Lesson 2

Collect Pet Data

Est. Class Sessions: 2–3

Developing the Lesson

Part 2: Collect the Data

Direct students to the Pet Data Table on the Pet Lab pages in the Student Activity Book and to the Pet Data Table you prepared and have displayed.

  • What information are we collecting? (The kinds of pets.)
  • What kinds of pets do you have? (no pets, cat, dog, bird, etc.)

As students name the kinds of pets, record them in the first column of the data table. Be sure to include the option of "No Pets." Ask students to write this information in the first column of their data table as well.

  • What should we title this column of the data table? (Type or Kind of Pet)

Ask students to add this title to this column of the data table. Include the variable "T" or "K."

Next distribute a 3-inch square self-adhesive note or similarly-sized piece of construction paper to each student. Ask each student to draw a picture of his or her pet on a note. If some students have more than one kind of pet, they will need a note for each kind. Note that the vertical axis on the graph will read Number of Students, not Number of Pets. Therefore, a student with two cats is counted as one student with pet cats, not as two cats. On the other hand, a student who has a bird, two cats, and a turtle will require three notes and will be counted three times: as a student with a bird, a student with cats, and a student with a turtle.

Poll students by asking what type of pet they have. Make tallies on the data table you have displayed. Allow students to help one another translate the tallies into numbers and record the data on their own data tables. See Figure 2.

  • What is a good title for the data in this column? (Number of Students)

Show students how to add this title to their table. Include the variable "N."

The table and graph in Figure 2 display seven different pet options. If the list exceeds the number of rows on the table or graph because students have unusual pets, you may wish to use "other" as a category for unusual pets. Also, be certain that students who do not have pets participate by including "no pet" as an option.

A completed table and bar graph of pet data
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