematical equation and a solution. For example, say, “I sold my nine glasses of lemonade for 5 cents a glass. That means I sold 5-cent glasses nine times.” Prompt students to create the equation themselves.
3 Guided Practice
Have students work in small groups to create a simple lemonade problem using a different number of glasses and different prices. They should work out their problems on paper. When they are finished, they can go to a quiet space and record their answers on the iPad using ShowMe . If you wish to print out their solutions for later review or to hang on your board, explain to students how to take screen shots and email them to you.
4 Independent Practice
Students will be paired and will use Prezi to create a picture of their own lemonade stand with details in which to make a math problem. Students will need to have at least three different variations of math problems within their picture. Students can use the ShowMe interactive whiteboard to record the solutions to their problems.
5 Wrap Up
Students can work in pairs to play the game, The Lemonade Stand as groups finish their story problems and explanations.