Curated OER
Find the Radius of the Smallest Circle that Contains the Figure
In this geometry worksheet, students calculate the radius of the smallest possible circle that contains the figure provided. The complete solution is provided by clicking on the "show solution" button found below the problem.
Curated OER
Robot Area
Learners calculate the area of different polygons. In this geometry lesson, students explore polygons based in their shape and number of sides. They find the formula for the area and use each specific formula for each shape.
Curated OER
Shapes
In this geometry worksheet, students choose the correct name to match the shape given. Students identify the words for oval, rectangle, square, circle, triangle, and diamond.
Curated OER
Learning About Rectangles
In this geometry and printing worksheet, 3rd graders practice drawing 4 rectangles by tracing the dotted lines before drawing 2 independently. They examine a box at the bottom of the page and color 6 rectangles in that box.
Curated OER
Squares
In this geometry worksheet, students color the pictures of objects that are shaped like squares. They choose between 11 pictures of items such as a heart, a window frame, a computer, and a coin.
National Council of Teachers of Mathematics
Perplexing Parallelograms
In this geometry worksheet, young mathematicians divide a parallelogram into four, by choosing points along a diagonal. Students calculate the area of each parallelogram and look for any patterns that may emerge. The one-page...
Texas Instruments
Trisecting a Square
High Schoolers investigate the question of whether or not the area of square can be trisected. In this activity, they use geometry software to answer the questions and determine what conditions are necessary to the three regions to by...
Curated OER
Interior Angles of Regular Polygons
Students investigate the interior angles of a triangle. In this geometry lesson, students create the formula to calculate the angles inside a triangle. They observe the total sum of a triangles angle on the navigator.
Curated OER
Rhombi, Kites, and Trapezoids
Students identify the number of diagonals for each polygon. For this geometry lesson, students identify the polygons based on their diagonals and the way it intersect. They create visuals using the navigator to see the changes in the...
Curated OER
Parallelogram Worksheet
In this geometry worksheet, students identify important properties of parallelograms. They identify properties of the sides, angles and diagonals. There identify special parallelograms also.
Curated OER
Perimeter of Kite
In this geometry worksheet, students calculate t he perimeter of a kite given the values of the sides and diagonals. There are 6 questions with an answer key.
Curated OER
Geometry Slideshow
Sixth graders create slideshows of geometric terms. They use images taken with digital cameras or scanned from magazines.
Curated OER
Review Geometry - Week 8: (Triangles)
In this triangle worksheet, students determine the length of the sides of a triangle, perpendicular lines, and the area of triangles. This two-page worksheet contains eight problems.
Curated OER
Review Geometry - Week 8 (Triangles)
For this triangle worksheet, students use similar figures to find the length of one side of two similar triangles. They find the area of a triangle inscribed in a rectangle. This two-page worksheet contains eight problems.
Curated OER
Similarity and Dilations - Discover Properties of Similar Figures
Learners investigate properties of similar figures. In this properties of similar figures lesson, pupils construct similar figures using Cabri Jr. They dilate their figure to create a similar one, and discuss the relationships between...
Curated OER
Guess My Shape
Learners play a game with shapes. They work in groups to identify the names and characteristics of various shapes. They give each other clues to see if others can identify the shape being described. This is a great hands on activity.
Math Solutions
Shape Sorting: Looking for Green!
Young mathematicians rotate, flip, and sort their way to an understanding of the different attributes of geometric figures. Using transparent yellow and blue shapes, children try to match congruent figures together...
Mathematics Assessment Project
Square
Don't be a square! Young mathematicians determine the slope and length of a line segment. They then prove whether four given coordinate points form a square.
Education Development Center
Finding Parallelogram Vertices
Four is the perfect number—if you're talking about parallelograms. Scholars determine a possible fourth vertex of a parallelogram in the coordinate plane given the coordinates of three vertices. They read a conversation...
Curated OER
Countdown Challenge: Similarity
In this similarity learning exercise, students observe similar rectangles and determine the length of the diagonal. They use words, symbols and diagrams to solve the problem and explain the results. This one-page learning exercise...
Curated OER
Countdown Challenge: Similarity
In this similarity learning exercise, students use similar rectangles to find the length of a diagonal. They use symbols and write paragraphs to explain the problem. This one-page learning exercise contains one similar problem with 13...
Curated OER
Countdown Challenge: Area of Basic Shapes
In this basic shapes worksheet, learners use formulas to determine the area of given figures. They compute the area of composite figures and subtract the area of shaded areas. This one-page worksheet contains 12 problems.
Curated OER
Sir Cumference and the First Round Table
In this circumference worksheet, students solve and complete 5 different figures illustrated on the sheet. First, they cut out each shape found on the bottom. Then, students use the shapes on the left as clues to create the corresponding...
Curated OER
Isosceles Right Triangle
In this isosceles right triangle worksheet, 10th graders solve and complete 5 different constructions of composition and decomposition. First, they make 4 congruent isosceles triangles with the model on the left. Then, students create...