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Curated OER
Let the Matrix Do It
Students create a matrix of the vertices of a triangle and produce new matrices that dilate, translate, rotate, and reflect the original triangle. After multiplying each matrix by a new scale factor, they graph the new matrix and...
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The Closer I Get To You
Pupils explore the law of reflection. Through experimentation and problem solving, they collect and analyze data pertaining to reflection. The data is plotted on a graph and formulas for calculating the x and y values are evaluated.
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Exploring the Properties of Rectangular Prisms.
Pupils define properties of rectangular prisms. In this geometry instructional activity, students identify the relationship between two and three dimensional objects. They use Cabri technology to graph their figures.
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Model Storage Facility
Students design a storage facility that can withstand extreme wind loads. In this physics lesson, students decide how to build their facility considering budget constraints. They evaluate their design and present it to class.
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Quiz 4: Derivative
In this derivative worksheet, students determine the derivative of given functions. They find an equation of a line which is tangent to a given graph and identify an equation of a line which is perpendicular to the graph. This two-page...
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Triangle Fundamentals Homework
In this geometry worksheet, students identify the missing angles of non right triangles using the angle sum theorem. They solve for the unknown using algebra. There are 21 questions.
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The Area of a Triangle
In this area of a triangle activity, students solve 30 problems in which the area of triangles are calculated. There is instruction on the page. This is intended for on-line use but can be done on paper.
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Mapping the Ocean Floor
Students study the bottom structure of underwater habitats and how they can be mapped.
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What a Site!
Fourth graders are introduced to how to properly create a grid site. In groups, they use Cartesian coordinates to establish the boundaries for the grid and photograph the location of artifacts. They exchange their photos with another...
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Exercise 23--the Regular Pentagon on a Given Side
Learners examine and study how to recognize the characteristics of a regular pentagon and demonstrate how to construct one. They become aware of associating a regular pentagon to its term of a double map and practice the concept of line...
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Best Practices in Technology Integration
Learners go through various construction techniques needed to bisect angles, lines and arcs, construct a perpendicular from a vertex to a line, construct the center of a circle, transfer an angle, and various other constructions normally...
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Video Umpires
Students play umpire in a baseball game. They video the umpire's calls and then examine the accuracy of a "line call" when compared to a taped record of a ball's exact impact location. They create a transcript of a fictional court case...
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Map Field of Current
Students determine that moving charges create a magnetic field. They discover that the speed and direction of motion, the amount of charge, and the deflection angle observed are closely linked. A voltmeter, pendulum, and a constructed...
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Ways to See the Sun
Students examine how the regions of the Sun are studied using spectroscopy. They investigate the electromagnetic spectrum and the types of radiation that are associated with it. They use prisms and CD's to examine the light spectrum....
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Exploring Geometric Constructions of Parabolas
Learners are introduced to the construction geometrically of parabolas. Using a software program, they identify lines, segments and midpoints. They label the parabolas properties and characteristics and use a formula to determine the...
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Aerodynamic drag
High schoolers construct a device that can launch spinning balls. One example would be a mailing tube with one side partially cut away, lined with sandpaper. Styrofoam balls should be used for the greatest effet. They are explained how a...
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Parallax
Students discover how astronomers used the diameter of the Earth's orbit around the Sun as a baseline for estimating the distance of some stars, and the meaning of "Parsec" and "light year."
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Math: Equal Area Triangles
Students examine a math worksheet and determine how to divide a single triangle into four of equal area. Using geometric principles, they sketch two additional ways to divide into into four equal triangles. To conclude, students...
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Scarecrow
Students incorporate paper crafting techniques combined with sticks. They use burlap and buttons to give themselves plenty of room for self expression when creating these not so scary scarecrows. They line the finished scarecrows on...
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Similar or Not?
Fifth graders define the meaning of similar and congruent using concrete objects. They make similar and congruent figures using geoboards. They draw their figures on dot paper, and color their designs.
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Eye From the Sky
Young scholars are introduced to the concept of aerial perspective and scale. Students will use satellite technology to view their neighborhoods and sketch the area surrounding their schools. They will take part in a neighborhood walk to...
Lockport City School District
Reasons for Geometric Statement/Reason Proofs
Stuck trying to remember the formal language of a geometric proof? Never fear, this handout has them all ready to go. The reasons are sectioned by topic so this handy guide is ready when you are to tackle those two column proofs.
Illustrative Mathematics
Area of a Trapezoid
Here is a straightforward example of how to apply the Pythagorean Theorem to find an unknown side-length of a trapezoid. Commentary gives additional information on proving that the inside of the trapezoid is a rectangle, but is...
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Sentence Completion 8
Review context clues with your young readers using this helpful resource. Eight questions contain a missing word that pupils choose out of five options. The sentences provide ample context clues, making the choice more about test-taking...