Curated OER
Find Radius/Diameter
In this geometry worksheet, students calculate the radius and the diameter of the five given circles. There is an answer key included.
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Density of the Human Body
In this density of the human body activity, students measure several parts of the body to calculate the body volume. Students convert the body volume to body mass and body density.
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Understanding Pi.
Students study the relationship between circumference and diameter to come up with Pi. "In this pi lesson, students measure, record and find the ratio "circumference/diameter" and their average which is an approximation of pi.
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Absolute Value Inequalities
In this absolute value learning exercise, 9th graders solve 10 different problems that are related to inequalities of numbers. First, they determine the absolute value of each of the inequality equations shown. Then, students write and...
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Arc Length - Horse
Students define an arc and calculate its length. In this geometry lesson, students find examples of arc in the real world. They show their understanding of arcs through problem solving.
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Don't Burst My Bubble
Middle schoolers practice using measuring techniques by examining bubbles.  In this geometry lesson, students utilize mathematic formulas to discover the circumference and diameter of soap bubbles they blow.  Middle schoolers...
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Geometric Figures
In this geometric figures worksheet, 7th graders solve and complete 10 different problems that include measurement. First, they draw a reflection of a given shape over a line. Then, students draw a rotation of a different shape. They...
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Introducing Trigonometry
Eleventh graders explore the three basic trigonometric functions. In this trigonometry/Algebra II lesson, 11th graders use GeoGebra and the unit circle to define the ratios of sides is a right triangles as they examine the full domain...
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Plain Figures and Measuring Figures
Students investigate basic geometric concepts. In this geometry lesson, students explore solids through measuring and modeling. This assignment models the importance of understanding concrete objects in geometry.
 
 
 
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The Value of Volume
Students measure the perimeter and area of their polygons. In this geometry lesson, students calculate the volume and area using the correct tools. They calculate the time and temperature and the perimeter and side lengths of triangles.
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Task: Grain Storage
Farming is full of mathematics, and it provides numerous real-world examples for young mathematicians to study. Here, we look at a cylinder-shaped storage silo that has one flat side. Given certain dimensions, students need to determine...
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Length of an Arc
Students compute the length of an arc and each hypotenuse in the give figure, adding them up in the end. They then develop the formula for the arc length with respect to the x-axis and the y-axis. Students also develop a formula for the...
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Computing Perimeters of Rectangles
In this math learning exercise, students compute the perimeters of rectangles, regular polygons, and irregular polygons. Students also compute the circumferences of four circles, given the radius.
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Pumpkin Predictions
In this mathematical worksheet, students estimate and predict the height, stem length, diameter, circumference and weight of five pumpkins against their actual measurements.
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Worksheet 8: Absolute Percentage Error
In this absolute percentage error worksheet, students estimate the maximum absolute error in computing the volume and area of a cube or a sphere.  They use differentials to estimate the value of roots.  This one-page worksheet contains...
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Mathematical Modeling, Circular Movement and Transmission Ratios
Students perform an experiment with different sizes of followers (from an easy to follow set of teacher directions) and record their observations. They test the rotations of the driver compared to the rotations of a follower and put the...
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Volume And Surface Area Of Prisms
Eighth graders investigate concepts related to the finding of the area of prisms. They use boxes as models of calculating the area while getting ready for the next level. The instructors are given sovereignty over the assessments and the...
New York City Department of Education
Designing Euclid’s Playground
Create a geometric playground. Pupils work through a performance task to demonstrate their ability to use geometric concepts to solve everyday problems. The accompanying engineering design lessons show teachers how the assessment works...
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Manipulating Integers
In this algebra worksheet, students manipulate integers to add, subtract, multiply and divide using order of operation. They rewrite word problems and solve for the unknown. There are 24 questions with an answer key.
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Where in the World
Students explore the global grid system. In this globe lesson, students identify latitude and longitude lines and how these can tell the coordinates of any place. They use the Internet to find the exact coordinates for their town. 
Granite School District
7th Grade CCSS Math Vocabulary Word List
Address key vocabulary in the seventh grade Common Core Math Standards with this comprehensive list. A series of word cards is also provided that supports each term with images and examples, making this an excellent tool for teaching the...
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Electric Hoist Problem
Students convert angle measures between degrees and radians.  They are given a copy of the task sheet with a graphic to help describe the situation.  Pupils review the angle and arc relationship in a circle related to length of the...
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Properties of the Centers of a Triangle
High schoolers investigate properties of the four centers of a triangle and explore a special property of the circumcenter and orthocenter of a triangle. This instructional activity requires the use of Cabri, Jr.
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Standardized Geometry Test Practice
In this angles, lines and figures review worksheet, 10th graders solve and complete 33 standardized multiple choice problems. First, they use the Segment Addition Postulate to solve for a variable given an equation for each line. Then,...