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Lesson Plan
Curated OER

Equations of Circles

For Teachers 10th - 12th
Learners will define circle and radius. In this radius lesson,  students are given a circumference, they will write an equation and sketch the circle. Learners will match graphs of circles to their equations.   
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Lesson Plan
Curated OER

Shapes...the Beginning of Geometry

For Teachers K - 1st
Students identify and name basic shapes and points. In this elementary geometry lesson, students use printable cut outs to name circles, triangles, and squares before playing a game with them. They play a game of "Pin the Tail on the...
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Interactive
Curated OER

Segment Formulas Multiple Choice

For Students 10th
In this geometry worksheet, 10th graders use the theorems regarding circles and tangents to find the indicated missing segment length.  The one page interactive worksheet contains ten problems.  Answers are included. 
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Organizer
Curated OER

Chomping Word Choice

For Students 2nd - 4th
In this word choice worksheet, students put words in the circles that would be good word choice for them to use. Students put words into 11 circles.
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Worksheet
Curated OER

Arcs and Chords

For Students 9th - 10th
In this circles worksheet, students find missing arc lengths and chords.  Students also find the length of radii in three problems.
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Interactive
Curated OER

Basic Geometry Vocabulary

For Students 10th
In this geometry worksheet, 10th graders match basic vocabulary words relating to angles, circles, quadrilaterals, and transformations in a drag and drop game format.  The one page interactive worksheet contains twenty matching questions...
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Lesson Plan
Curated OER

Ara of Circles

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

Arc Length - Horse

For Teachers 9th - 12th
Learners define an arc and calculate its length. In this geometry lesson, students find examples of arc in the real world. They show their understanding of arcs through problem solving.
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Lesson Plan
Curated OER

Can You Canula?

For Teachers 8th - 9th
Students calculate the circumference of a circle. In this geometry lesson, students measure the diameter of a circle using micrometers or calipers. They investigate the relationship of the diameter to that of the value of Pi.
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Lesson Plan
Curated OER

Creating a Basal Area Measuring Tape

For Teachers 9th - 12th
Young scholars use formulas to design and create a table.  In this calculations lesson students create basal measuring tapes that will be used to measure woodlot stocking levels. 
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Lesson Plan
Curated OER

Consistent Circles

For Teachers 8th - 12th
Students create a design of a circle. In this geometry lesson, students identify the measure of the diameter and radius of a circle. They graph and analyze their collected data and write equations based on direct variation.
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Lesson Plan
Curated OER

Double, Double: Looking at the Effect of Change on Perimeter, Area and Volume

For Teachers 9th - Higher Ed
Students explore perimeter, volume, and area. In this math lesson, students explore how changes in dimensions of geometric shapes affect the perimeter, area and volume of the various shapes. Students investigate the results when the...
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Worksheet
Curated OER

Chapter 6: Geometry Perimeter and Area

For Students 10th - 12th
In this perimeter and area instructional activity, students find the perimeter of various polygons.  They compute the perimeter, surface area, circumference, and volume of given figures.  Students explore trigonometric ratios.  This...
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Worksheet
Curated OER

Count to 3

For Students K
In this counting to 3 worksheet, students count rectangles and circles up to the number 3. Students complete 2 problems where they count shapes on this worksheet.
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Worksheet
Curated OER

Counting Exercise

For Students Pre-K - 1st
For this counting worksheet, students count circles and triangles up to the number 5. Students complete 2 problems total on this worksheet.
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Interactive
Curated OER

Geometry

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

Fractions

For Students K
In this fractions instructional activity, students analyze 3 fraction expressions. Students choose which multiple choice division represents the part that each arrow is pointing to. Students check off each of their choices.
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Worksheet
Curated OER

Circumference and Area

For Students 6th
In this circumference and area activity, 6th graders find the circumference and area of circles when the diameter is given. Students complete 9 problems.
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Worksheet
Curated OER

Circumference and Area

For Students 4th - 6th
In this circumference and area worksheet, students find each for a set of 9 circles. A website reference for additional activities is given.
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Lesson Plan
Curated OER

Finding the Basal Area of a Forest Plot to Determine Stocking Levels

For Teachers 9th - 12th
Learners use graphs and plots to measure the basal area and stocking levels.  In this graphing instructional activity students work in the field the use their data to help them complete a lab activity. 
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Worksheet
Curated OER

Conic Sections

For Students 11th
In this Algebra II worksheet, 11th graders solve problems involving ellipses, parabolas, circles, and hyperbolas.  The one page worksheet contains nineteen problems.  Answers are included. 
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Worksheet
Curated OER

Geometry Regents Bimodal

For Students 9th - 10th
In this geometry worksheet, students solve problems that are bimodal. They define properties of circles and triangles. There are 117 questions.
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Lesson Plan
Curated OER

Compound Locus

For Teachers 7th - 10th
Learners investigate circles and compound locus. In this geometry lesson, students identify the distance from a point to a line. They use Cabri software to create lines and circles.
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Lesson Plan
Curated OER

Area of Triangle using the Semi-Perimeter and Radius

For Teachers 8th - 10th
Learners investigate the properties of circles. In this geometry activity, students calculate the area and perimeter of a triangle. They identify the perimeter and radius length of a circle.