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Data Analysis & Probability
Students make predictions based on survey results. They calcuate sample proportions. Students estimate the number of voters in their district preferring the democratic candidate using their sample results. They review sample proportions...
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Comparing Notes: a Mathematical Exploration of the Piano
Students examine the history of equal temperament, the modern standard of tuning a piano. Proportion calculations of octaves and perfect fifths are utilized to calculate the frequency of each note in a major scale.
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Voting Systems
Learners view many viewpoints on Britain's voting systems. Students compare/contrast various forms of electoral systems. Learners trace the steps to proportional representation.
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Protecting the Herd
High schoolers explain how immunizing a significant proportion of a population against a disease prevents epidemics of the disease (herd immunity). They list factors that affect the proportion of a population that must be immunized to...
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THE MEAN INDEX CARD
Middle schoolers cut an index card to create three similar right triangles and explore the congruencies and proportions that exist. They investigate the properties of lines and concepts of congruency, similarity, tangency and symmetry of...
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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.
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The Human Pendulum
Students examine how length, amplitude, and mass affect the period of a pendulum. They conduct an experiment that analyzes the variables affecting how a pendulum works, and identify the proportions that exist between the variables.
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Squirt
Fourth graders using the idea of "how many more squirts" fill a container to develop multiplicative thinking. They also investigate the idea of conservation of volume when working with oddly shaped containers. They attempt to use...
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Art & Culture Influence Each Other
Students compare and contrast the effects of culture upon the community and visa versa. In groups, students create Chumash style artwork and proportioned sculptures. They examine the perspective of the Renaissance Period and design...
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Lake Pepperidge Farm
Students calculate proportions to determine the total population of Lake Pepperidge Farm. They collect a blind sample of fish and count the number of tagged and untagged fish. They collect data from all samples and record the data in a...
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Eating Fruit
Students select a piece of fruit from a central table. After some discussion on ways of representing form and proportions students record as accurately as possible, the entire fruit.
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Egyptian Profile Portraits
Second graders design Egyptian style portraits. They use the correct proportions while drawing and painting the facial features.
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Revamped Recipe
Fifth graders engage in a tasty lesson plan which assist them with proportional measurements. They use a given recipe written for 12 servings, and use a chart to determine the ingredient amounts for 30 servings (or number of students in...
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Differential Equations and Population Growth
Learners determine the size of the population at a given time. They calculate the time at which the population will be a given number. They observe how the population grows at the rate that is directly proportional to the number of...
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Size It Up
Students practice their math skills in determining the water/land proportions of the Earth. Using globes, they locate the seven continents and oceans and determine which covers more space. They use this information to participate in...
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Converting fraactions and percents
Sixth graders practice the conversion of percents and fractions. They focus on the fact of both fractions and percents are part of a whole. In the independent practice the students also work with solving proportions.
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Borders, Bindings, & Edges: The Art of Finishing Your Quilt
Students explore a variety of methods used to finish quilts. They explore selection, planning, and the design process, color, proportion and scale when finishing a quilt. Students create corner triangle borders, narrow borders, pieced...
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Draw Like an Egyptian
Second graders explore Egyptian life and art and examine Egyptian figures and translate them to their own artwork. Students use objects other than paint brushes to paint. Students practice using watercolors and practice figure proportions.
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Parks Design Project
Students explore two dimensional geometric figures. They explore the relationships and measurements of geometric figures. Students apply proportion and scaling. They design a city park for students and teenagers.
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When Maine Was Part of Massachusetts
Learners analyze a map of Maine to determine its proportions in 1795. They examine Osgood Carleton's map of Maine from 1795 and complete a worksheet. They share their observations with their group and evaluate a present day map of Maine....
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Get Nutty
Students research how nuts and seeds contribute to their overall good health.They recognize that nuts and seeds are a tasty addition to a meal. Students comprehend that nuts and seeds pose a risk for a small proportion of the population...
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The Drag of Drag
Students are introduced to drag. Then they summarize drag by saying that the drag is proportional to the square of the velocity. Students then solve problems an example of such a problem: Explain why swimming underwater is faster than...
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How Long? How Tall?
Seventh graders investigate the parts of the human body and examine the symmetry of body parts like arms and legs. They measure the body parts and take individual height and weight to compare the quantities. Student examine whether the...
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Animal Jumping Puppets
Pupils investigate the proportions of body parts and learn how to create moving parts. They cut shapes with detail and learn how to attach string and tie knots. Students practice the defining vocabulary related to puppets.
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