Lesson 2

Collect Pet Data

Est. Class Sessions: 2–3
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Mathematical Standards

1.OA.A
Represent and solve problems involving addition and subtraction. (1.OA.A.1)
1.MD.C
Represent and interpret data. (1.MD.C.4)
1.NBT.C
Use place value understanding and properties of operations to add and subtract. (1.NBT.C.4)

Standards for Mathematical Practice

MP2.
Reason quantitatively.
MP3.
Construct viable arguments and critique the reasoning of others.
MP4.
Model with mathematics.
MP5.
Use appropriate tools strategically.

In this lab, students contribute to a class set of data. Students collect, organize, and graph the data, detailing the kinds of pets students have. The TIMS Laboratory Method provides the structure for this lesson.

Content in this Lesson

  • Representing repeated addition and repeated subtraction using counters and drawings [E2].
  • Solving repeated addition and repeated subtraction problems using drawings and invented strategies [E3].
  • Reading a table or bar graph to make predictions and solve problems about a data set [E7].
  • Using patterns in data to make predictions [E7].
X

Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Books
Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Students

20 connecting cubes
desk number line (0–40)
3-inch square self-adhesive note or piece of construction paper and tape, 1–3 per student

Materials for the Teacher

Unit 14 Assessment Record
Math Facts Class Record
chart paper

Materials Preparation

Prepare Class Data Table and Graph. Prepare a large data table and a large graph on chart paper. The graph should be large enough to accommodate 3-inch square self-adhesive notes. See Figure 1 for a sample data table and graph.



Figure 1: A sample data table and graph

Assessment in this Lesson

Assessment Expectation Assessed
Room 222's Pets Graph
Student Activity Book
Pages 455–456
E7.
Read a table or bar graph to make predictions and solve problems about a data set.
DPP Item D
Addition Facts 1
Teacher Guide - digital
E9.
Use math fact strategies to add (e.g., direct modeling, counting strategies, reasoning from known facts) for the facts in Group C
(2 + 9, 3 + 8, 4 + 7, 5 + 6).
DPP Item F
Add and Subtract
Teacher Guide - digital
E10.
Determine the unknown number in an addition or subtraction sentence relating three whole numbers for the facts in Group C.

Vocabulary in this Lesson