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Curated OER
Triangle Explorer
Students compute the area of triangles in a computer program. In this measurement lesson plan, students complete 5 easy, 5 medium, and 5 hard problems.
Curated OER
Rice (Gohan) Observations
Second graders investigate rice or gohan as it's called in Japan in a couple of experiments. They tally the results.
Curated OER
Our Class Record Book
Second graders, in groups, prepare a list of proposed record ideas for the class book.
Curated OER
Square Circles
Students analyze and demonstrate how a circle can be measured in square units and examine how diameter, circumference and radius are related.
Curated OER
Year Book Page Special Shape Collage
Students design a collage of pictures for a yearbook that make a shape. They determine the area of the shape and the price of putting the collage in the yearbook.
Curated OER
Math Awareness Game
Students participate in a math game. In the game, any math problem is allowed as long as the answer is between 1 to 100.
Curated OER
Area Lesson Plan
Students manipulate a variety of materials and computer applets in order to explore area and the units used to measure it.
Curated OER
Congruent Triangles - Is This Enough Information?
Seventh graders examine congruence postulates and apply knowledge to triangles in the world around them.
Curated OER
Black Bayou Lake Measures Up
Young scholars, in groups, estimate measurments and then select the tools needed and measure various items at Black Bayou Lake refuge.
Curated OER
Eye From the Sky
Young scholars are introduced to the concept of aerial perspective and scale. Students will use satellite technology to view their neighborhoods and sketch the area surrounding their schools. They will take part in a neighborhood walk to...
Curated OER
Math: a World of Symmetry
Learners expand their knowledge of quadrilaterals and identify basic symmetrical forms. Over three weeks, they explore the math, application, and discussion of symmetry. After conducting Internet research, students create symmetrical...
Curated OER
Angle Benchmarks
Sixth graders discuss the characteristics of specific angles and then use the information to to identify and estimate given angles. The class goes outside, identifies north, and turns a specified amount of degrees. Using a given compass,...
Curated OER
Scenes of the Earth
Students examine and study how changes in perspective can change the way that they can observe objects. They explore the relationship between a scene's area and its detail. Each student looks at the ground through cardboard tubes from...
Better Lesson
Better Lesson: Area and Perimeter Review Using Legos
Lesson plan in which students calculate area, build areas to a given amount, and calculate the perimeter with the use of Legos. Step by step instructions and videos are provided. CCSS.Math.Content.3.MD.C.7.c Use area models to represent...
Government of Alberta
Learn Alberta: Math Interactives: Exploring Area and Perimeter
This multimedia Learn Alberta math resource looks at area and perimeter and how math is involved in the operations of a ranch. The accompanying interactive component lets students investigate a variety of rectangles to get a target...
Education Development Center
Tune in to Learning: Polygons and Perimeter
Explore different polygons and find their perimeter with this interactive lesson from T.V.411. Students see examples of polygons in everyday life and have immediate feedback to your responses to lesson questions.
Sophia Learning
Sophia: Calculating the Perimeter of a Triangle
Determine the perimeter of a triangle and assess your knowledge with this lesson.
Shodor Education Foundation
Shodor Interactivate: Lesson: Perimeter
This lesson plan helps students explore the mathematical concept of perimeter. Resources are available to support teacher and students.
CK-12 Foundation
Ck 12: Elem Math: Perimeter With Side Lengths
[Free Registration/Login may be required to access all resource tools.] Students practice calculating the perimeter of various polygons.
Khan Academy
Khan Academy: Find Perimeter by Counting Unit Squares
Calculate the perimeter of a rectangle from its side lengths. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
ArtsNow
Arts Now Learning: Performing Perimeter [Pdf]
In this lesson, 3rd graders calculate the perimeter of various geometric shapes and represent the perimeter with a movement phrase. They will identify the types of angles within each shape. Other students will identify the shape that was...
Shodor Education Foundation
Shodor Interactivate: Lesson: Length, Perimeter, and Area
This lesson plan examines the mathematical concepts of length, perimeter, and area. Resources are included that support teachers and learners.
National Council of Teachers of Mathematics
The Math Forum: Seventh Grade Math: Area and Perimeter
Learn how to enlarge drawings, figure out how much tile to buy to cover a specific floor, and learn about area and perimeter. These and other lesson plans are provided, including a fun interdisciplinary plan featuring dragons.