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Pi as a Ratio
Eighth graders measure the circumference and the diameter of circular objects and record the measured values of the circumference and the diameter in a table. They then record their measurements in centimeters and use their data to...
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Standard Sizes of Paper
Students measure the dimensions of different sizes of paper. Using a copy machine, they discover dilations. After enlarging and shrinking particular copies, students examine rates, ratios and percentages and discover the relationship of...
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Bisecting Angles and Segments
Students bisect angles and segments using a mira. They measure the original angles and segments and the angles and segments formed by bisecting to better see the relationship between them.
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Andromeda's Scale
Students perform a classroom activity of measuring the angular size of something from several distances. On the Internet, they obtain and examine images with various magnification factors and estimate the angular size of Andromeda.
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Gridding a Site
Pupils make observations of effigy mounds and record them in a notebook. In groups, they must determine the scale of measurement and create their own grid to scale part of the Effigy Mounds National Monument. They also practice using GPS...
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How Many Strips?
Second graders investigate the measurement of 1 meter. They predict and measure how many strips of paper it takes to make exactly one meter. Students devise and use problem solving strategies to solve the problem.
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Mr. Peanut Lab
In this peanut lab, students examine 10 different peanuts and take a variety of measurements. Using their measurements they answer 3 analysis questions.
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Escape! Survival of the Fittest Grasshopper
Fourth graders, in groups, design a paperclip grasshopper. They determine its ability to survive a prey by jumping high, far, or with a distracting behavior.
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Million Dollar Gift
Third graders create a box big enough to hold a million dollars. This is a project fun to do near the winter holidays with inexpensive gifts included in the boxes. This hands-on lesson plan very effectively demonstrates the concept of...
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Conservation Station
Second graders, in groups, measure the volume of four containers that vary in shape and size.
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"Use an Anemometer," said the Meteorologist
Students work in groups to make an instrument the Meteorologists use to measure the speed of the wind after the teacher reads them a poem about the wind. Students then review vocabulary that they studied from their lesson.
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Math: Arcs and Chords
Learners draw diagrams demonstrating how it is possible to two central angles to be congruent and their minor arcs are not congruent. In groups, they illustrate theorems with their constructed circles, create diameters of circles that...
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Around and Around
Students create a spreadsheet to record information about circular objects. They measure and record information from a variety of objects. Students calculate the ratio of the circumference to the diameter of each object. They find the...
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Estimating Area
Fifth graders, after being given a variety of word problems to solve, find patterns to solving 3 out of 4 times. They break it down into smaller parts 3 out of 4 times and tell the method of solving 3 out of 4 times. Students complete...
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What's the Attraction?
Students experiment with magnets to determine the distances at which they attract and repel each other.
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Just a Little Bit
Second graders read the book, "Just a Little Bit" and work in groups weighing the same object with a scale. They then get a different unit of measurement, like paper clips, cotton balls, washers, or pennies and then figure out and record...
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Laws of Reflection
Learners experiment with mirrors to explore the Laws of Reflection. In this experimental lesson students develop their own experiments and follow a list of assigned steps then report what happens in their activity.
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Building a Body: Scale, Proportion, and Ratio
Students measure, analyze, and compare the ancient Egyptian canon of proportions using a mummy, painted images, and photographs of people today.
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Let's Weigh Air
High schoolers participate in an experiment to measure the weight of air by measuring the weight of the mass it displaces. They lift up a desk and a textbook using a toilet plunger, and calculate the weight of the air, or air pressure.
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A Visit to Southern Africa - Volcano
Students examine a cookie that represents pumice and lava in order to realize that lava is a composite of many rock particles. They compare and contrast pumice to the cookie by estimating, weighing, measuring and dissecting the cookie...
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A Cosmic Cafeteria
Students indentify and differentiate between transit and surface food systems. Students measure energy that is released by various foods. Students compare and contrast cooking with solar energy on earth and what they might have learned...
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The Derivation of (Pi)
Seventh graders groups measure the diameter and circumference of each of the circular objects in the room. They record their results on their student worksheets and access a computer spreadsheet program to compile their results.
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Investigation of Pot Sherds
Fourth graders review their prior knowledge on the concept of pi. Using broken pieces of pottery, they calculate the circumference from a section of the circle. In teams, they compete against one another to get the most accurate...
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Inclined Plane
Learners using clay and a toothpick, shape the clay into a "mountain" upon which they make a road that is the shortest in distance. They measure the length of their road and then make a road that is the longest in distance without...