Beacon Lesson Plan Library

Dot Two Dot

Linda Joyner

Description

Students compare two numbers at a given time. The students then make an educated decision as to which number is larger, which number is smaller, or if the numbers are equal by putting the correct number of dots by each number.

Objectives

The student compares and orders whole numbers to 100 or more using concrete materials, drawings, number lines, and symbols (less than, =, greater than).

Materials

Each student needs:
-10 Two-inch squares with random numbers 1-100 written on them
-10 One-inch circles cut from colorful paper
-1 Sheet of 12 x 18 construction paper
-2 Popsicle sticks
-1 Ziploc bag

Other Supplies:
-Poster, chart paper or chalkboard (for teacher to show examples on)
-Chalk or a marker

Preparations

1. Cut the two-inch squares and write numbers on them ahead of time (enough for each student to have 10 random numbers).
2. Cut the one-inch circles (enough for each student to have 10 colorful dots).
3. Count out the necessary items for each child and put them in individual ziploc bags: 10 random numbers, 10 colored dots, and 2 popsicle sticks.

Procedures

This lesson teaches the student to compare numbers using symbols only.

1. Gather students around in a semicircle at the front of the classroom or in a small group.

2. Tell the students that they will learn 3 new mathematical terms. (Write these on the board with the corresponding signs.)
greater than >
less than <
equal to =

3. Put two random numbers (i.e., 14 and 82) on the board side by side with a 6-8 inch space between them. (See example in Associated File)

4. Ask the students which number is the smallest of the two? Put one dot beside the smaller number.

5. Ask the students which number is the larger of the two? Put two dots beside the larger number.

6. Write the example as shown in the associated file. Connect the dots.

7. Show several examples of each symbol on the board. Use the popsicle sticks to show equal numbers. When you feel that the students have grasped the idea of the symbols used to compare numbers have them to return to their desks.

8. Pass out the baggie of supplies and a piece of construction paper to each student.

9. Tell the students to construct similar problems on the paper using the numbers and dots.

10. Walk around monitoring and give individual help or assistance where it is needed.

Assessments

As the students work, observe to see if the students are using the correct symbols. Provide further assistance to the students who are not able to use the symbols correctly after the lesson.

Attached Files

This file contains an example of a dot to dot line drawing.     File Extension: pdf

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