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Length of an Arc and Area of a Sector

For Teachers 10th
In this length of an arc and area of a sector worksheet, 10th graders solve and complete 12 different types of problems. First, they find the length of an arc in a circle with a given radius and central angle measure. Then, students find...
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Refraction Through a Triangle

For Students 9th - 12th
In this refraction through a triangle worksheet, students use a given diagram of light striking a triangular piece of plexiglass to determine the light ray's angle of incidence, the ray's angle of refraction, they use Snell's Law to...
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Refraction Through a Circular Disk

For Students 9th - 12th
In this refraction through a circular disk worksheet, students are given a diagram of a circular disk of leaded glass with light striking it. Students use the diagram to find the angle of incidence of the light, the angle of refraction,...
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Trigonometry

For Students 10th - 12th
In this right triangles worksheet, students use trigonometric ratios to determine the length of a side of a triangle or a missing angle measurement.  This two-page worksheet contains 20 problems.
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Triangle Classificaition with Geometer's Sketchpad.

For Teachers 7th - 12th
Learners use Geometer's Sketchpad to draw triangles and explore the classificaiton of each using the mearsures of interior angles and the lengths of the sides.
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Geometry Challenge

For Teachers 5th - 7th
Students explore angle relationships and measure angles with a protractor by hand and online. They explore various websites and complete online activities and complete a worksheet.
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Pythagorean Theorem

For Teachers 8th
Eighth graders draw right triangles and identify the parts of a right triangle: right angle, interior and exterior angles, hypotenuse and legs. They predict and identify any relationships that exist between the sides of a right...
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Triangles

For Students 10th
In this triangles worksheet, 10th graders solve and complete 22 different problems related to various types of triangles. First, they name the shortest and longest sides and the smallest and largest angles in each of triangles...
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Right Triangles

For Students 10th
In this right triangles worksheet, 10th graders solve and complete 5 different types of problems. First, they solve each of the right triangles shown and express each answer correct to two decimal places. Then students find the...
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Measuring the Earth

For Teachers 9th - 12th
Students use principles of geometry to measure the circumference of the Earth. In this applied geometry lesson, students use mathematics to determine scientific information. They make measurements, calculate the central angle, and...
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Trigonometric Ratios

For Students 10th
In this geometry worksheet, 10th graders use right triangle trigonometry to find the missing angle measure or side length.  The three page worksheet contains a combination of twelve multiple choice and free response problems. ...
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Mirror Symmetry/Mirror Images

For Teachers 5th - 6th
Students explore lines of symmetry in geometric shapes. In this geometry lesson, students construct angles using mirrors and rubberbands, then predict the number of images that will appear in the reflection. Students reproduce lines of...
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Sled Kite Proportions

For Teachers 6th - 8th
Young scholars build sled kites. in this kite building lesson, students must read directions for kite building and enlarge the proportions of the given kite pattern. Young scholars focus on the angles and line of symmetry in their...
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Circles:Tangents and Chords

For Students 7th - 12th
In this circle activity, students solve classic chord-chord angle problems with the angle on, in, and outside the circle as well as chord-tangent problems. There are 20 questions. 
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Chapter 5 Final Review Extra Problems. Triangles

For Students 10th - 12th
In this triangles worksheet, students identify the median, altitude, segment, angle bisector, perpendicular bisector and triangle midsegment of triangles.  They find the perimeter of triangles.  This three-page worksheet...
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Nature's Polyhedrons

For Teachers 9th - 12th
Students discover the characteristics of polyhedra. Through hands-on activities and interactive videos, students investigate and retrieve information on polyhedra and crystal structures. Students study angles and symmetry. They...
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Particle Models

For Teachers 10th - 12th Standards
In this particle model worksheet, students solve and complete 14 various types of problems. First, they find the magnitude of the side or the angle indicated with a question mark for each triangle illustrated. Then, students find the x...
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An Uplifting Experience

For Teachers 5th
Fifth graders conduct flight experiments.  For this uplifting experience lesson, 5th graders build an airfoil and place in a variety of conditions to observe the results of lift and force in flight, as well as angle of attack....
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Basic Shapes

For Teachers 11th - 12th
Students create books about shapes.  In this shape lesson plan, students select a topic such as points, lines, angles, planes, polygons, quadrilaterals, triangles, circles, and polyhedra.  In groups, they create an illustrated...
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Tessellations Multiple Choice

For Students 7th - 9th
In this tessellations learning exercise, students answer questions about the characteristics of tessellations.  They identify polygons that will and will not tessellate.  Students determine the sum of angles in a polygon...
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New York State Math Test Grade 5

For Students 5th
In this New York State math test activity, 5th graders complete multiple choice questions on place value, angles, fractions and more. Students complete 26 problems.
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Daily Upkeep 7

For Teachers 4th
In this geometry worksheet, 4th graders complete a quick set of math activities where they first identify which portion of a model is shaded in fraction form. Then, they select which angle best describes a given angle. Finally, students...
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Reflections Of

For Teachers 4th - 6th
Students create angles using mirrors. In this angle reflection instructional activity, students draw angles, then use mirrors to create angles using reflections and measure the new angles.
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Right Triangles

For Teachers 4th - 8th
Learners classify triangles and make connections regarding angle measurements and attributes of acute, right, and obtuse triangles. They listen to teacher define and explain triangles. Everyone imagines a place where a broken wing for a...

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