Curated OER
Circle Relationships
Students explore circles. In this geometry lesson, students explore the relationship between the circumference of a circle, the distance a ball travels, and the number of rotations the ball must make in order to travel a certain...
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Mini-Metric Olympics
Eighth graders participate in the mini-metric Olympics. In this measurement lesson, 8th graders solve real-world problems that require them to calculate length, area, and volume in metric units.
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Solving Multi-Step Equations (Ch. 2.3)
Eighth graders solve multi-step equations, showing each step in their solution. This multi-step equations lesson includes sample problems to complete as a class, clear step by step instructions for the student and a linked comic strip...
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Triangle Exterior Angles Theorem
Students identify the measure of missing exterior angles. In this geometry instructional activity,students define and apply the exterior angle theorem to solve problems. They use Cabri software to create different angles and make...
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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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Can You See the Music?
Fourth graders examine the makeup of the electromagnetic spectrum and how the various forms of EMRs are similar and different from each other. They, in pairs, solve problems from worksheets imbedded in this lesson plan.
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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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Spreadsheet Activity
Students create a spreadsheet to match a given sample. This includes adjusting column width and row height, changing alignment, changing size and style of print, changing number format.
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Basic Math - Plan a Cruise
Learners measure distances and report them in fractions. They convert fractions to decimals and multiply decimals.
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Pythagorean Theorem
Students solve right triangles using the Pythagorean Theorem. In this solving right triangles using the Pythagorean Theorem instructional activity, students find the missing side of a right triangle. Students find the...
Pennsylvania Department of Education
Alike and Different
Learners compare and contrast objects and are introduced to a Venn Diagram. In this alike and different lesson, students make observations regarding properties of objects. Learners classify object and build ideas about variables....
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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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Polygonal Strings
Sixth graders apply knowledge of how to calculate the area and perimeter of triangles. They determine why it is inappropriate to measure the area of land by its perimeter which is done in certain areas of New Guinea. They complete a...
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Inequality and Simple Interest Review
Students review how to solve and graph an inequality. They also review how to find simple interest from a given problem set. The teacher performs informal assessment through observation of students.
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Properties of Fractals
Students build a working definition of regular fractal, look carefully at the concepts of dimension and scale, and are introduced to logarithms. They solve simple exponential equations for the exponent both by trial and error and using...
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Properties of Fractals
Students build a working definition of a regular fractal, they measure the concepts of dimensions and scale, they explore the concept of a logarithm and they attempt to solve simple exponential equations for the exponent both by trial...
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Peter's String
Students are introduced to the math problem and consider how they could approach it. In pairs, students investigate Peter's conjecture in any way they see fit. They then share their answers with the class.
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Dredging the Mississippi
Students determine the amount of earth that needs to be removed from the Mississippi and the amount of time it takes the Army Corps of Engineers to complete a dredging project. Given specific dimensions of a channel, calculations are...
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Rotation Sensor Challenge
Students participate in a challenge to construct a rotation sensor with the highest degree of accuracy and repeatability. They conduct computer analysis of their sensor using repeated trial.
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Problem Solving in Mathematics
Seventh graders discover that there are multiple strategies to be used in problem solving. They explain a problem solving situation in their own words and determine a possible strategy for solving the problem.
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Batter Up
Students use a variety of strategies to figure out the cost of baseball tickets. They use a combination chart, notebook notation, etc. to find the cost of their family to attend a Cardinal's game in St. Louis.
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Using Polynomials To Find Perimeter
Fifth graders engage in the solving of a real life application problem using the concept of calculating perimeter. They apply the operations of calculating with the polynomials for finding the perimeter of triangles,quadrilaterals, and...
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Glow With the Flow
Students investigate the force of drag and how NASA engineers use models and glowing paints to examine how air flows over vehicles in a wind tunnel. They discover how the blended wing body will affect air travelers of the future.
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How BIG is 400?
Students solve problems using dimensional analysis. In this chemistry lesson, students choose a problem and present it in class. The rest of the class will evaluate the solved problem on the board.