Lesson: Fair Share?

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Lesson Objective

Students will identify key words related to division; examples and non-examples of fair sharing.

Lesson Plan

 

Do Now

  • Distrbute Do Now activity sheet or have students respond to the question what does "fair share" mean in their math journals.

Opening

  1. Discuss the Do Now and allow students to share what they think it means.
  2. Tell students that they are going to read a book called The Lion's Share. Tell students to listen carefully for examples or non-examples of fair sharing.

Direct Instruction

  • Read aloud The Lion's Share by Matthew McElligott.
  • In the book The Lion's Share, what happened each time the Lion's cake was split in two (halved)

    Who got the largest share?

    Who received the smallest piece?

    Was this an example of fair sharing? Why or why not?

    How many animals wanted a piece of cake?

Guided  Practice

  • In the book The Lion's Share, what happened each time the Lion's cake was split in two (halved)

    Who got the largest share?

    Who received the smallest piece?

    Was this an example of fair sharing? Why or why not?

    How many animals wanted a piece of cake?

Independent Practice

  1. Distribute student copies of the What Was the Lion's Share? worksheet. Ask students to view the chart as the "cake" and to write letters (E for elephant) in boxes to show each animal's "share" of the cake. Do first animal together (elephant) and refer to example chart for placement as needed. Reread portions of book for each animal as needed. It may be helpful to write down the animals in order of when they cut the cake (i.e. elephant, hippo, gorilla, tortoise, warthog, macaw, frog, beetle, ant...)

  2. Next, charts should be checked for accuracy. You can even count portions/cells of the chart to verify (elephant should have 256, hippo = 128, gorilla = 64 and so on). If students have different arrangements, discuss why some charts may look different and can still be correct.
  3. Once student charts have correct proportions, ask students to assign a color for each animal and lightly shade in that animal's portion. This will make the chart a more visual tool. Students should shade in the key at top to correspond with the animal's color (e.g. blue for elephant) and/or shade in the animal's picture at top of page. Teacher can refer to example chart with colors as needed.
  4. Check student charts for accuracy and display charts that look different, but are still correct.
  5. Once student charts are finished, ask students to look at the chart and find the star in the lower right corner. Ask: Which animal would have received the last tiny square with the P? (Answer: lion) Did the lion get this share? (Answer: No) Why? (Answer: When the ant tried to cut it, it was too small and fell apart.) 
  6. Distribute the Filling in the Blanks for Division worksheet. These half-page notes can be placed in student's math journal.
  7. Allow students  to  fill in the notes as you discuss division definition, keywords and symbols.

Closing

  1. Use colored chart and division notes to discuss why this story was NOT an example of fair shares. (Animals did not cut the original cake into 10 equal pieces. Instead, each time one of the animals cut the cake, they started with a different "whole" and the pieces got smaller and smaller.
  2. Ask and discuss the question: What method could be used so that everyone received the same size piece?. Suggestion: Use picture of a sheet cake and have students fold into 10 equal portions. Again, this is would be a good introduction to fractions.

Optional: Discuss end of story and how the animals wanted to apologize for their rudeness by making the lion cake(s). How is the number of cakes they volunteered to make illustrated in the students' charts? (ant made 1 cake, beetle = 2, frog = 4, macaw = 8, and so on)

Lesson Resources

Fair Share Student Activity Sheet 1
4991
Introduction to Division Activity Sheet
4991
DN Fair Share  
994

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