Bundles of Ten - More or Less?

The students will be able to understand that ten ones can be grouped together to create a bundle of ten. They will understand the place value of tens and ones, and be able to tell which number is greater or less.

Duration

1-2 hours

Lesson Type

Traditional Lesson

Essential Question

What is the purpose of creating bundles of ten?
When wanting to know which number is greater or less, would you look to the tens place or ones place for help? Why?

Prepare
Lesson
Resources
Standards
Assessments

Grade(s):

Subject(s):

Math

Recommended Technology:

-Computer
Smart Board

Other Instructional Materials or Notes:

Problems planned in advance during whole group portion.
Chart Paper
Markers
Math Worksheet
Pencils

Lesson Progression

Students will begin the lesson on the carpet. As a warm-up, the teacher will count by 5s and 10s to 100 with students. Then, count by 2s starting at a random number.
The teacher will place the number 35 on the board and ask students which number is in the tens place, and which is in the ones place. How can we represent this number using a picture, but not drawing out 35 dots, circles, lines, etc.?
The teacher will go over how ten ones can be grouped together and considered a bundle of ten. Then, draw the remaining 5 ones. The teacher will do another example of this using another number.
The teacher will discuss with students the difference between greater than and less than. (Create an anchor chart of the definitions and with the information below.)
The teacher will ask students when wanting to look at which number is greater or less, would you look to the tens place or the ones place and why? Discuss this with students and add to the anchor chart.
Give students examples of drawings, have them count to figure out which number is greater or less. For example, draw a box of crayons to represent a bundle of ten, and then 4 crayons. Then, draw two boxes of crayons to represent two bundles of ten, and then 3 crayons. Walk through with students how to determine which one is less. Do another example that is similar, and determine which one is greater. (Add examples to the anchor chart.)
If students do not have any questions, send students off to complete the worksheet. Give students about 15-20 minutes to complete the worksheet. (Make sure that the anchor chart created with students in hanging in the room so that it is visible to all students to use as a tool.)
The teacher will wrap up the lesson by bringing students back together and asking students what they struggled with on the worksheet, and what other questions they might have.

Teacher Notes

Differentiation: Give students "unbundled" bunches of ten and have them compare. From there, ask students to create the bundles within the problems. Work in smaller number ranges from 1-20.

Extension: Integrate word problems. Introduce subtraction and regrouping by "unbundling" the tens.

Worksheet

View Resource

Standards

1.NR Numerical Reasoning
- 1.NR.1 Represent multi-digit numbers in a variety of ways to build place value understanding
  - 1.NR.1.2 Represent and explain that whole numbers 1 through 99 are organized into groups of tens and ones, and a digit has a different value depending on its placement
- 1.NR.3 Demonstrate the ability to compare quantities of objects and numerals representing quantities of objects
  - 1.NR.3.1 Compare representations of two numbers up to 100 using the phrases is greater than, is less than, or is equal to (the same value as)

Assessments

The students will be assessed through the questioning that takes place during the lesson. They will also be assessed through the worksheet that is given at the end of the lesson.