Unit Plan
Buffalo State

A Five Day Approach to Using Technology and Manipulatives to Explore Area and Perimeter

For Teachers 3rd - 6th Standards
Young mathematicians build an understanding of area and perimeter with their own two hands in a series of interactive geometry lessons. Through the use of different math manipulatives, children investigate the properties of...
Workbook
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Centre for Innovation in Mamatics Teaching

Areas and Perimeters

For Students 3rd - 6th Standards
Cover some serious area in your geometry curriculum with this collection of worksheets. After first introducing the concept of area using the tiling method, this resource continues on to teach learners how to use...
Lesson Plan
Curated OER

The Trapping of Trapezoids

For Teachers 6th - 8th
This is a nice hands-on activity where young geometers create trapezoids and calculate their area by looking at areas of quadrilaterals and triangles. 
Lesson Plan
Curated OER

Finding the Area of a Triangle

For Teachers 5th
Fifth graders investigate the area of a triangle. In this geometry activity, 5th graders practice finding the area of a triangle using the correct formula: 1/2bh.
Lesson Plan
Curated OER

Shapes!

For Teachers K
Explore five basic shapes- square, rectangle, triangle, circle, and stars with youngsters. They will participate in hands-on activities, draw each shape, name each shape. They also get to eat things that are in the shapes they have just...
eBook
Savvas Learning

Saxon Math 5/4

For Teachers 3rd - 5th Standards
You'll never have to search for another worksheet again after downloading this extensive collection of Saxon math materials. With over 600 pages of example problems and skills practice exercises, this is a must-have resource...
Lesson Plan
American Statistical Association

Exploring Geometric Probabilities with Buffon’s Coin Problem

For Teachers 6th - 8th Standards
Scholars create and perform experiments attempting to answer Buffon's Coin problem. They discover the relationships between geometry and probability, empirical and theoretical probabilities, and area of a circle and square.
Activity
Curated OER

Geometric Pictures of One Half

For Teachers 3rd Standards
A learning task that involves creative ways of thinking permits children to use paper models as a way to visualize the fraction one-half. Learners can fold or cut their models in such a way that the unshaded regions, and shaded...
Worksheet
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K12 Reader

Shapes on a Plane

For Students 2nd - 3rd Standards
Geometric shapes are the focus of a comprehension exercise that asks readers to examine a short passage about planes, circles, triangles, and rectangles, and then to respond to a series of questions about the article.
Lesson Plan
Curated OER

Up For Change?

For Teachers 7th - 9th
Students explore similar objects. They participate in a series of hands-on, multimedia and online activities to examine how the edge length affects the angle measures, perimeters and areas of similar regular polygons. Students find the...
Lesson Plan
Curated OER

Investigating Area Using Tangrams

For Teachers 10th
Tenth graders connect the history of geometry to problem solving. In this geometry instructional activity, 10th graders investigate polygons through hands on manipulatives and solve problems relating to parallelograms and triangles. They...
Lesson Plan
Curated OER

Math Mediator Lesson 10: Slope

For Teachers 8th - 9th
Students explore the concept of slope.  In this Algebra I lesson, students investigate the definition of slope as rise over run or change in y compared to change in x.  The lesson includes a real-world problem in which the...
Lesson Plan
Curated OER

Trig River

For Teachers 6th - 8th
Students calcute distances using trigonometry and angle measurements. They estimate the width of the Trig River, measure it and compare their results with their classmates. They collaborate with a group to research and find the results.
Lesson Plan
Curated OER

Toe to Toe Geo

For Teachers 2nd - 6th
Young scholars study triangles. In this triangle lesson plan, students compare and classify triangles while milling to music. Young scholars will also trade triangles so they can match up with other similar triangles. Triangles are...
Lesson Plan
Curated OER

Triangle Passing and 3-Player Kick and Score

For Teachers 1st - 5th
Students practice soccer skills. In this soccer lesson, students use cones and a foam ball to practice kicking and trapping in small groups. Students use a timer to see how quickly their group can pass the ball around the triangle of cones.
Lesson Plan
Polar Trec

Playground Profiling—Topographic Profile Mapping

For Teachers 9th - 12th Standards
The Kuril islands stretch from Japan to Russia, and the ongoing dispute about their jurisdiction prevents many scientific research studies. Scholars learn to create a topographic profile of a specific area around their schools. Then they...
Lesson Plan
Curated OER

Polyhedra

For Teachers 9th - 11th
Students analyze convex polyhedra through hands on methods. In this geometrical shapes lesson, students construct paper models of convex polyhedra and identify the different properties including the number of sides, faces and edges.
Lesson Plan
Curated OER

Geometry

For Teachers 9th - 11th
Learners are introduced to the basics of Geometry. Using cutout shapes, they identify whether they are polygons by using the properties of polygons. They practice drawing shapes they are going to be using on an everyday basis and...
Lesson Plan
Curated OER

CSI Investigation of Congruence and Similarity

For Teachers 9th - 12th
Students differentiate between similarity and congruence using polygons. In this geometry lesson, students label triangles based on their properties. They find missing sides and angles using the interior sum theorem.
Lesson Plan
Curated OER

CSI Investigation

For Teachers 8th - 10th
Students solve real life situation using the Pythagorean Theorem. In this geometry lesson, students calculate the length, midpoint and slope of segments. They solve word problems using properties of square roots.
Lesson Plan
Curated OER

Geo Jammin' By DeSign - Day 2, Lesson 7: Start At Square One

For Teachers 2nd - 3rd
Students examine new shape possibilities by combining two and four triangles using manipulatives.
Lesson Plan
Curated OER

ExplorA-Pond:3rd Grade Shapes & Fractions

For Teachers 1st - 3rd
Students, using a map, drawing or aerial view of a pond, represent the shape of the pond using simple geometric shapes or fractions of those shapes. They identify the numerator and denominator in each fraction created.
Lesson Plan
Curated OER

Shapes to Forms

For Teachers 1st
Here is a math lesson that is really a visual arts lesson in disguise! In it, pupils utilize their knowledge of geometric shapes and forms to create a detailed version of a cylinder. The instructions on how to go about the task are very...
Lesson Plan
Curated OER

Measurement: Lesson 2

For Teachers 8th
Eighth graders complete math problems given in this lesson, where they find the perimeter and area of specific figures. They estimate the perimeter and area of shapes and figures and then complete the mathematical formula to find the...