Curated OER
Puzzled?
First graders practice identifying simple geometric shapes. As a class, they discuss positional words and review the words for simple shapes and their characteristics. They work together to create their own puzzle using the shapes.
Curated OER
The Luxor Hotel Contract
High schoolers determine the surface area of the Luxor Hotel, using the square feet of the base, volume, and the volume formula. They create a scale model of the triangular/pyramid shaped hotel.
Curated OER
Geometric Patterns and Relationships
Fifth graders explore three-dimensional figures. As a class, they discuss the characteristics of various three-dimensional figures. In groups, 5th graders write riddles describing the geometric shape. Partners read each other's...
EngageNY
Are All Parabolas Similar?
Congruence and similarity apply to functions as well as polygons. Learners examine the effects of transformations on the shape of parabolas. They determine the transformation(s) that produce similar and congruent functions.
Curated OER
Geometry: Translations and Reflections
Group work and participation is used to perform a specified translation or reflection. In this geometrical translation lesson plan, small groups of pupils are each given a shape to plot on a coordinate grid. Each shape is then translated...
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Shapes: Putting Shapes in Diagrams
In this shape worksheet, learners determine which shapes can be put into which pictures of diagrams, marking the correct diagrams, 6 shapes total. A reference web site is given for additional activities.
Mathed Up!
Negative Scale Factor
Class members investigate the effect of a negative scale factor dilation on coordinate shapes as they watch a short video that shows an example of a geometric figure undergoing a dilation with a negative scale factor. Learners then try a...
Mathed Up!
Angles
What does a geometric farmer drive? A protractor, of course! A set of assessment worksheets prompts learners to use a protractor as they measure angles, name angles, and identify lines. Use the video as a way to...
Curated OER
Worksheet for Pi
Who needs a pie-eating contest when you have a pi-ology game! Celebrate March 14th with a fun board game about pi and other geometric concepts. As learners answer questions about geometry, they move around the board to collect...
Curated OER
Geometry Practice: Classifying Solids #2
For this solids worksheet, students identify the characteristics of solids. They name solids and determine the number of faces. This three-page worksheet contains seventeen problems. Answers are listed on the last page.
Curated OER
Hop To It!
Students determine patterns. In this mathematics lesson, students act out a skit, play a sequence game, and complete patterns. Students use problems solving skills.
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Looking Through the Algebraic Lens
Students work with rectangles to find generalizations for adding and subtracting odd and even numbers in part one of the lesson. In part two, students use geoboards to construct polygons, look for patterns, and find a general rule.
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Triangles, Triangles, Triangles
Students view several different types of triangles. They discuss attributes of a triangle with a partner. Students use a straw cut into pieces to create a triangle. They complete a Triangle Hunt worksheet (teacher created). Students...
Curated OER
Fish Tanks: Volume and Surface Area
Given a very realistic challenge, your young geometers design residential fish tanks in rectangular and triangular prism shapes. They compute the volume of water each will hold. They also determine the size of plastic covers for each...
Curated OER
Chinese Tangrams
Students research the history of Chinese tangrams and complete tangram activities. In this tangram lesson, students complete Internet research to learn the history of Chinese tangrams. Students construct a set of tangrams, compare the...
Curated OER
Plane and Solid Figures
Students define a plane and a solid shape. In this geometry lesson, students compare and contrast different geometric shapes as they relate to solids. They name the geometric solids based on their sides and edges.
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Transformations-Shapes on the Move
Students examine transformations. In this math lesson, students view and describe flips, slides, and turns. Students practice making transformations with shapes.
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Bold Bridges
Students explore bridge construction. In this bridge building activity, students view bridge websites and discuss how bridges are designed and built. Students design and construct their own bridge using the directions provided.
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Estimate then Measure the Angle #1
Practice angle estimation with a instructional activity. First learners estimate three angles within 15 degrees, then they measure and name each angle. A reference website is given for additional activities.
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Plotting Coordinates
In this geometry skills activity, learners plot the listed coordinates on the provided graphs in order to identify the appropriate shapes.
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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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Left-Middle-Right
In this shape recognition worksheet, students respond to 3 questions that require them to record the name of the shapes located on the right, the left, and in the middle.
Curated OER
Similar and Congruent
In this shapes worksheet, students decide if the given shapes are similar, congruent, or neither. Students complete 4 problems.
Curated OER
Calculate Surface Area
In this geometry skills activity, students solve 3 problems that require them to calculate the surface area of geometric figures.