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Measuring Supporting Structures
Students calculate the volume of the Pantheon's columns and estimate changes in weight given different parameters.
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Exploring the Witch of Agnesi
students construct the graph of the Witch of Agnesi, and investigate both its asymptotes and inflection points. They construct the graph of the Witch of Agnesi and conjecture the asymptotes and inflection points of the function. ...
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Exploring Trigonometric Functions
Learners are introduced to the characteristics of trigonometric functions. In groups, they analyze graphs of sine and cosine to determine the lengths of a triangle. They compare and contrast the graphical and numerical characteristics...
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Exploring Trigonometric Ratios
Students identify the ratios of trig functions. In this trigonometry instructional activity, students construct triangles and use it to derive the values of sine, cosine and tangent. They use Cabri software to create the visual of the...
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The Minimal Distance Point from the Vertices of a Triangle
Students calculate the distance from the vertex of a triangle to the center. In this geometry activity, students find the shortest distance between a point and the vertex of a triangle. They relate this concept of distance to the real...
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Inscribed Angles
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.
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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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Investigating Pythagorean Triples
Learners investigate and solve Pythagorean triples. In this geometry activity, students find the missing sides and angles of a right triangle. They graph right triangles and move the sides around to create different angles.
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Investigating the Pythagorean Triples
Students investigate the Pythagorean triples. In this geometry lesson, students solve for different parts of a right triangle. They identify the missing side or angle using the pythagorean theorem.
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The Great Button Sort
Students practice figuring out how items have been sorted. They also sort buttons in small cooperative groups. They color and sort their own paper buttons and then give their button sort to another student to see if he or she can figure...
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Tessellations: An Application of Simple Regular Polygons
Tenth graders identify homogeneous tessellations. In this model-based lesson, 10th graders make and identify homogeneous tessellations, both regular and semi-regular.
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Introduction to Field Mapping with a Compass and Pace
Students practice using compass and calibrate their own pace, take field measurements of pre-set course with compass and pace, convert measurements into map, using angles and vectors, and make composite class map by adjusting different...
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Lines, Rays, Line Segments, and Planes
Students are introduced to lines, rays, line segments and planes and study the differences between them. They also practice graphing lines, rays, line segments and planes
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Parks Design Project
Pupils explore two dimensional geometric figures. They explore the relationships and measurements of geometric figures. Students apply proportion and scaling. They design a city park for pupils and teenagers.
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Geometry in Tessellations
Students examine tessellations and their geometric properties. Students also develop a better understanding of lines, planes, angles, and polygons.
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Geometry in the Heavens
Ninth graders access a star worksheet and determine properties of polygons. In this investigative lesson students complete a worksheet and discuss myths.
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Introduction to Curve Stitching - Line Designs
Students develop their awareness that straight line segments can produce the illusion of a curve and helps them recognize and describe number patterns and geometric fundamentals.
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Around and Around We Go
Fourth graders discover that a polygon is a closed figure formed by line segments, and that the perimeter of a polygon is the sum of the lengths of its sides. They utilize a worksheet imbedded in this plan to gain lots of practice with...
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Measurement Crafts- Cereal Hands and Feet
Students identify nonstandard units of measurement and investigate area of objects. In this geometry instructional activity, students trace their hands and glue cereal pieces to the print to find the area.
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Midpoint of a Segment
Learners revisit midpoint and segments by graphing on the TI or computer. This activity can be done with pencil and paper, but is more interactive if it is done on a TI-navigator.
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How Machines Help Us Stay Healthy
Students visit different departments at a local hospital to see how machines help peoples such as the CAT scan machine. They build a model of such a machine that shows how patients are moved in and out of the machine.
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Woody Sine
Students explore the concept of sine. In this sine lesson, students create a sine graph from tooth picks. Students create a unit circle with tooth pick length radius. Students then take the tooth picks from the unit circle and put them...
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Surface Area and Volume
Students are introduced to the notion of surface area and volume, learn the terminology used with surface area and volume and have experimented with the surface area and volume of different prisms.
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Bodacious Buttons
First graders participate in games, graphing, and probability exercises to sort and graph buttons. They sort buttons with Venn diagrams and Bull's Eye graphs.