Curated OER
Two Triangles' Area
Need an activity for teaching the Pythagorean Theorem? Geometry juniors apply the Pythagorean theorem to two triangles to determine a final calculation.
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Geo Jammin' By DeSign - Day 3, Lesson 14: Mirror, Mirror on the Wall
Students explore characteristics of symmetry, write a definition, and locate the line of symmetry on a shape.
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Geometric Transformations
Learners examine images and preimages of a mapping and identify isometry. They view images by M.C. Escher, observe teacher demonstrations, and create a translation image, a rotation image, and a dilation.
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Symmetry
Students identify the different symmetry in polygons. In this geometry lesson, students identify line, rotational and point symmetry in different objects. They find the symmetry with 90% accuracy.
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My Test Book: symmetry
In this online interactive math skills worksheet, learners solve 10 multiple choice math problems regarding symmetry. Students may view the correct answers.
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Using Symmetry to Find the Vertex of a Parabola
Learners engage in a lesson that is about finding the vertex of a parabola while using symmetry. They use the symmetry to find out where the two lines meet. The line is displayed with the help of a graphing calculator. The lesson...
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Online Interactive Math: Upper Elementary: Mixed Skills
In this online math activity, students complete a 20 problem multiple choice online interactive activity with mixed skills including geometry, rounding, and three digit multiplication.
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Graphs of Quadratic Equations
In this math worksheet, students solve the problems that ask for the graph of the parabola. They interpret the quadratic equation for its solutions.
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2D and 3D Shapes
In this geometry instructional activity, students draw 6 different shapes as requested by 6 specific directives in the circles provided. Students draw 2D and 3D shapes.
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Reflections in the Plane
Have your class explore the concept of reflections as they use Cabri Jr. to construct a triangle and reflect it over a line. Learners reflect shapes across the coordinate plane and across the lines y = x and y = -x.
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Math is Beautiful
Students explore how geometry is used on the composition of artworks by artists from different cultures. This lesson is equally suited for a Math or Art classroom at the late-elementary or early-middle school level.
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Properties of a Parabola
In this algebra worksheet, students identify the properties of a parabola. They factor and graph quadratic equations. There are 18 questions.
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Exponential Reflections
High Schoolers explore the concept of exponential reflections. They use their Ti-Nspire to reflect the natural logarithm function over the line y=x. High schoolers repeat the process using different exponential functions using a slider.
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Angles Activities
A series of geometry worksheets have mathematicians constructing, dissecting, overlapping, and measuring as they analyze angles in various contexts. Learners use symmetry and reflections in a compass rose to write instructions on...
EngageNY
Analyzing a Graph
Collaborative groups utilize their knowledge of parent functions and transformations to determine the equations associated with graphs. The graph is then related to the scenario it represents.
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Building Big and Strong
Middle and high schoolers explore the concepts of architectural rigidity. They analyze a variety of polygons, and explain why some shapes add more strength to structures than others. The PBS video, "Building Big," is utilized in this plan.
Illustrative Mathematics
Reflections and Isosceles Triangles
Geometers explore symmetries of isosceles triangles by using rigid transformations of the plane. They complete four tasks, including congruence proofs, which illustrate the relationship between congruence and rigid transformations. The...
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Transformations Using the Geometer's Sketchpad
Young scholars discover rules for single transformations, rules for composition of transformations, when a figure has transformation symmetry, and if a transformation is congruent to its preimage.
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Transformations
Several practice exercises suitable for any geometry class working on transformation, symmetry, and tessellation -- especially visual representations of image translation, rotation, and reflection, symmetry, tessellations and tangrams --...
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Parabolas
In this parabolas worksheet, 10th graders solve and complete 15 different problems related to parabolas. First, they define parabola and its information related to graphing one. Then, students write each equation in standard form. They...
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Reflections over Two Lines & Dilations
Young scholars create reflections over two lines. In this reflections worksheet, students compare and contrast reflections over parallel and intersecting lines. They dilate figures and investigate the effect of the dilation using...
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Slides, Flips. Turns......It's All On A Memory Book Page
Fourth graders use tangram sets to investigate the congruence of shapes. They use congruent shapes to demonstrate the properties of slides, flips, and turns. They complete a math journal entry that describes and illustrates each concept.
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Probability of an Event Occurring
In this probability learning exercise, students calculate the chance of an event occurring. They solve word problems using probability. There are 3 questions with an answer key.
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Old Glory
Learners utilize mathematical concepts such as: measurement, ratio and proportion and geometric probability to analyze the components of the U.S. Flag. They collect, organize and interpret data by constructing charts, tables and graphs...