Button Place Value
Est. Class Sessions: 2
Students estimate and count a large collection of buttons. First they estimate the total number of buttons and brainstorm ways to group and count them. Then they work in small groups to sort and count the buttons and record their totals. The class works together to find the total number of buttons in the collection and compare group totals.
Content in this Lesson
- Representing and identifying quantities (e.g., greater than 100) using groups of counters, drawings, symbols, and words [E1].
- Using and applying place value concepts to make connections among representations of numbers [E2].
- Using efficient grouping strategies to count a collection of objects [E3].
- Using a benchmark to estimate a quantity of objects in a collection [E4].
- Using words and symbols (e.g., <, >, =) to show comparisons of
quantities [E5].
Materials for Students
| Daily Practice and Problems | Lesson | Homework | Assessment | ||
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Student Books |
Student Activity Book |
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Teacher Resources |
Teacher Guide - digital |
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Supplies for Students
1 index card
Supplies for Student Groups
10 small paper cups or a copy of the Ten Ten Frames Master (Teacher Guide) Page 115
2–3 resealable plastic bags
Materials for the Teacher
Display of Button Place Value (Student Activity Book) Page 87
Display of 200 Chart (Student Activity Book) Reference
class number line (0–130) or prepared Number Line Display Master from Lesson 1 (Teacher Guide)
Unit 2 Assessment Record
Math Facts Class Record
referent bags of buttons (20, 50, and 80) from Lesson 1
chart paper
collection of about 1000 buttons in clear jar or container
10 small paper cups
1 large resealable plastic bag
138 counters in a clear container
container of small identical objects, optional
Materials Preparation
Prepare Number Line Display. If you did not do so in Lesson 1, display a number line where it is easily accessible by both you and the students. Students should be able to see it and touch it with a pointer. Use the class number line (0–130) or prepare the Number Line Display Masters from Lesson 1. This version can be assembled, laminated, and displayed on the board or on a bulletin board. It is also small enough that it could be moved when it is not needed.
Prepare Referent Bags of Buttons. If you did not do so in Lesson 1, place 20, 50, and 80 buttons in small bags. Label and hang the bags above the class number line as shown in Figure 1. Students will use these as benchmarks to estimate the number of buttons.
Figure 1: Bags of buttons on the number line for reference
Prepare Optional Targeted Practice. Decide how many pairs of students will visit the learning center at a time to practice grouping and counting objects. Students will need access to a bin of up to 200 small, identical objects, a benchmark of 50 objects, a resealable bag, and ten small cups to count the objects. Each student who visits the learning center will also need a copy of the Scoop and Group Master.
Assessment in this Lesson
| ASSESSMENT | EXPECTATION ASSESSED |
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Button Place Value Check-In: Questions 1–2 Student Activity Book Page 87 |
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Groups of Hundreds, Tens, and Ones with Feedback Box Student Activity Book Pages 91–92 |
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DPP Item L Fact Families: Group C Teacher Guide - digital |
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DPP Item M Make Ten Teacher Guide - digital |
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