Curated OER
Does the Area of the Quadrilateral Change?
Students study area and quadrilaterals. In this multiplication and area lesson, students use Polystrip models to change rectangles to form different parallelograms. Students find the area of the models use a Geometer Sketchpad to find...
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Can Stack
Students are able to find the rule for summing consecutive numbers;
identify the pattern of triangular numbers. They then solve the given problem using logic and mathematical reasoning.
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Angles and Parallel Lines
In this geometry worksheet, students identify the different angles formed by cut parallel lines. They name the angles and find the measures of each. There are 24 questions.
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Balancing the Scales: Understanding Ratios
Students are introduced to the concept of ratios. In groups, they convert sets of numbers into a ratio. After practicing, they use the ratios and proportions to solve story problems. They also calculate map distances and discover map...
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Mean, Median and Mode
Students define mean, median, mode and outliers. In this statistics lesson, students analyze data using the central tendencies. They follow a path through a maze collecting data. They analyze the data using the mean, median and mode.
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Download and Analyze
Students download information from a NASA website into a database. They transfer it to a spreadsheet by completing the information and analyze the information. They determine temperature averages, mode, and graph the results. They write...
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There's Gold in Them Thar Ratios
Students draw a model of the bunny problem which generates the Fibonacci Sequence, spirals generated from golden rectangles and golden triangles; identify the golden ratio in the human body, and find the Fibonacci numbers in nature.
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The Truth About Triangles And Proofs
Students engage in a lesson that is about the classification of triangles and the mathematical proofs involved in working with them. They work on a variety of problems that are created by the teacher with the focus upon the importance of...
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More No-Three-In-A-Line
Fourth graders read Mary's problem and make sure that they examine it.
After some discussion, let the class work on the problem in their groups.
They then take turns in putting a picture of their arrangement on the board.
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Not Everything Is More Expensive
High schoolers investigate the concept of using different types of presentations to help solve mathematical problems. They research the use of illustrations to help understand data and its interpretation in a graphing format. Students...
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Fashion Sense and Dollar Wise
Young scholars work in groups to show understanding of the relationship between fractions, decimals, percentages, and the application of ratios and proportions. For this decimals, fractions, and percents lesson, students use real life...
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Fashion Sense and Dollar Wise
Middle schoolers find the cost of an outfit. In this percentages lesson, students look at ads, pick out an outfit, and find the sale price. They create a commercial and complete 4 included worksheets.
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Solving Problems
Pupils decide how many rides it takes at a county fair to benefit from bargain tickets.
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Quadrilateral Explorations
Ninth graders identify quadrilaterals and label the vertices of quadrilaterals. they justify their identification of the quadrilaterals. Students work in groups to identify and create quadrilaterals
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High Mountain Retreat
Students explore and analyze atmospheric conditions for a high mountain retreat. They examine the relationship between altitude, atmospheric pressure, temperature and humidity at a particular location. In addition, they write reports...
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Quadrilateral Explorations-Grade Nine
Ninth graders investigate quadrilaterals. In this geometry lesson, 9th graders examine and classify quadrilaterals using the slope, midpoint and distance formulas. Additionally, students create various quadrilaterals given...
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Rep Tiles
Third graders use pattern blocks of one shape at a time to try to create a similar shape. They compare the perimeter of the new figure with the perimeter of the original shape and look for a pattern. Students use the pattern to predict...
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Scientific Notation and Metric Prefixes
In this physics activity, students complete 5 sets of unit conversion problems. They express exponential expressions to expanded form and vice versa.
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Hurricane Frequency and Intensity
Students examine hurricanes. In this web-based meteorology instructional activity, students study the relationship between ocean temperature and hurricane intensity. They differentiate between intensity and frequency of hurricanes.
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How many isosceles Triangles Can You Find?
Fifth graders solve problems while examining a variety of isosceles triangles. For this isosceles triangle lesson, 5th graders examine shapes to find their characteristics. Students pay particular attention to the...
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A Package of Pringle
Here is a problem-solving lesson that has learners take the role of a packaging expert to design an inexpensive means of packaging a potato chip. It could benefit from having more specific detail about the lesson itself, but it does make...
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Putting Your Best Foot Forward
Third graders measure their feet and their parents' feet, record data on computer-generated graphs, and calculate and record mean, median, and mode.
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Go Ahead, Take a Guess! Estimating in the Real World
Learning how to use estimating to solve real life problems can be a great way for students to apply math skills.