Interactive
Curated OER

Geometry

For Students 2nd - 3rd
In this geometry/math learning exercise, students name eight shapes by circling the name that best describes it. Students select the correct answer from 4 choices.
Interactive
Curated OER

Squares, Circles, Cylinders, & Spheres

For Students 4th - 7th
In this online interactive squares, circles, cylinders, and spheres worksheet, students use geometry to solve 8 problems that require them to identify shapes.
Interactive
Curated OER

Identifying the Shape of Objects 1

For Students 1st - 4th
In this identifying the shape of objects 1 worksheet, students identify the picture and choose its correct shape online from multiple answers with immediate feedback.
Interactive
Curated OER

Probability and Geometry Problems

For Students 9th - 12th
In this online math worksheet, students consider a variety of scenarios which include elements of geometry and probability. This excellent resource allows the students to check their answers, and to get "hints" should they run into...
Interactive
Curated OER

Ten Multiple-Choice Circle Problems

For Students 9th - 10th
In this circle activity, students solve ten multiple-choice questions concerned with the area, radius, diameter, and circumference of a circle.  The solutions are provided by clicking on the "show answers" button on the bottom of...
Interactive
CK-12 Foundation

Ellipses Centered at the Origin: Lithotripsy

For Students 11th - Higher Ed Standards
Investigate ellipses through the lens of medical applications. Pupils use a medical scenario to determine the equation of an ellipse. By using the interactive, learners determine the foci and major and minor axes of the ellipse that...
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...
Interactive
CK-12 Foundation

Linear Systems with Addition and Subtraction: Fill in the Boxes 2

For Students 8th - 10th Standards
Systematically combine shapes to arrive at one solution. The resource models a system of linear equations using colored shapes. Pupils follow rules to combine circles and squares to add the two equations together, resulting in one...
Interactive
Curated OER

Have You Got the Angle?: Pre Test

For Students 4th - 8th
In this angles worksheet, students complete multiple choice questions about the shape and number of angles. Students complete 10 questions total.
Interactive
Curated OER

Grade 3 Math Practice

For Students 3rd - 4th
In this grade 3 math worksheet, students complete a total of 10 questions that use a variety of grade 3 concepts. Page is part of a site with links. 
Interactive
Mangahigh

Mangahigh: Shape: The Parts of a Circle

For Students 9th - 10th Standards
Test your knowledge of the parts of a circle.
Interactive
Mangahigh

Mangahigh: Shape: Circumference of a Circle

For Students 9th - 10th Standards
Determine the circumference of a circle or simple arc lengths.
Interactive
Mangahigh

Mangahigh: Shape: Radius and Chord Rule for Circles

For Students 5th - 7th
Test your knowledge of radius and chord rules for circles.
Interactive
Mangahigh

Mangahigh: Shape: Isosceles Triangles Inside Circles

For Students 9th - 10th Standards
Determine isosceles triangles inside a circle made from chords and radii.
Interactive
Mangahigh

Mangahigh: Shape: Inscribed and Central Angles in Circles

For Students 9th - 10th Standards
Use theorems to prove ideas of inscribed and central angles in circles.
Interactive
Mangahigh

Mangahigh: Shape: Inscribed Angles in Circles

For Students 9th - 10th Standards
Use theorems to prove inscribed angles in circles.
Interactive
Mangahigh

Mangahigh: Shape: Radius and Tangent Rule for Circles

For Students 9th - 10th Standards
Determine the rules for radius and tangents of circles.
Interactive
E-learning for Kids

E Learning for Kids: Math: Market Place: 2 D Shapes and Patterns

For Students K - 1st
On this interactive site, students learn to identify squares, circles, and triangles.
Interactive
Study Pad

Splash Learn: Partition Shapes: Halves and Fourths

For Students 1st Standards
[Free Registration/Login Required] Answer questions about the halves and fourths of circles and rectangles, and collect coins for each correct answer.
Interactive
Other

Kinderweb: Educational Children's Games

For Students Pre-K - 1st Standards
Use this site to practice identifying shapes, colors, and animals with these interactive games.
Interactive
Mangahigh

Mangahigh: Pyramid Panic: Basic Shapes to Advanced Geometry

For Students 9th - 10th Standards
Guide a mummy safely through the burial chambers of a pyramid as you solve length and area problems in basic to advanced geometry. There are four game zones that deal with circles and triangles, quadrilaterals, the Pythagorean Theorem,...
Interactive
Mangahigh

Mangahigh: Shape: Right Angle in a Semi Circle Rule

For Students 6th - 9th Standards
Test your knowledge of the measurement of angles in a triangle.
Interactive
Mangahigh

Mangahigh: Shape: Alternate Segment Rule for Circles

For Students 9th - 10th Standards
Use the alternate segment rule for cirlces to determine the angle measures.
Interactive
Calculator Soup

Calculator Soup: Geometric Shapes

For Students 9th - 10th Standards
This reference lists formulas for geometric shape measurements and offers links to online calculators.