Curated OER
Exploring Centers of a Triangle: Part 1
Pupils use problem solving skills, formal geometry, and The Geometer?s Sketchpad. They model and solve two real-world problems by constructing the in center and circumcenter of triangles.
Curated OER
Cabri Jr. - Getting Started with Triangles
Learners explore a basic triangle construction. In this beginning geometry lesson, students investigate the steps to necessary to create an equilateral triangle with Cabri Jr.;
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Exploring Harmonic Conjugates
High schoolers investigate harmonic conjugates using Cabri Software or the Ti Calculator to analyze harmonics. They explore different angles measurements as they move their circles around and solve problems.
Curated OER
Challenge: Skills and Applications Lesson 2.2
In this truth tables worksheet, students solve 5 short answer problems. Students make a truth table for five conditional statements.
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Regents Exam Questions G.G.21: Centroid, Orthocenter, Incenter, and Circumcenter
In this triangles worksheet, high schoolers solve 4 multiple choice problems. Students find the centroid, orthocenter, incenter, and circumcenter or various triangles.
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Calculate Missing Angles and Line Lengths
In this problem solving worksheet, students calculate the missing angles and lengths to 4 different shapes. Students place their answers in the boxes provided.
K6 Math
Nets and 3-Dimensional Figures
Three solid figures are lined up down the left side of the page to be compared to three nets down the right side. Learners simply decide if the corresponding net matches the solid figure. Be aware that the publisher's watermark is...
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Conic Sections and Locii
Students differentiate between ellipse and hyperbola. In this algebra lesson, students graph and solve elliptical equations. They use the cabri program to create the different conics and move them around.
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Concurrent Lines in Triangles
Students explore the concept of concurrent lines in triangles. In this concurrent lines in triangles lesson, students work in groups to investigate properties of concurrent lines in acute, right, and obtuse triangles. Students use a...
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Paragraph Proofs
Students explore the concept of paragraph proofs. In this paragraph proofs instructional activity, students make flow charts of the process of getting ready for school. Students convert the flow chart to a paragraph proof. Students use...
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Perspective: Top or Front View?
In this perspective: top or front view activity, 5th graders look at 3 images of blocks, then choose top, front or could be either view to indicate perspective.
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Truncated Tetrahedron
In this math worksheet, students read about the truncated tetrahedron and then create a paper model. It should look like a solid comprised of 4 regular hexagonal faces, 4 regular triangular. faces, 12 vertices and 18 edges.
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Snub Cube
In this math worksheet, students create a paper model of a snub cube. It is an Archimedean solid comprised of 6 square faces, 32 equilateral triangle faces, 24 vertices and 60 edges.
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Rombicosidodecahedron
In this math worksheet, middle schoolers create a geometric paper model of a rombicosidodecahedron solid that is considered a challenging project.
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Truncated Icosidodecahedron
In this math worksheet, students use a paper model to build a truncated icosidodecahedron. The worksheet includes a model that is to be cut out and put together by the student. There is an option to include a small preview of the...
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Truncated Icosahedron
In this math worksheet, students build a model of a truncated icosahedron. This shape has 12 regular pentagonal faces and 20 regular hexagonal faces. An option to include a preview of the finished model is included for the teacher.
Curated OER
Truncated Dodecahedron
In this math worksheet, students build a truncated dodecahedron. This is a solid shape with 12 regular decagonal faces and 20 equilateral triangular faces. Students build this shape to assist in developing their cognitive and geometric...
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Dodecahedron
In this dodecahedron activity, students build a model of a dodecahedron. The pattern for this shape is made up of twelve pentagons. This is a activity generator, and the teacher can choose if a sample of the completed shape will be...
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Nets and 3 Dimensional Figures
In this nets and 3 dimensional figures worksheet, 5th graders look at the 3D figure and the net and mark yes or no if it is an accurate representation.
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Parts of a Circle
For this circle worksheet, students choose the correct term that describes a given set of math symbols, using a labeled circle. A reference web site is given for additional activities.
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Geometric Shape Perspective
In this geometric shape perspective worksheet, students look at three images of blocks, then decide if the next image is the top view, the front view or could be either view.
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Net of a figure
In this 3D figure instructional activity, students observe the net of a 3D figure where you open up the figure and tell if it is an accurate representation of that figure. Students complete this for 3 figures.
Curated OER
Parts of a Circle
In this parts of a circle worksheet, learners choose correct terms to identify labeled parts of a circle. A reference web site is given for additional activities.
Curated OER
Parts of a Circle
In this geometric shapes worksheet, learners respond to questions that require them to identify chords, radii, diameters and centers of 4 circles.
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