Lesson Plan
Illustrative Mathematics

Overlapping Squares

For Teachers 5th - 7th Standards
The objective of this activity is to find the percent of the area of a two squares overlapping. Mathematicians find the ratio of area for the part that overlaps to the rectangle formed. The final answer is a percent as a rate per 100....
Worksheet
Curated OER

MAP Practice

For Students 9th - 11th
In this geometry worksheet, students create circle, line and bar graphs using different comparisons of events. There are 24 questions with an answer key.
Lesson Plan
Curated OER

Pushing Pivots

For Teachers 8th - 10th
Students calculate the area and diameter length of a circle. In this geometry lesson, students investigate the use of pivots as they review parts of a circle. They create a circle using cardboard and label all the parts.
Lesson Plan
Curated OER

Geometry: Area Project

For Teachers 6th
Sixth graders identify and use area formulas for finding the area of geometric shapes.
Lesson Plan
Curated OER

Geography: Lengths, Perimeter, and Area of Similar Objects

For Teachers 6th
Sixth graders explore characteristics of similar objects. Using attribute blocks, they explore the ratios of the perimeter, area and side length in similar shapes. They calculate and compare the area of shapes.
Worksheet
Raytheon

Geometry: Circles

For Students 6th - 8th
In this geometric circumference worksheet, 8th graders calculate the circumference of each of the 18 circles. The remaining pages of the worksheet include formulas and lesson ideas on finding the circumference of circles.
Lesson Plan
Curated OER

Geometry and Geoboard

For Teachers 6th
Sixth graders use geoboards and dot paper to experiment with geometric concepts. In this geometry lesson, 6th graders complete four activities using geoboards or dot paper including naming points on a coordinate plan and finding the area...
Lesson Plan
Curated OER

Comparing Area and Perimeter

For Teachers 9th - 11th
Students solve problems by finding the perimeter and area of an enclosed area. In this geometry lesson, students differentiate between the area and the perimeter. They see how they relate and how to use it to maximize an enclosed area.
Worksheet
Curated OER

Geometric Shapes: Area and Perimeter

For Students 5th - 8th
There's a reason this worksheet is done in groups! Tricky word problems give geometry scholars a challenge as they use prior knowledge about shapes to find the area and perimeter given a few measurements. Students will enjoy discovering...
Worksheet
Lane Community College

Review Sheets: Geometry

For Students 8th - 11th
Full of problems with polygons, angles, lines, and triangles, your learners get a multi-page packet that provides all they need to know. It contains many of the standard problem types as well as some more challenging questions. 
Lesson Plan
Curated OER

Ara of Circles

For Teachers 8th - 10th
Students identify the differentiate the different properties of circles and parallelograms. In this geometry instructional activity, students calculate the area of each solid and identify the formula. They relate Pi to the circumference...
Lesson Plan
Curated OER

Radius, Diameter and Area

For Teachers 8th - 9th
Young scholars 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.
Worksheet
Curated OER

Circles

For Students 9th - 10th
In this geometry worksheet, learners solve problems by finding the diameter, radius and chord of a circle. They also solve for the area of the circle. There are 10 questions with an answer key.
Interactive
Curated OER

Yoplait with Areas and Volumes

For Students 9th - 12th
In this areas and volumes worksheet, students find the area of truncated cones and elliptical cylinders.  They find the area by using one of three methods:  the disk method, the shell method, and using geometry.  This...
Lesson Plan
Curated OER

Geometry in Nature

For Teachers 6th - 7th
Young scholars examine how the circumference, diameter, and the relationship of Pi of a circle are related. They count the summer rings of a tree to determine its growth.
Worksheet
Curated OER

Geometry Practice: Loci and Transformations

For Students 9th - 12th
This resource guides young geometers to create new polygons from others of equal area, compare an image to its reflection and find errors, conduct repeated reflections, map translations, and determine center of rotation. No solutions are...
Lesson Plan
Curated OER

Volume of a Cylinder

For Teachers 8th - 10th
Middle and high schoolers calculate the volume of cylinders. They measure the height, radius and diameter of cylinders. Following given formulas, students calculate the area and volume of the cylinder. They compare cylinders and predict...
Worksheet
Curated OER

Finding Angles, Volume, Area, and Perimeter

For Students 4th - 6th
Elementary schoolers complete word problems dealing with the different kinds of measurements of different shapes. They solve 10 problems including perimeter, angles, volume, and more.
Lesson Plan
Curated OER

Areas of Polygons

For Teachers 8th - 10th
Students calculate the are of regular polygons. In this geometry lesson, students create polygons on the computer and move it around to create different shapes. They explore the area of different polygons and how they inter-relate.
Lesson Plan
Curated OER

Linear/Planar Geometry - Week 5

For Teachers 12th - Higher Ed
In this linear and planar geometry worksheet, students use the Pythagorean Theorem, equation of a line, slope of a line and area formulas to solve problems. This three-page worksheet contains seven problems.
Lesson Plan
Curated OER

Exploring Diameter and Circumference

For Teachers 9th - 12th Standards
Learn how to identify the diameter and circumference of a circle. Then, collect data on a circle and relate it to the diameter and circumference of a circle. Last, plot data and find the line of best fit.
Lesson Plan
Texas Instraments

Angles in Circles

For Teachers 9th - 12th Standards
Teach your learners how to investigate the relationship between a central angle and an inscribed angle which subtend the same arc of a circle. The dynamic nature of Cabri Jr. provides opportunity for conjecture and verification.
Lesson Plan
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Illustrative Mathematics

Toilet Roll

For Teachers 9th - 11th Standards
Potty humor is always a big hit with the school-age crowd, and potty algebra takes this topic to a whole new level. Here the class develops a model that connects the dimensions (radii, paper thickness, and length of paper) of a...
Lesson Plan
Curated OER

Volume and Surface Area

For Teachers 5th - 6th
Students explore volume and surface area. In this math activity, students fill boxes with cubes to identify the volume of the boxes. Students discuss area.