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Vertical Tower 2
In this trigonometry instructional activity, students prove that for the given conditions of the problem that cos y = cos2 x. The one page instructional activity contains one problem with the solution.
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Constructing Parallel Lines
Students construct parallel lines using a protractor and a straightedge. In this geometry activity, students identify the properties of parallel lines. They use Cabri to graph and observe the lines.
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Incenter of a Triangle
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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Triangles with Collinear Circumcenters
Students identify the circumcenter of a triangle. In this geometry lesson, students construct a perpendicular bisector using a straight edge and a compass. They differentiate between triangles and collinear points.
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Area of Triangle using the Semi-Perimeter and Radius
Students investigate the properties of circles. For this geometry lesson, students calculate the area and perimeter of a triangle. They identify the perimeter and radius length of a circle.
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Inscribed Angles
Students calculate the inscribed angle of a triangle. In this geometry instructional activity, students identify the angle created by intersection of a triangle and a circle. They see the relationship between the arc and the angle.
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Secant and Secant Segments
Learners use the secant and secant segment theorem to solve problems. In this calculus instructional activity, students identify where the secant line crosses on a circle. They create circles and secants using cabri software.
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Properties of Special Parallelograms
Students identify properties of trapezoids. In this geometry lesson, students are put into groups and use computer programs to analyze polygons. They drag and move the shapes around as they make predictions.
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Properties of Special Parallelograms
Students identify properties of parallelograms. In this geometry lesson, students label polygons as parallelogram or not. They define and label the properties of a kite.
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Recipes and Ratios
Young scholars use ratio and proportions to adjust recipe size. In this middle school mathematics lesson, students investigate Native American food and adjust the recipe size for said foods to the number of servings needed to feed...
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Distance in Space
Sixth graders explore space science by measuring distances between planets. In this solar system lesson, 6th graders view a Bill Nye video and discover the conversion between the metric system and imperial measuring systems. Students...
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Roman Numerals
Fourth graders examine the Roman numeral system. In this Roman numeral lesson, 4th graders study how the symbols used in the Roman numeral system correlate to counting numbers. They detail the uses of the numbers such as in dates, for...
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Special Edition: World Space Congress 2002: The New Face of Space
Students experience and study how space offers expanding resources for commerce, science, technology and education. They view how advances in space can and do improve life on Earth. Each student views a geological exploration within this...
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Geometry: Helix-a-Graph
Students use geometry to create art. In this geometric graphing and patterns lesson, students create a helix-a-graph by plotting points on a grid that follow a certain pattern and analyze the drawing they created.
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Primates
Students explore different primates. For this primate lesson, students examine the various primates by engaging in crafts, dramatic play, singing songs, and games.
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Traditional American Indian Lodges
Students explore the mathematical properties of traditional American Indian lodges. They examine the effect of increasing sides of a polygon, calculate the surface area of prisms and cylinders, and construct a classroom size pyramid...
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Rocket Riot
Students form "companies" of 3-4 students and build bottle rockets for analysis and experiment. This lesson uses NASA's RcketModeler Version 1.2 rocket simulator to evaluate each rocket's flight.
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Perpendicular Segments in a Circle
High schoolers explore the concept of circles as they construct a circle using a program such as Cabri Jr. Learners construct a chord and a diameter that are perpendicular, then measure the bisected chord and notice that both sides of...
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Sight
Students discover how the sense of sight helps us recognize each other and explore color, motion and distance.
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A World of Symmetry
Middle schoolers identify lines of symmetry. In this symmetry lesson, students create objects and identify their lines of symmetry. They answer questions about lines of symmetry. Middle schoolers cut shapes out of...
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Measuring the Earth
High schoolers use principles of geometry to measure the circumference of the Earth. For this applied geometry lesson, students use mathematics to determine scientific information. They make measurements, calculate the central...
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Trigonometry Triangles
In this trig worksheet, 11th graders investigate the 6 trigonometry identities and their cofunctions. They use them to solve trig problems as related to right triangles. There are 5 questions with an answer key.
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Spinning Probability
Sixth graders study the concept of probability. In this probability lesson, 6th graders create spinners that match specific sets of clues. Students use their spinners and worksheets to explore and predict probability.
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Native American Pebble and Pot Game
Students participate in a game using 12 manipulatives. In this addition and subtraction instructional activity students play a game originated by the Native Americans and look at a number of items and calculate how many...