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My Test Book: symmetry

For Students 3rd - 4th
In this online interactive math skills worksheet, learners solve 10 multiple choice math problems regarding symmetry. Students may view the correct answers.
Worksheet
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Geometric Planes

For Students 10th
In this geometry worksheet, 10th graders determine that if two planes are perpendicular to the same line, then they are parallel.  The one page worksheet contains one problem with the solution. 
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Find Someone

For Teachers 2nd - 7th
Your class will participate in a series of math vocabulary activities to learn about parallel lines. They find people using a math list and connect math words in the context of sentences. They also read the math words in the example...
Lesson Plan
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Orthocenter Of a Triangle

For Teachers 8th - 10th
Students find the orthocenter of a triangle. In this geometry lesson, students identify where the altitudes meet in a triangle. They use Cabri software to explore acute, obtuse and right triangles.
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Composition of Reflections

For Teachers 9th - 10th
Young scholars perform reflections and translations of polygons. In this geometry instructional activity, students perform reflection in two parallel lines. They use Cabri to observe the transformation and rotations of each shape.
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Compound Locus

For Teachers 7th - 10th
Students 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.
Lesson Plan
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Constructing Midsegments of Triangles

For Teachers 9th - 10th
Students construct midsegments. In this geometry lesson, students make conjectures and apply properties of triangles to solve problems. They complete an activity on the computer.
Lesson Plan
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Circumscribed Polygons

For Teachers 9th - 10th
Students investigate polygons and construct ferris wheels. In this geometry instructional activity, students create a circle and differentiate properties of circles and polygons. They compare the relationship between angles and...
Lesson Plan
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Investigating a Point on an ANgles Bisector

For Teachers 7th - 9th
Students investigate points and angle bisectors. In this geometry instructional activity, students define angles, bisectors and perpendicular bisectors. They analyze angles and bisectors using Cabri software.
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Isosceles Triangles

For Teachers 9th - 10th
Students identify the properties of an isosceles triangle. In this geometry lesson plan, students find the midpoint, median and angle bisector of a triangle. They construct angle bisectors and measure missing angles.
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Triangle Exterior Angles Theorem

For Teachers 7th - 9th
Students identify the measure of missing exterior angles. In this geometry lesson,students define and apply the exterior angle theorem to solve problems. They use Cabri software to create different angles and make investigations.
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Exploring Geometric Mean

For Teachers 8th - 10th
Students solve problems using geometric means. In this geometry lesson plan, students create altitudes in right triangles. They use Cabri software to move the triangle around and observe different sides and angles.
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Exploring Geometric Mean

For Teachers 8th - 10th
Student identify the solution using geometric mean. In this geometry lesson, students create right triangles where the altitude of the triangle is the side containing the right angle. They modify shapes using Cabri software and observe...
Lesson Plan
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Incenter of a Triangle

For Teachers 10th
Tenth graders find the incenter of a triangle. In this geometry lesson, 10th graders define the way to create an incenter with an angle bisector. They differentiate between incenter and incircle.
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Triangle Side Lengths and Angles Measures

For Teachers 9th - 10th
Learners identify missing sides and angles. In this geometry lesson, students use triangular theorems to identify the missing sides. They use the Pythagorean Theorem to find the different ratios of each side.
Lesson Plan
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Discovering The Ratio Pi And The Diameter

For Teachers 9th - 10th
Students relate the ratio of Pi to the diameter of a circle. For this geometry lesson, students investigate the relationship of the chord of the circle the the number Pi. They define ration, chord, circumference and diameter and find...
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Secant and Secant Segments

For Teachers 9th - 10th
Students use the secant and secant segment theorem to solve problems. In this calculus lesson, students identify where the secant line crosses on a circle. They create circles and secants using cabri software.
Worksheet
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Geometric Proof and Angles

For Students 10th
In this geometry activity, 10th graders write two-column and paragraph proofs to prove angle pair relationships.  The one page activity contains five problems.  Answers are not included. 
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Bisectors of Triangles

For Teachers 10th
In this geometry worksheet, 10th graders solve problems involving the perpendicular bisectors and angle bisectors of a triangle and their points of concurrency.  The one page worksheet contains sixteen questions.  Answers...
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Circle Conjectures

For Teachers 9th - 11th Standards
Students are given diagrams and are asked to make a conjecture. In this geometry lesson, students make conjectures of circles. They complete a lab activity to reinforce making conjectures. The first activity addresses a common core...
Lesson Plan
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Conjectures of Intersecting Circles

For Teachers 9th - 10th
Students make conjectures of intersecting circles. In this geometry lesson plan, students observe circles and their position in space. They investigate and observe two and three dimensional objects.
Lesson Plan
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Circle, Secants

For Teachers 9th - 11th
Students 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.
Lesson Plan
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Inscribed Angles

For Teachers 9th - 10th
Students calculate the inscribed angle of a triangle. In this geometry lesson, students identify the angle created by intersection of a triangle and a circle. They see the relationship between the arc and the angle.
Lesson Plan
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Exploring the Properties of Rectangular Prisms.

For Teachers 9th - 10th
Learners define properties of rectangular prisms. In this geometry lesson, students identify the relationship between two and three dimensional objects. They use Cabri technology to graph their figures.

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