Curated OER
Concept of Volume: the Unit Cube
In this geometry worksheet, 10th graders are asked to find the volume of different polygons. They use the formula for volume dealing with the different shapes. There are 60 problems.
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An Introduction to Measuring Theory
Students investigate one, two and three dimensional objects. In this algebra lesson, students differentiate between different shapes of objects and write equations to represent each. They start with what they already know and prove...
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Perimeter of Triangles and Rectangles
Fifth graders study perimeter. In this math lesson, 5th graders use Cheerios to find the perimeter of various polygons. Students discuss how to figure the perimeter of triangles, squares and rectangles.
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Polygons And Polyhedra
High schoolers recognize and name two-dimensional and three-dimensional geometric figures. One group of students will extend the study of polygons to quadrilaterals while another group of high schoolers will extend the study of polygons...
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Shoelace Algorithm
In this shoelace algorithm worksheet, students determine the area of a triangle when given the coordinates of the vertices. They determine the area of a quadrilateral. Students find the average of the x and y coordinates.
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Interior Angles of Polygons
In this online math worksheet, students determine the interior angles of polygons given their exterior measurements. This excellent resource allows the students to check their answers, and to get "hints" should they run into...
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Linear Systems: Applications of Determinants
In this determinant worksheet, learners explore determinants, area and volume. This two-page worksheet contains explanations and examples. It provides two problems for students to solve.
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Fences and Posts
Fifth graders use Geoboards to demonstrate how shapes can be made by looping the rubber bands over the nails. They make a triangle on their Geoboards. At least one side of the triangle should be either horizontal or vertical. The picture...
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Measuring with Mathematics
Eighth graders discover how the change in the dimensions of a shape cause a change in the overall area of the shape, but the perimeter stay the same. They, in groups, go out to the playground and construct large areas using stakes and rope.
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Cut It Out
Sixth graders derive an original formula for calculating the area of an irregular figure.
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Volume, Surface Area for Cylinders
Seventh graders explore the concept of volume and surface area of cylinders. In this volume and surface area of cylinders lesson, 7th graders break cylinders into their base shapes of a circle and a rectangle. Students discover that...
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Area of Parallelograms
Seventh graders review the process of finding the area of a rectangle and complete a couple of examples as a class. They discuss what a parallelogram is and what the formula would be for finding its area. They listen to an explanation...
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THE AREA OF A CIRCLE
Students examine the relationship between circumference and diameter and how to use the formula to find the area of a circle. In this circle lesson plan students divide into groups and complete an activity.
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Calculate It
Fourth graders find the area and perimeters of squares and rectangles using a calculator to check their multiplication. They use the appropriate formulas to find the area and perimeter of the given geometric shapes.
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Construct Figures to Find Specific Volume
Sixth graders use number cubes to explore volume of two-dimensional shapes. They roll a die and construct a shape using the numbers rolled as measurements of the sides. They estimate the volume of a given object, and then use the...
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Wood Identification Based on Density
Eighth graders measure irregular and regular shaped solids. In this investigative lesson plan students calculator volume, mass and density of wood and blocks.
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Square Pegs in Round Holes
Sixth graders problem solve the square peg in the round whole problem by applying knowledge of the formulas for the areas of the circle and the square. They decide on a problem solving strategy based on logical reasoning.
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Area graphics for 7th graders
Students randomly select dimensions for three geometric shapes (square, right triangle and circle). From the graphs they compare and contrast the graphical results of each shape.
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Unit Perimeters and Areas
Pupils use Geometers SketchPad to find the area and perimeter of several shapes. In this geometry lesson, students determine area of rectangles and progress through irregular polygons. None of the referenced worksheets are included with...
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The Old Chicken Run Problem
Sixth graders apply problem solving strategies to work with a real life situation in which they need to determine the area. They determine the area of chicken runs that are rectangular in shape when give a partial perimeter.
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Measuring the Diameter of the Sun
Students calculate and measure the diameter of the sun. They construct a meter stick instrument, calculate the diameter using a formula, and compare the measurement with the accepted scientific measurement.
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Measurement: Lesson 2
Eighth graders complete math problems given in this lesson plan, where they find the perimeter and area of specific figures. They estimate the perimeter and area of shapes and figures and then complete the mathematical formula to find...
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Design an Apartment
Students are given the task of designing an apartment. In groups, they practice estimating the area and perimeter of different shapes. After designing their space, they apply the same formulas to solving real-world story problems.
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Air Pressure is Powerful
Students construct a barometer and collect data on the changes in air pressure. They work is small groups using plastic tubing, corks, and green food coloring. They then use a formula to convert inches of mercury to barometric pressure...