Curated OER
Area of Rectangles
Seventh graders review the concept of finding the areas of a rectangle. This lesson plan uses the classroom as a real life application for the formula of area. They measure classroom in order to compute the area.
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Geometry: Area Project
Sixth graders identify and use area formulas for finding the area of geometric shapes.
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Area and Perimeter
For this geometry worksheet, 10th graders use single variable equations to solve problems focusing on area and perimeter of triangles, trapezoids, parallelograms, rectangles, and hexagons. The one page worksheet contains seventeen...
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Area of Rectangles
For this rectangle worksheet, learners find the areas of rectangles and draw squares to a given size, Examples and explanations are provided prior to the exercises. There are eight problems provided on this two-page worksheet.
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Volume, Surface Area for Rectangular & Triangular Prisms
Seventh graders explore the concept of rectangular and triangular prisms. In this rectangular and triangular prism lesson, 7th graders identify various prisms as triangular or rectangular. Students discuss the various shapes of bases...
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Area, Perimeter Word Puzzle
Students measure planes and solids. In this geometry lesson plan, students find the area and perimeter of different polygons.They complete a word puzzle to review their vocabulary words.
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Effect on Surface Area and Volume
Students identify the effect the change of dimensions causes for the volume and surface area. In this geometry instructional activity, students compare perimeter, area and volume as they play around with the dimensions of the...
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Circumference and Area
In this geometry activity, students answer 10 questions regarding, circumference, area, time, calculating the radius if given a diameter, and polygon recognition.
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Shapes and Introduction to Geometry
Learners make a quilt. In this geometry lesson, students discuss patchwork quilts and learn some different geometric shapes and patterns that are commonly used. Learners explore designs with triangles and squares and then make their own...
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Geometry Course Review
For this geometry review set of worksheet, 10th graders solve and complete 139 various types of problems. First, they find the slope-intercept form of a line passing through a point and parallel to a line given. Then, students find the...
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Symmetry of Road Signs
Students identify symmetry in road signs. In this geometry lesson, students explore objects in the real world for symmetry. They perform translation, rotation and reflection.
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Exploring Transformations with Matrices
A page right out of the Holt Geometry book. Use a graphing calculator and graph paper to explore transformations with matrices.
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Pythagorean Theorem
In this measurement lesson, learners examine the Pythagorean Theorem, perimeter, and areas of right triangles. They record their measurements and research their findings on a grid.
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A Rectangular Prism and Its Net
Identify the nets for prisms and other geometric shapes. Learners calculate the surface area of the rectangular prism then sketch the shapes of prisms and other polygons. Unfolded cereal boxes are used as a visual aid, great idea!
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Menelaus' Theorem
Pupils investigate Menelaus Theorem. In this geometry lesson, students calculate the area of polygons. They differentiate between boundaries point, interior points and area of lattice points.
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Geometry Involving Figures - Week 12 (Ratio and Surface Area)
In this ratio and surface area worksheet, students find the ratio of surface area of one figure to another. They determine the length of sides and angles through similar figures. Students use trigonometric ratios to find the length of...
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Area-Time to Get in Shape
Young scholars investigate the properties of triangles and parallelograms. For this geometry lesson, students calculate the formula used to find the are of a triangle and other polygons. They create a visual model to represent their...
Improving Measurement and Geometry in Elementary Schools
The Sum of the Interior Angles of a Polygon
Junior geometers discover that polygons can be decomposed into triangles and that the number of triangles can be determined by a rule. Note that the Geometer’s Sketchpad® software is required to carry out all components of this...
PBS
Accessible Shapes
All the 2-D and 3-D measurement work you need is in one location. Divided into three sections, the geometry lesson plans consist of visualization of three dimensions, classifying geometric figures, and finding surface area and volume....
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Napolean Triangle
Learners investigate the Napoleon triangle theory. In this polygon lesson plan, students differentiate between the boundary points, interior and lattice point of a polygon. They apply concepts of equilateral triangles to solve...
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Tantalizing Tangrams
Students explore "area." For this tangram geometry and measurement lesson, students arrange tangram pieces to find the area of characters presented in a story they listen to on a website. Website information and related...
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Lesson 9-3 Practice B: Composite Figures
In this composite figures worksheet, students solve 11 short answer problems. Students find the area of figures composed of various polygons. Students find the area of each figure given a sketch of the figure with various measurements...
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Parallelogram Problems
For this online math worksheet, high schoolers solve a variety of geometry problems which utilize parallelograms. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A...
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Visualizing Multiplication
Upper graders represent multiplication of a two-digit number by a two-digit number as the area of a rectangle with dimensions of the two factors. They find patterns for the number of different base ten blocks in a rectangle representing...