Curated OER
Finding the Area of an Equilateral Triangle
The problem seems simple: find the area of the equilateral triangle whose sides are each length 1. In fact, this same problem is solved in 8th grade, addressing a different Common Core standard, using the formula for area of a triangle...
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Global Positioning System I
Geometry learners touch the surface of how a global positioning system works. The end goal is to find the intersections of three different spheres geometrically and algebraically given their algebraic representations.
Government of Hong Kong
Areas and Volumes - 2D Shapes
Unfortunately for young mathematicians, the world isn't made entirely of parallelograms, triangles, and trapezoids. After first learning the area formulas for these common shapes, students apply this new knowledge to...
Illustrative Mathematics
Equal Area Triangles on the Same Base II
A deceptively simple question setup leads to a number of attack methods and a surprisingly sophisticated solution set in this open-ended problem. Young geometers of different strengths can go about defining the solutions graphically,...
Curated OER
Math Games for Skills and Concepts
A 27-page packet full of math games and activities builds on algebra, measurement, geometry, fractional, and graphing skills. Young mathematicians participate in math games collaboratively, promoting teamwork and skills practice.
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Geometry
In this geometry learning exercise, students utilize mathematical strategies to figure out which of four lines are vertical, horizontal and/or parallel.
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Geometry - Congruent Figures
In this geometry worksheet, students see two congruent figures. They match the corresponding parts by writing their labels in the 3 boxes at the bottom of the page.
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Duplicating Segments and Angles
Tenth graders investigate geometric construction. In this geometry lesson, 10th graders explore the procedure for copying an angle and a segment. The lesson emphasizes the difference between a sketch, a drawing, and a...
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Applications of Properties of Quadrilaterals in the Coordinate Plane
High schoolers explore the concept of quadrilaterals. In this quadrilaterals lesson, students use the slope formula, midpoint formula, and distance formula to justify that a given quadrilateral is a parallelogram.
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Geo Jammin' By DeSign - Day 1, Lesson 2: Dancing Duo
Second graders and teachers identify geometric vocabulary word by searching a geometry website. They create a Quilt Word Wall using the geometry words.
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Perimeter – Calculate in Units
In this geometry skills practice worksheet, students solve 4 problems that require them calculate the perimeter of 4 geometric figures.
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Geometric Shapes at the OK Corral
Students explore geometry by utilizing computer software. In this shape identification lesson, students define several geometric shapes by the characteristics that classify them. Students draw and cut out geometric shapes using their...
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Triangles Introduction
Students explore geometry by drawing various shapes in class. In this triangle characteristics lesson, students identify the attributes that classify a shape as a triangle and practice using their bodies to create triangles in class....
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It's a Ball, It's a Sphere ... No, It's a Dodecahedron
Third graders construct a dodecahedron that displays facts about two and three-dimensional figures. They use a pattern to construct a dodecahedron after writing facts about geometry onto each of the figure's twelve faces.
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Plotting Coordinates
In this geometry skills worksheet, students plot the listed coordinates on the provided graphs in order to identify the appropriate shapes.
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Area – Parallelograms and Trapezoids
In this geometry skills worksheet, students solve 4 problems that require them to calculate the area of parallelograms and trapezoids.
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Parts of the Circle
In this geometry skills worksheet, middle schoolers respond to 3 questions that require them to examine the part of circles and identify them as diameters, chords, radii, or centers.
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Parts of the Circle
In this geometry skills worksheet, students examine 3 labeled circles and identify the noted items as diameters, chords, radii, or centers.
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Match the Shape
In this geometry skills practice instructional activity, students respond to 4 questions that require them to match everyday items as the geometric shapes they represent.
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Regular or Irregular Polygons
In this geometry skills learning exercise, students respond to 6 questions that require determine whether 6 geometric shapes are regular or irregular polygons.
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Side Lengths of Similar Shapes
In this geometry skills learning exercise, students examine 4 pairs of similar shapes and use their problem solving skills and the information provided to calculate the length of segments.
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Calculate the Area of Compound Figures
For this geometry skills worksheet, students respond to 4 questions that require them to calculate the area of compound figures.
Curated OER
Calculate Perimeter
For this geometry skills worksheet, students solve 8 problems that require them to calculate the perimeter of 8 geometric shapes. Students show their work in the space provided.
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Calculate Volume
In this geometry skills worksheet, learners examine 3 figures and the information regarding them in order to calculate the volume of each of them.
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