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Triangle Exterior Angles Theorem
Students identify the measure of missing exterior angles. In this geometry lesson plan,students define and apply the exterior angle theorem to solve problems. They use Cabri software to create different angles and make investigations.
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Orthographic Drawings
Students investigate the creation of three dimensional drawings. In this geometry lesson, students analyze and complete orthographic drawings. They Cabri software to manipulate and move the drawings around.
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The Trappings of Trapezoids
Students define trapezoids and their shapes. In this geometry lesson, students calculate the area of a trapezoid and a parallelogram. They use Cabri software to make investigations.
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Exploring Angle Pair Relationships
Students investigate the relationship between angles of triangles. In this geometry lesson plan, students identify properties of right and non-right triangles. They differentiate between vertical and supplementary angles.
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Exploring Angle/Pair Relationships
Students find missing angles and sides of triangles. In this geometry lesson plan, students create intersecting lines to measure angles. They use Cabri Software to create virtual angles.
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Orthographic Drawing
Learners investigate orthographic drawings. In this geometry lesson, students identify properties of three dimensional drawings in space. They solve problems using volume and area formulas.
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Orthocenter Of a Triangle
Learners find the orthocenter of a triangle. In this geometry instructional activity, students identify where the altitudes meet in a triangle. They use Cabri software to explore acute, obtuse and right triangles.
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Finding the Area of a Parallelogram with Translations
Students calculate the area of a parallelogram. In this geometry lesson, students perform translation using a coordinate plane and coordinate pairs. They perform translation on other polygons.
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Finding the Area of a Parallelogram with Translations
Students calculate the area of parallelograms. In this geometry lesson, students identify properties of parallelograms and use to to solve problems. They create polygons using Cabri software.
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Side Splitter Triangles
Students investigate the side splitter theorem. In this geometry lesson, students estimate and solve problems dealing with ratios and proportions. They identify angles created by lines that are parallel.
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Line, Line Segments, Ray and Points #2
In this geometry worksheet, students identify diagrams as either lines, line segments, rays or points, write the definition of each and match it to its diagram.
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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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Rhombicuboctahedron
In this math learning exercise, students develop their cognitive and motor skills through constructing the geometric solid of a rhombicuboctahedron
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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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Composition of Reflections
Students perform reflections and translations of polygons. In this geometry lesson, students perform reflection in two parallel lines. They use Cabri to observe the transformation and rotations of each shape.
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Tetrahedron
For this math worksheet, students construct a paper model of a tetrahedron. They create it to have four triangle faces, four vertices and six edges.
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Octahedron
In this math worksheet, students develop cognitive and geometric abilities. They construct a paper model of a octahedron composed of eight triangular faces, six vertices and 12 edges.
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Inscribed Right Triangles
Young scholars calculate the measurements of the inscribed angles of a triangle. In this geometry lesson, students relate the hypotenuse of a right triangle and the diameter of a circle to each other. They calculate the diameter of a...
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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.
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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.
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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.