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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 to a...
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Lesson Plan
Curated OER

Geometry in the Real World

For Teachers 8th
Eighth graders complete a unit of lessons on basic geometry concepts. They participate in a variety of activities, culminating in a project that involves publishing a booklet or a poster that presents the major geometry concepts from the...
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Worksheet
Curated OER

Cartesian Geometry

For Students 9th - 11th
In this geometry worksheet, students plot coordinate pairs and connect the points to create different shapes. They give th shapes its polygon's name. They differentiate between simple functions and rectangular hyperbola.
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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 instructional activity, 6th graders complete four activities using geoboards or dot paper including naming points on a coordinate plan and...
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Worksheet
Curated OER

Solve Word Problems with Geometry

For Students 7th - 12th
In this geometry worksheet, students solve word problems having to do with lines, angles, shapes, area, perimeter, and more. Students complete 57 problems total.
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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.
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Worksheet
Curated OER

Comparisons with Circles

For Students 8th - 10th
In this geometry learning exercise, students are asked to solve fractions using circles. They divide the circles into different parts and use inequality symbols to identify the parts needed. There are 36 problems dealing with fractions.
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Lesson Plan
Curated OER

Special Triangles and Circles

For Teachers 9th - 11th
Students investigate special triangles and circles. In this geometry lesson, students construct a perpendicular bisector and discuss angles of a triangle. They find the angle bisectors, vetex and the types of circle constructed.
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Lesson Plan
Curated OER

Finding Areas of Triangles, Rectangles, and Circles

For Teachers 9th - 10th
Students find the areas of geometric shapes. In this geometry lesson plan students find and measure the sides, perimeters, and areas of quadrilaterals, triangles, and circles. Students relate the measures to the others by using formulas.
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Lesson Plan
Curated OER

Geometry Center Games

For Teachers 1st
First graders explore eight geometry activities that improve understanding of positional words and shapes. They identify, describe, and create simple geometric figures. They help another student who may not understand the concept yet.
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Lesson Plan
Curated OER

Kindergarten: Geometry in Our World (Centers)

For Teachers K
Students identify attributes in real-life objects and models of solids and connect these attributes to characteristics of shapes such as circles, triangles, squares, and other rectangles. They discuss the ability of the object to roll,...
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Worksheet
Curated OER

Area of a Circle

For Students 10th
For this geometry worksheet, 10th graders are asked to calculate the area of a circle given the radius of the circle. There is an answer key for these 9 problems.
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Lesson Plan
Curated OER

To the Moon

For Teachers 6th - 12th Standards
Pupils explore circumference manipulating Moon Pie wrapper. In this geometry lesson, they manipulate snack wrappers to find circumference, diameter, radius and distance.
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Worksheet
Curated OER

Semicircles

For Students 10th
In this geometry worksheet, 10th graders are presented with a problem involving semicircles.  The diagram appears simple, though it turns out to have a many segments to be labeled with variables.  The key to solving the problem is...
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Worksheet
Curated OER

Segment Formulas Homework

For Students 9th - 12th
In this geometry worksheet, students examine three different diagrams and apply the appropriate formulas to each of the following situations: two chords, a tangent and a secant, and two secants. There are 17 questions to solve for the...
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Worksheet
Curated OER

Trace, Color, and Draw Circles

For Students Pre-K
In this geometry worksheet, students trace the dots to form a circle, color the circles that are part of a caterpillar picture, and independently draw a circle.
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Lesson Plan
Curated OER

Geometry Practice: Classifying Solids #2

For Teachers 7th - 9th
For this solids worksheet, students identify the characteristics of solids. They name solids and determine the number of faces. This three-page worksheet contains seventeen problems. Answers are listed on the last page.
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Worksheet
Curated OER

Making Two-Dimensional Shapes

For Students Pre-K - 1st
Use this introductory geometry worksheet as a projected warm-up for your class, doing it together and then revealing the explanation on the bottom half. Learners examine a square and a circle, each bisected by a dotted line. They must...
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Worksheet
Curated OER

MCC - 1106 Word Search

For Students 9th - 10th
Use this geometry instructional activity to have learners locate and identify various vocabulary terms related to mathematics. There are seven words/phrases located in the puzzle.
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Worksheet
Curated OER

Geometry Level 3

For Students 7th - 9th Standards
What a wonderful resource! Learners create two-dimensional shapes according to the instructions stated, use the squares to make a triangular prism, a cube, and a pyramid, and identify features of plane shapes, among a myriad of other...
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Lesson Plan
Curated OER

The Circle's Measure

For Teachers 3rd - 7th
Students explore circumference and diameter. For this math lesson, students apply their knowledge of circumference and diameter to solve mathematical riddles. Students apply this knowledge to find circumference and diameter of various...
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Lesson Plan
Curated OER

Relationships Among Arc and Angle Measures in Circles

For Teachers 9th - 12th
Students follow the directions on the attached worksheet to construct shapes using Geometer's Sketchpad. To start the lesson, it is suggested that the teacher guide the students through the initial problem. When constructions are...
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Worksheet
Curated OER

Geometry and Triangles

For Students 11th - Higher Ed
In this geometry triangles worksheet, students first determine how many degrees are found in one half and in three-fifths a revolution. Then they find the supplement of the two angles given and the radius of a circle. Students also...
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Lesson Plan
Curated OER

Taxicab Metric, Circle

For Teachers 7th - 8th
Students create a circle using the taxi-cab metric. In this geometry lesson, students identify the properties of circles. They identify the idea of geometric shapes and how they come about.

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