Lesson Plan
Curated OER

Conjectures For Intersecting Circles

For Teachers 9th - 10th
Students identify properties of circles. In this geometry lesson plan, students identify the center of two intersecting circles.They use Cabri software to create circles and move it around to make observation.
Lesson Plan
Curated OER

Circle, Secants

For Teachers 9th - 11th
Learners identify the secant segment of a circle. In this geometry lesson, students investigate secant lines formed outside the circle. They use Cabri software to create drawings and explore circles and secants.
Worksheet
Curated OER

Counting shapes

For Students 1st - 3rd
In this counting shapes worksheet, students count how many squares, rectangles, circles, and triangles they can count in the picture of a house. Students count 45 shapes total.
Worksheet
Curated OER

Parts of a Circle

For Students 5th - 6th
In this circle worksheet, students choose the correct term that describes a given set of math symbols, using a labeled circle. A reference web site is given for additional activities.
Worksheet
Curated OER

Parts of a Circle

For Students 5th - 6th
In this parts of a circle worksheet, students choose correct terms to identify labeled parts of a circle. A reference web site is given for additional activities.
Worksheet
Curated OER

Parts of a Circle

For Students 4th - 6th
In this parts of a circle worksheet, learners choose the correct term to describe labeled parts of a circle. A reference web site is given for additional activities.
Worksheet
Curated OER

Circle Area, Perimeter and Circumference

For Students 5th - 8th
In this geometry skills activity, students respond to 7 questions that require them to find the area, perimeter, and circumference of circles.
Worksheet
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Concurent Circles II

For Students 9th - 11th
In this geometry worksheet, learners draw a shape based on the directions. They tell the reasons the four resulting circles are concurrent. A sample drawing is included.
Lesson Plan
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Inscribing a Circle in a Triangle

For Teachers 9th - 12th Standards
Pupils investigate inscribing a circle in a triangle. They use Cabri Jr. to draw a triangle, locate the incenter, and use the distance from the incenter to a side of the triangle to inscribe a circle. The dynamic nature of the geometry...
Lesson Plan
Texas Instruments

Areas of Regular Polygons and Circles

For Teachers 9th - 12th Standards
Learners explore area of polygons and regular polygons in this math lesson. They calculate the area of several polygons using Cabri Jr. and analyze shapes and write formulas to solve for the area.
Worksheet
Curated OER

Geometry --Similar Shapes

For Students 2nd - 3rd
In this geometry worksheet, students circle the shape in the group that is the most similar to the one given. There are four problems to complete.
Lesson Plan
Curated OER

Folding Shapes; Are the Sides the Same?

For Teachers 2nd
Second graders explore geometry by experimenting with fold-ables. In this geometric shapes lesson plan, 2nd graders utilize cutout shapes from construction paper which they experiment with by folding. Students examine the symmetry and...
Interactive
Curated OER

Ten Multiple-Choice Circle Problems

For Students 9th - 10th
In this circle worksheet, 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...
Worksheet
Curated OER

Geometry--Symmetry

For Students 2nd - 3rd
In this symmetry worksheet, students identify and circle the shapes that are symmetrical in a set. There are four multiple choice questions.
Lesson Plan
Curated OER

Shapes

For Teachers K - 2nd
For this early childhood math worksheet, students practice distinguishing shapes as they match the square, triangle, circle, pyramid, and cube shapes to the appropriate names in the right-had column.
Lesson Plan
Curated OER

Two-Dimensional and Three-Dimensional Shapes

For Teachers 1st
First graders explore 2-dimensional and 3-dimensional shapes. In this geometry lesson, 1st graders examine the attributes of 2 -dimensional and 3-dimensional shapes. They also create the shapes as they build models. This lesson...
Lesson Plan
Curated OER

Geometry Journal: Classifying Solids

For Teachers 10th
In this geometry worksheet, 10th graders respond to journal prompts related to prisms and classifying solid shapes.  The two page worksheet contains nine questions.  Answers are included. 
Worksheet
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Solid Shapes

For Students 3rd - 4th
In this solid shapes worksheet, students read descriptions of solid shapes, then label a set of pictures with either box, cylinder, pyramid or cone. 
Lesson Plan
Curated OER

Circles and Pi

For Teachers 9th - 11th
Students identify the relationship between the radius and Pi. In this geometry lesson, students calculate the circumference and area of a circle. They create visuals to help them see how the circumference relates to Pi.
Lesson Plan
Curated OER

Review Geometry Week

For Teachers 5th
Fifth graders participate in a review game of geometry topics. In this geometry lesson plan, 5th graders use the "Eggspert" interactive classroom game system to review the geometry skills taught that week. Students work in teams to...
Worksheet
Curated OER

Word Search Y4 - Shape

For Students 4th
In this geometry worksheet, 4th graders find 13 words in a word search puzzle. They find words such as convex, prism, cylindrical, and cone which are placed diagonally, vertically, or horizontally in the puzzle.
Lesson Plan
Curated OER

Circles

For Teachers 10th
Tenth graders explore and define the radius and diameter of a circle. In this geometry lesson, 10th graders calculate the circumference and area of a circle using real world objects and shapes. They discuss chords and lines tangent...
Lesson Plan
Curated OER

Secrets of Painting

For Teachers K - 4th
Students explore colors and shapes. In this art concepts lesson plan, students discuss shapes, lines, and color while creating a variety of abstract designs. The instructions for several art activities are provided. Basic art vocabulary...
Lesson Plan
Curated OER

Hello My Name is . . . Helvetica

For Teachers Pre-K - 1st
Students play various games to help create a classroom community. In this name recognition lesson, students combine their name recognition skills with newly learned art and geometric vocabulary. First students discover vocabulary that...