Let's Talk Partitioning With Circles and Rectangles

Learning Resource Type

Learning Activity

Subject Area

Mathematics

Grade(s)

Overview

In this activity, the teacher will present students with the video Partitioning Circles and Rectangles. The teacher will introduce and define the math terms whole, equal shares, partition, halves (half of), thirds (third of), and fourths (fourth of). The teacher will use the Google Slide presentation to build and activate students' background/prior knowledge of circles, and rectangles while expanding students' knowledge of the math terms.

This resource was created in partnership with Dothan City Schools.

Phase

Before/Engage

Mathematics (2019) Grade(s): 2

MA19.2.27
Partition circles and rectangles into two, three, or four equal shares. Describe the shares using such terms as halves, thirds, half of, or a third of, and describe the whole as two halves, three thirds, or four fourths.

Vocabulary

Partition

Knowledge

Students know:

strategies for partitioning shapes into two, three, or four equal shares and reason about these shares.

Skills

Students are able to:

decompose circles and rectangles into halves, thirds, and fourths.
communicate the size of pieces using the appropriate fraction terminology.
recognize that equal shares may be different shapes within the same whole.

Understanding

Students understand that:

shapes can be equally partitioned into halves, thirds, and fourths.

Learning Objectives

The students will partition circles and rectangles into two, three, and four equal shares and apply the terms halves, thirds, and fourths to describe the whole.

Activity Details

1. The teacher will present the video Partitioning Circles and Rectangles.

2. The teacher will complete the Venn Diagram on the Google Slide presentation with students.

3. The teacher will introduce students to the math terms using anchor charts: partition, whole, equal shares, halves (half of), thirds (third of), and fourths (fourth of).

4. The teacher will give each student a circle and rectangle to partition (using a pencil) into equal parts. Students should discuss and their share partitions with their group using the math terms introduced.

5. The teacher will check each student's work for accuracy and use a black marker to trace and darken the pencil marks.

6. The teacher will give the students tape to tape their circles and rectangles onto the correct anchor chart of halves, thirds, or fourths. See the Google Slide presentation for circles and rectangle cutouts.

7. For the final step, the teacher will give students the exit ticket to complete.

Assessment Strategies

The teacher will monitor students' engagement and participation using the Google Slide presentation.

The teacher will take anecdotal notes as students give feedback to others during small group purposeful talk.

The teacher will listen to students as they explain in their own words what partitioning, equal shares, halves, thirds, and fourths mean.

The teacher will evaluate students' completed exit tickets to check for the accurate partitioning of circles and rectangles into equal shares of halves, thirds, and fourths.

Variation Tips

For students who struggle with this activity, the teacher will provide intervention in small groups using laminated circles and rectangles cut-outs of all sizes. Use a dry-erase marker to model to students how shapes can be divided into halves, thirds, and fourths.

For students who are very skilled in this activity, the teacher should provide students with other shapes to partition into halves, thirds, and fourths. Students should also write the meaning for each in a math notebook/notecards.

Background / Preparation

1. Teacher will need to preview the video Partitioning Circles and Rectangles.

2. Teacher will need to preview the Google Slide presentation.

3. Teacher will need anchor chart paper to write out the meaning of math terms: whole, partition, equal shares, halves, thirds, and fourths. See the learning activity strategy for anchor chart models.

4. Teacher will need circles and rectangles shapes (can be printed out, cut out from construction paper, or pre-cuts).

5. Teacher will need to copy exit tickets for each student.

6. Teacher will need pencils for each student.

7. Teacher will need tape.

8. Teacher will need a dark-colored marker.

9. Teacher will need to have students in small groups of three to four students.

Partitioning With Circles and Rectangles Slideshow

https://docs.google.com/presentation/d/1emguF4Zbbbv1jnmc3ghNbX1CWvYi7GY1oSnRX8x…

Approved Date

2022-12-08

Owner (Author)

robincoachman