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Curated OER
Tessellations Homework
In this tessellation worksheet, students draw tessellations using specified figures. This one page worksheet contains five multi-step problems.
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Scaling Down the Pyramids
Learners construct three-dimensional models of the three pyramids at Giza. They research the building of the pyramids and record the height, base and angle measurements of each pyramid. They create a file of facts regarding the pyramids.
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Picking Pythagoras
Students discover that side measurement is used in determining angle classification of a triangle. By squaring sides, they predict whether triangles be right, obtuse, or acute. They prove the Pythagorean Theorem and use it to solve...
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Phenomenological Pizza
Students explore measurement in terms of pizza toppings. In this math lesson plan, students draw a circle using string and a ruler, determine areas of different size circles, find how many two topping pizzas can be made using 14...
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Cabri Jr. Perpendicular Bisector of a Chord
Your learners will construct the perpendicular bisector of a chord. They use Cabri Jr. to construct a circle and a perpendicular bisector of a chord. They then measure lengths of the chords and perpendicular bisectors. Learners use...
Curated OER
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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Indirectly Direct
Student form and test hyptheses using indirect and direct observation. They launch marbles to determine the shape of a hidden object.
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Magazine Holder
Students investigate ways to save our environment by creating a recycled product. In this sustainable materials lesson, students create a magazine holder by recycling a large cardboard box and gift wrap or wallpaper. Students...
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Similar Figures
In this geometry worksheet students explore similar polygons and determine measure of missing sides and angles. Students use indirect measurement with similar triangles and determine the area and volume of similar figures. The seven...
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Roadkill Museum
Students use roadside kill to use taxidermy skills, become comfortable working with animals and dissecting.
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Constructing Triangles
In this constructing triangles online learning exercise, students construct thirteen triangles on paper first and then type in their answers on line. Students can check their answers as they go and the computer calculates the overall...
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Slingshot Characterization Experiment
Students set up and conduct a scientific experiment to demonstrate data collection. In this scientific process instructional activity, students complete an activity with the specific objective of using a slingshot to fire a t-shirt into...
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AC Phase
In this AC phase worksheet, students answer 24 questions about AC and DC voltages, phasor diagrams, sine wave graphs and Lissajous figures.
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Investigating Segments in a Right Triangle
High schoolers explore the concept of right triangles as they construct a right triangle using Cabri Jr. Learners find the midpoint of the hypotenuse and construct a line from the midpoint to the vertex of the right angle. They then...
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Algebra 2 & Trigonometry Practice: Law of Sines
In this law of sines worksheet, high schoolers solve 9 multiple choice and short answer problems. Students use the law of sines to missing side lengths and angles of triangles.
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Triangle Inequalities Homework
In this geometry activity, students solve problems based on the triangle inequality theorem(s) in which determine if the given lengths can form a triangle, given two sides of a triangle determine the range of the third side, and order...
Texas Instruments
Investigating Segments in a Quadrilateral
Investigate the properties of the shape formed by connecting the midpoints of adjacent sides of a quadrilateral. In this properties of the shape formed by connecting the midpoints of adjacent sides of a quadrilateral lesson, students use...
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Introduction to Fractals: Geometric Fractals
Students study and observe the patterns made by the areas of the Sierpinski Triangle. Students use the computer to draw two or three iterations to discover the number patterns. Students complete worksheets based on Geometric Fractals.
Texas Instruments
REAL LIFE REAL WORLD Activity - Surveyor
Learners investigate surveying in this secondary mathematics lesson. They will explore a real world application of geometry and trigonometry as they create a plot plan using a geometry utility and calculate the area of the land parcel.
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What did I find?
Students excavate an artifact. In this archaeology lesson, students get a bucket filled with dirt and a broken up artifact. They work in groups to take it out and to find what its purpose was.
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The Three Little Pigs' Straw House
Second graders design and sketch a model house. For this technology lesson, 2nd graders construct their house using teacher provided materials. They present their finished project and explain their design in class.
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Pythagorean Theorem by Graphic Manipulation
There are many different ways to show a proof of the Pythagorean Theorem. Here is a nice hands-on paper cutting activity that shows a graphic representation. You can even challenge your young Pythagoreans to come up with their own...
EngageNY
Review of the Assumptions (part 2)
Is the amount of information getting overwhelming for your geometry classes? Use this strategy as a way to organize information. The resource provides a handout of information studied in relation to triangle congruence. It includes a...
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Creating Circles
Students make a circle graph. In this graphing instructional activity, the teacher conducts a class survey, then demonstrates how to make a pie graph. When students are comfortable with the material, they use a worksheet to create their...