Perimeters of Pools
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This learning activity provided by:
Author:
Stephanie Carver
System: Cullman City School: Cullman City Board Of Education
General Activity Information
Activity ID:
2805
Title: Perimeters of Pools
Digital Tool/Resource: Perimeter of Pools Task
Web Address – URL:
Overview: During this learning activity, students will solve a real-life task that allows students to find the perimeter of several pools (polygons). Students will write equations and solve them to find the perimeter of several polygons.
Associated Standards and Objectives
Content Standard(s):
Mathematics 25. Solve real-world problems involving perimeters of polygons, including finding the perimeter given the side lengths and finding an unknown side length of rectangles.
Unpacked Content
Evidence Of Student Attainment:
Students:
Measure to find the perimeter of shapes.
Given a figure, determine the perimeter of the figure.
Given a figure with a missing side length and a given perimeter, determine the missing side length.
Solve real-world problems involving perimeters of polygons.
Use a multiplication expression to find perimeter of a polygon when all side measures of the polygon are equal. Teacher Vocabulary:
Attribute
Dimension
Perimeter
Polygon
Two-dimensional Knowledge:
Students know:
Measurable attributes of objects, specifically perimeter.
Strategies for modeling measurement problems involving perimeter.
Strategies for representing and computing perimeter. Skills:
The Students are able to:
Solve real-world and mathematical problems involving perimeters of polygons.
Find the perimeter of a figure given the side lengths.
Find an unknown side length of a polygon given the perimeter and one missing side length. Understanding:
Students understand that:
Perimeter is measured in length units and is the distance around a two-dimensional figure.
If all the sides of a polygon are equal, then the perimeter can be determined by multiplying one side length by the total number of sides. Diverse Learning Needs:
Essential Skills:
Learning Objectives: M.3.25.1: Define perimeter.
M.3.25.2: Recall the formula for perimeter (P= L+L+W+W or P=2L + 2W).
M.3.25.3: Recall basic addition and multiplication facts. M. 3.23.4: Build and draw shapes to possess defining attributes.
M.3.25.4: Express the length of an object as a whole number of length units by laying multiple copies of a shorter object (the length unit) end to end; understand that the length measurement of an object is the number of same-size length units that span it with no gaps or overlaps.
M.3.25.5: Describe measurable attributes of objects such as length or weight.
Prior Knowledge Skills:
Recall doubles addition facts.
Model written method for composing equations.
Alabama Alternate Achievement Standards
AAS Standard:
Learning Objectives: The students will solve real-world problems involving the perimeter of polygons.
Strategies, Preparations and Variations
Phase: During/Explore/Explain
Activity:
The teacher will display the "Perimeter of Pools" slides.
Before starting the activity, the teacher will show the title slide. The teacher will ask students, "What are you wondering? What do you think this problem is about?"
The teacher will continue to go through the remaining slides. The teacher will need to make sure the students have their student notebooks for recording information.
The teacher will allow students to share their equations and answers to the questions on each slide. (This should spark a class discussion on finding the perimeter of polygons.)
Assessment Strategies: The teacher will assess the students as they share their equations and answers to check for understanding.
Advanced Preparation:
Students will need a student notebook for recording. If the teacher does not require a student notebook, the work can be done on a piece of paper or on digital form.
The teacher should preview the Perimeters of Pools task and provide a way to display the task.
Variation Tips (optional):
This activity can be extended by asking the students the difference between the perimeter of the pools and the area.
This activity can be extended by having the students draw their own pool polygon and have a partner find the perimeter of it.
Notes or Recommendations (optional):
Keywords and Search Tags
Keywords and Search Tags:
equation, perimeter, polygon
