Curated OER
Geometry: Calculating the Area of a Circle
In this area worksheet, students use the perimeter or radius to determine the area of a circle. This one-page worksheet contains 8 problems. This worksheet may be produced in printed form. Answers may be viewed on-line.
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Trig is SOH Easy!
Students derive the six trigonometric identities. In this trigonometry activity, students review the parts of a right triangle and use the Pythagorean theorem as a guide to find the trig identities. They find sine, cosine and tangent...
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Algebra/Geometry Institute: Area of Polygons
Students find the area of polygons. In this area of polygons lesson, students find the area of parallelograms, rectangles, squares, and other polygons. They identify each given figure and determine the appropriate formula...
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Congruent Triangles - Is This Enough Information?
Seventh graders examine congruence postulates and apply knowledge to triangles in the world around them.
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Barrels, Casks and other Curvy Containers: Math, Geomety, Art
Middle schoolers construct a barrel or other curvy container and then estimate and gauge its volume.
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Amazing Consistent Ratios
Students derive the six trigonometric identities. In this trigonometry lesson, students find the ratios of sine, cosine and tangent using the right triangle. They use properties of the Pythagorean Theorem to find the trig identities.
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Constructions of Isosceles and Equilateral Triangles
Young scholars explore the difference between drawing and constructing a triangle utilizing The Geometer's Sketchpad on the computer. They create, develop and script constructions for both isosceles and equilateral triangles. Each...
Math eBook
Perimeter Worksheet
In this perimeter activity, students find the perimeter of given regular and irregular polygons. This four-page activity contains 20 problems. This interactive activity may be completed online or printed for paper use.
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Crime Scene Documentation
Students become forensic investigators. In this crime scene lesson, students go to the science lab which is the "scene of the crime." They collect evidence such as fingerprints, "blood" evidence, chromatography, footprints, and more.
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Follow the Falling Meteorite
Students use triangulation method to locate meteorite landing site on the map. In this earth science lesson, students participate in a meteorite treasure hunt set up by the teacher. They explain how this method is used by scientists to...
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Tower Building Challenge- Budgeting
For this tower building and budgeting worksheet, learners attempt to meet the goal of building the tallest free standing structure on the smallest budget. They build the structures with straw, paper clips, and masking tape which all have...
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Creating Circles
Learners make a circle graph. In this graphing lesson, the teacher conducts a class survey, then demonstrates how to make a pie graph. When students are comfortable with the material, they use a worksheet to create their own graph.
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Pythagorean Theorem
Need a few extra examples on using the Pythagorean Theorem? Here is a activity that uses pictures of New York City’s buildings as a model, and young architects find the height of the building. Consider adding more examples to further...
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Computer Accuracy
Young scholars work together on computers to practice measuring for navigation. They discover that errors in their calculations can lead them in the wrong direction. They examine the need of computers by engineers.
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Pythagorean Theorem
Students explore the history of Pythagoras and his contributions to mathematics. For this middle school geometry lesson, students use one inch tiles to investigate the Pythagorean Theorem and to find the length of the sides of a right...
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Perimeter
Students examine the concept of perimeter. Students calculate the perimeter of a random shape on a grid. Students develop a better understanding of the concept of perimeter. Students calculate the perimeter of shapes.
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An Introduction to Quadrilaterals
Students explore different types of quadrilaterals. Students define the terminology used with quadrilaterals. They create particular quadrilaterals based on specific characteristics of the quadrilaterals using an online tool.
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Tessellation
Students create an art piece incorporating tessellating shapes, translational symmetry, reflectional symmetry,and or rotational symmetry. They are asked if they know the definition of tessellation. If so, students are asked what shapes...
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Geometry In the Yard
Young scholars are responsible for creating a border around a triangular garden spot, of which they know the measurements for two sides. They use the Pythagorean Theorem to calculate the third side and complete the garden.
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Tropical Atlantic Aerosols
Students analyze NASA data from the Multi-angle Imaging Spectroradiometer. In this NASA data lesson, students access an assigned website to examine information from the MISR on the Terra Satellite. They determine how desert dust travels...
Alabama Learning Exchange
The State Capital of Stem and Leaf
Students explore the concept of stem and leaf plots. For this stem and leaf plots lesson, students plot the 50 US states' capitals on a stem and leaf plot according to the first letter of each state. Students compare...
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Kites: Patang - The Indian Fighter Kite
Students investigate the history of fighter kites and build their own. In this aeronautics lesson, students discover how other countries utilize fighter kites and where they originated. Students create their own fighter kites...
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Geometry Assessment-"Chapter 2"
In this geometry worksheet, students match terms with definitions, and complete short answer questions about polygons and congruency.
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Our Favorites
Students participate in and conduct a survey to determine various class favorites. They collect, organize and display their data, interpret the results, and complete a packet of worksheets to display the information.