Lesson Plan
Curated OER

Radius, Diameter and Area

For Teachers 8th - 9th
Learners identify the radius and diameter of a circle. In this geometry lesson, students calculate the volume and area of a cylinder and circle. They relate the circumference of a circle to Pi.
Lesson Plan
Curated OER

Unit Circle and Triangle

For Teachers 9th - 11th
Students apply the Unit Circle to solve ratios of triangles. In this geometry lesson, students derive the different ratios of a triangle using the Pythagorean Theorem. They find the angles of a unit circle using a right triangle.
Assessment
Concord Consortium

Three Rubber Bands

For Students 7th - 12th Standards
Stretch your mind about triangles. Given a triangle, scholars consider a smaller triangle formed when they stretch three rubber bands from each vertex to the opposite side. They determine the ratios of the areas and perimeters of the...
Worksheet
Curated OER

Geometric Shapes: Shapes in Everyday Items

For Students 1st - 3rd
Which item is shaped like a cone? Use this multiple-choice shape recognition worksheet to give students access to shapes in their everyday life. Four questions ask scholars to identify which of the pictured items is shaped like a sphere,...
Worksheet
Curated OER

Acute and Obtuse Angles

For Students 3rd - 5th
For this angles worksheet, students label a set of 4 angles as either acute or obtuse. Page has several links to additional geometry activities.
Lesson Plan
Curated OER

Tessel Your Way to Nagano!: Olympics, Winter Sports, Snowboarding, Graphic Design, Geometry, Math, M.C. Escher, Tessellations

For Teachers 4th - 6th
Students create Post-It note fundamental regions to tesselate. They make tesselations using computer software or websites. They create a jacket design with tesselation and determine the cost of production.
Lesson Plan
Curated OER

Geometry: Classifying Angles

For Teachers 9th - 12th
Students measure, construct, and classify angles as acute, right, straight, and obtuse. Once they have completed an angle worksheet, students use a map of South Carolina to locate cities by constructing the aforementioned angles.
Printables
Mr. Williams Maths

Eight Circle Theorems Page

For Teachers 8th - 12th Standards
Your learners will find these circle theorems nicely organized with diagrams included that present the geometric relationships between the circle circumference, chords, central and circumference angles and tangents.
Activity
K-5 Math Teaching Resources

Tangram Cutout

For Students K - 5th Standards
Challenge the spatial thinking of your young mathematicians with this printable tangram puzzle. Using different sized triangles, squares, and parallelograms, children must figure out how to fit all the shapes together to create a square.
Lesson Plan
Mathematics Assessment Project

Evaluating Statements About Enlargements

For Teachers 9th - 12th Standards
Double, toil ,and double linear dimensions. Learners first complete an assessment investigating how doubling linear dimensions affects the area of pizzas and the volume of popcorn containers. They then complete an activity investigating...
Assessment
Concord Consortium

Three Circles

For Students 9th - 12th Standards
Round and round and round we go. Given a diagram of three circles, two of which share a point with the third circle, learners identify the radius of each circle. Doing so requires setting up and solving a system of equations based on the...
Lesson Plan
Curated OER

Add'm and Eve in the Garden

For Teachers 6th - 8th
Students research and design five different shaped raised beds for the school garden. In small groups, they conduct Internet research, measure and create a cost analysis for the construction and design, and submit their plans to the...
Lesson Plan
Curated OER

Wind Surge: Interactive On-line Mac and PC

For Teachers Higher Ed
Students examine the influence of the end wall. They find a basin size and wind speed such that a given wall height is overtopped. Then, increase the wall elevation until overtopping stops. Students explain the difference in results.
Lesson Plan
Curated OER

Triangle Puzzler

For Teachers 5th - 8th
Pupils are introduced to some basic concepts of geometry. They explain that the definition of a triangle is a figure with three sides, three angles, and three points. Triangles can be named by using three points in their correct sequence.
Lesson Plan
Curated OER

Geo Jammin' - Day 4, Lesson 12: Geo Gee-Hawin'

For Teachers 2nd - 5th
Students review geometry unit content through a vocabulary/word game. They demonstrate understanding using geoboards to answer questions. They work in groups and it's a race to the correct answer.
Lesson Plan
Curated OER

Surface Area of Rectagular Prisms

For Teachers 6th
Sixth graders investigate the area of polygons. In this geometry lesson plan, 6th graders calculate area of prisms using geometric formulas. They work with prisms and other rectangular shapes.
Lesson Plan
Texas Instruments

Golden Ratio Lab

For Teachers 9th - 12th Standards
Learners investigate the Golden Ratio in this algebra I or geometry lesson. They explore the Golden Ratio as the conduct an experiment in which they collect various measurement from their team members and find the regression equations...
Worksheet
Curated OER

Vocabulary Quiz

For Students 6th - 8th
In this literacy learning exercise, students find the definitions for the words that are related to the concepts of geometry. The answers are found by clicking the button at the bottom of the page.
Worksheet
Curated OER

Shapes

For Students K - 2nd
In this geometry worksheet, learners choose the correct name to match the shape given. Students identify the words for oval, rectangle, square, circle, triangle, and diamond.
Worksheet
Curated OER

Chapter 21 Word Search Puzzle

For Students 3rd - 4th
In this language arts worksheet, students study 5 words in a word bank and locate them in a word search puzzle. The words pertain to geometry; the meaning of the title is unknown.
Lesson Plan
Curated OER

Rallytable Angle Measuring

For Teachers 6th - 10th
In this geometry worksheet, students measure various angles. First, they write what type of angle each one is, whether right, acute, or obtuse. Then students estimate the measurement and then write the actual measurement for each angle.
Worksheet
Curated OER

Mixed Problems- Logical Reasoning

For Students 3rd
In this mixed math problems learning exercise, 3rd graders complete 8 logical thinking problems. They solve patterning problems, magic squares, mystery numbers, and geometry problems.
Worksheet
Curated OER

Sunshine Math- 2

For Students 2nd - 3rd
In this math applications instructional activity, students solve 6 varied problems that include estimation, money, basic operations, pictographs and geometry.
Worksheet
Curated OER

Sunshine Math- 1 Venus, XV

For Students 1st - 2nd
In this problem solving worksheet, students complete 9 story problems that include geometry, measurement, input and output, pictographs, time, addition and weights.