Description
What our Partitioning Circles/Rectangles lesson plan includes
Lesson Objectives and Overview: Partitioning Circles/Rectangles teaches students how to partition circles and rectangles into both even and uneven parts. At the end of the lesson, students will be able to partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters. This lesson is for students in 1st grade and 2nd grade.
Classroom Procedure
Every lesson plan provides you with a classroom procedure page that outlines a step-by-step guide to follow. You do not have to follow the guide exactly. The guide helps you organize the lesson and details when to hand out worksheets. It also lists information in the blue box that you might find useful. You will find the lesson objectives, state standards, and number of class sessions the lesson should take to complete in this area. In addition, it describes the supplies you will need as well as what and how you need to prepare beforehand.
Options for Lesson
Included with this lesson is an “Options for Lesson” section that lists a number of suggestions for activities to add to the lesson or substitutions for the ones already in the lesson. All of the suggestions for this lesson relate to the activity. One optional adjustment to the activity is to have your students cut shapes out of paper instead of using play dough. The students can also begin to think of the equal shares as a fraction of a whole. If you have more advanced students, you can also ask them to cut their play dough into thirds or fifths and connect with the written denominator of a fraction.
Teacher Notes
The teacher notes page includes a paragraph with additional guidelines and things to think about as you begin to plan your lesson. This page also includes lines that you can use to add your own notes as you’re preparing for this lesson.
PARTITIONING CIRCLES/RECTANGLES LESSON PLAN CONTENT PAGES
Partitioning Circles and Rectangles
The Partitioning Circles/Rectangles lesson plan includes two content pages. To partition means to split something into different parts. It’s easy to remember this word because it has the word “part” in it.
This lesson teaches students how to partition circles and rectangles into equal parts, which are the same size.
Circles
Circles don’t have any sides or corners. They are completely enclosed. To partition circles, the lines go through the middle of the shape and are space equally.
The lesson shows a few examples of circles that are and are not equally partitioned. After you partition them, you can count the number of equal shares.
Rectangles
Rectangles have four sides, four corners/angles, and parallel opposite sides. To partition rectangles, the lines are equally spaced. Rectangles can be partitioned vertically, horizontally, or diagonally.
The lesson shows a few examples of rectangles that are and are not equally partitioned. After you partition them, you can count the number of equal shares.
PARTITIONING CIRCLES/RECTANGLES LESSON PLAN WORKSHEETS
The Partitioning Circles/Rectangles lesson plan includes three worksheets: an activity worksheet, a practice worksheet, and a homework assignment. You can refer to the guide on the classroom procedure page to determine when to hand out each worksheet.
PLAY-DOUGH ACTIVITY WORKSHEET
For the activity, groups of students will receive balls of play-dough, a small plastic cup, plastic cutters, and rolling pins. They will roll out their dough and cut out a circle using the plastic cup. They will then cut their circle into halves. Next, the students will roll out another circle and cut it into quarters. They will then repeat this exercise with rectangles.
WHICH FIGURE PRACTICE WORKSHEET
The practice worksheet asks students to identify figures show different parts of a whole. For example, they will identify which of three figures shows halves, which shows quarters, and which shows fourths. They will also identify how many equal parts are in different shapes.
PARTITIONING CIRCLES/RECTANGLES HOMEWORK ASSIGNMENT
For the homework assignment, students will partition different shapes into halves and quarters. They will also draw an example of a circle and a rectangle that are not equally partitioned.
Worksheet Answer Keys
This lesson plan includes answer keys for the practice worksheet and the homework assignment. If you choose to administer the lesson pages to your students via PDF, you will need to save a new file that omits these pages. Otherwise, you can simply print out the applicable pages and keep these as reference for yourself when grading assignments.
