Curated OER
Negative Magic Squares
Magic squares are interesting objects in both mathematics proper and in recreational mathematics. So they are objects that children should have heard about and experienced. The problems in this sequence give students the opportunity to...
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Marshmallow Geometry
Third graders create 2D and 3D shapes using marshmallows and toothpicks. In this geometry instructional activity, 3rd graders create their shapes and document the number of faces, edges, corners, angles, and sides. They share one shape...
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Marshmallow Geometry
In this three-dimensional shapes geometry lesson, learners identify geometric solids and name their properties. They define "face," "edge," and "vertex," and construct geometric solids using marshmallows as vertices and toothpicks as edges.
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Percentages Introduction
In this percentages learning exercise, students color 25% of 100 small squares blue, 35% red and 30% yellow. Students figure out how many squares they have left and then what percent of the 100 squares are left. Students then work out 5...
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Prime Numbers
In this prime numbers worksheet, students read facts and complete comprehension activities. In this graph construction and drawing worksheet, students complete two activities.
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Balancing Act
Second graders identify the attributes of various shapes and estimate the weight of the objects. In this geometry activity, 2nd graders identify the attributes of concrete objects and use a pan balance to weight them.
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Decimal Addition and Subtraction
In this decimal addition and subtraction worksheet, students use a computer program for initial instruction, then complete 22 problems with decimals.
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Area, Arithmetic and Algebra
Students model formulas for rectangles and squares. In this area, arithmetic and algebra lesson, students explore the formula for the area of squares and rectangles. They use squares to model the formula for the area and identify...
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Genetics
Students explain the difference between dominant and recessive genes, identify what causes differences in the traits of parents and their offspring, and explain how sex is determined. They will also improve their reading and...
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A Dreamer's Cloak
Students listen to the teacher read "A Dreamer's Cloak." They examine the difference between squares and circles and create their own cloak by using a paper bag and different shapes.
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Systems and Applications
For this algebra worksheet, 11th graders solve 14 systems of equations using substitution or elimination and 14 word problems.
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Finding the Measure of Segments
Students observe and solve examples of betweenness, ruler postulate, and segment addition postulate. They complete the Finding the Measure of Segments worksheet using the distance formula.
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Identify the Common Property in Twelve Octagons
For this Octagon Puzzle worksheet, students determine the common property for the given numbers in each of twelve octagon. The solutions are provided.
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Volume and Surface Area, A Sweet Activity
Geometry.... sweet! Using sugar cubes, learners build rectangular prisms of different sizes and shapes. They glue them together and assess volume. Then they color the outer sides to visualize and compute surface area. To make a visceral...
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Pop-it...Stop-it
Students observe how certain geometric shapes can be used to make some structures rigid and others flexible. The activity involves construction of a 30-60 right triangle, folding while following directions, and identifying polygons.
Illustrative Mathematics
Rational or Irrational?
Is 4 plus the square root of 2 rational or irrational? After your class has gained a basic grasp of rational and irrational numbers, use this worksheet to push them a little further in their understanding. Learners must identify sums and...
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Doing Battle With Radical Equations
High schoolers observe and solve examples of equations involving radicals. They complete a Doing Battle With Radical Equations worksheet and checklist.
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1st Grade Math Review
In this math review worksheet, 1st graders respond to 20 multiple choice questions that serve as a review of addition facts, subtraction facts, odd and even numbers, and calendar skills.
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Properties of Operations
Eighth graders use the order of operation correctly. In this algebra lesson, 8th graders solve integers using the order of operation. They apply the commutative as well as the associate property to solve problems correctly.
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Three Tangent Circles
In this tangent circles worksheet, students use pi to solve a problem involving tangent circles. This one-page worksheet contains 1 problem. The answer is provided at the bottom of the page.
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Babylonian Mathematics 2
Students research Babylonian mathematics. They calculate simple surd numbers. Students find the fractional form of rational numbers expressed as decimals. They work with numbers in base 60.
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Charting the Growth of the Milkweed Plant
In this charting the growth of the milkweed plant worksheet, students use the data given to complete the growth chart, then answer 5 questions about the information in the chart.
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Deer: Predation or Starvation
In this balance of nature learning exercise, students use a data chart to graph wolf and deer populations over a ten-year period. Students use this graph to complete 3 short answer questions.
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Family Pedigrees
Students work as a class to first construct a pedigree of a popular singer, showcasing the singing gene being passed down through the generations. Students then make their own family pedigree and follow two traits through their family...