Curated OER
How Many Bears in the Forest?
Third graders model the tag and recapture of bears and use proportions to estimate the population of the bears in their forest. This is a statistical sampling method used by scientists and naturalists to determine population numbers.
Curated OER
Divided We Stand
Students figure out how to arrange seating in a concert hall given specific requirements. They better explain how dividing can allow us to arrive at mathematical solutions quickly and logically.
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Career Math Puzzles
Third graders come up with a career for each letter of the alphabet.
Curated OER
Two Ways About It
Students take an imaginary hike in two opposite directions along a lake. They view and interpret satellite images and discuss the pros and cons of hydroelectric dams.
Curated OER
Maya Math: Addition and Subtraction
Young scholars examine how ancient Maya counted, and practice addition and subtraction using Maya number glyphs.
Curated OER
Walking Home
Learners discover the formulas for calculating distance. In groups, they solve equations determine the distance in a specific amount of time. They record their answers in a chart or graph and compare them with their classmates.
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Make a Zoo
In this unit students work in groups to find out about an endangered animal species. They design a zoo enclosure for the animal and build a scale model. Together the class constructs a zoo! In the process of planning and building the zoo...
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Rules of Sign Change
Students manipulate negative and positive numbers. In this integers lesson, students move through three activities exploring negative and positive whole numbers. A number line, cardboard function representation, and solving expressions...
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Skin of Our Teeth by Thornton Wilder
In this allusion learning exercise, students work in pairs to define the allusions assigned to them from the play 'Skin of Our Teeth.' Students present their research to the class.
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Unit Perimeters and Areas
Students use Geometers SketchPad to find the area and perimeter of several shapes. In this geometry instructional activity, students determine area of rectangles and progress through irregular polygons. None of the referenced worksheets...
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How Big Is Your Heart?
Learners complete a performance about the heart. In this heart lesson plan, students learn about the heart functions and then perform them.