Curated OER
Trig River
Students calcute distances using trigonometry and angle measurements.  They estimate the width of the Trig River, measure it and compare their results with their classmates.  They collaborate with a group to research and find the results.
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Out of This World and Into Our Classroom
Learners complete a background survey on technology to determine where they need to focus on to complete this project.  Using the Internet, they research a topic in Astronomy they are interested in and determine what math concepts are...
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Spreadsheets in Science
Fourth graders create spreadsheets, explore patterns and make predictions based on the information. They select the appropriate graph to display the spreadsheet data. They search and sort prepared data bases to gain knowledge for...
University of Rhode Island
The Interactive Boston Computer Museum Tour
Fifth graders use the Internet to use an interactive program which helps them explain the Internet better. They take a tour of a computer museum and focus on how the Internet works through an exhibit.
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Statistical Pictures of School and Life
Students explore how mathematical data is used to summarize and illustrate everyday life. They apply mathematical concepts and skills to analyze data. Students conduct a five question survey of 50 people or more and graph the data.
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Patterns: A Stitch in Time
Learners recognize shapes, designs and numbers that form patterns. Using their surroundings, they identify common patterns. They create their own patterns in various software programs and share them with the class.
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Bridge Design and Bridge Building
Seventh graders conduct an investigation into the design of bridges and their construction. Students design bridges and draw detailed plans.  For assessment they construct a model of a bridge that is made entirely of toothpicks. Students...
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Estimating With Fractions
Seventh graders, exploring methods to estimate fractions, take notes on estimating fractions, 7th graders write letters to explain the process of estimating fractions and mixed numbers to someone who does not know the concept.  Students...
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Snowflake Curve
Students develop an appreciation for complex structures in nature. They observe patterns in nature in relationship to the Real World. Students use observation skills to assist in problem solving. They show comprehension of the concepts...
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MathKeys Software "Unlocking Whole Numbers, Vol 2 (Rolling the Highest Number)"
Third graders arrange four numbers in order to make the highest number possible. In this place value lesson plan, 3rd graders practice working with four digit numbers on the computer and with base ten blocks.
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Place Value
Fifth graders explore number meanings and their relationship.  Using place value clues and base-ten blocks, 5th graders build a models of numbers and determine their value.  To reinforce number relationship, students participate in a...
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Diameter, Radius and Area
Students calculate the diameter, radius and area of a circle. In this geometry lesson, students investigate the different ratios of a circle. They calculate the surface are of each circle.
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Exploring Teen Numbers
Students explore place value.  In this numeration lesson, students use ten frames to represent numbers greater than ten.  Students read two digit numerals and build the corresponding number using counters and ten frames. ...
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MathKeys Software "Unlocking Whole Numbers, Vol. 11(Place Value for Four Digit Numbers)"
Third graders explore the place values of four digit numbers by writing four digit numbers and examining the effects of rearranging the numbers' digits. They practice making their four digit number with base-ten blocks then rearrange the...
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Rounding to the Nearest Ten
Third graders review rounding to the nearest ten. In this rounding instructional activity, 3rd graders use a hundred chart to help them in rounding to the nearest ten. Additionally, students practice rounding on the computer.
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Exploring Multiplication Functions
Fourth graders investigate the terms "factor" and "product." In this mathematics lesson, 4th graders practice solving problems to find the products and factors present in different algebraic expressions.
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Finding Area
Fourth graders explore how to find the area of a rectangular object.  As a class, they discuss definition of area and strategies for finding area.  The teacher models finding the area of an object by counting squares.  Students observe...
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Base-Ten Rounding
Fifth graders explore the base-ten rounding method.  Using base-ten blocks, 5th graders build two-, three-, and four-digit numbers.  After discussion, they round numbers to the nearest 10.  Using the computer, students participate in a...
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Building Numbers
Fifth graders use place value clues to find a given number. In this place value lesson, 5th graders work with the MathKeys program using place value clues and base-ten blocks to build a number and determine its value.
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The Ultimate Vacation
Students use research skills to solve a problem. They research information needed to plan a vacation. Students create a letter, a flyer, an itinerary, an activity list, cost spreadsheet, a reference page, table of contents and a title page.
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A Measuring Adventure
Learners practice measuring items. In this measurement lesson, students read the book Measuring Penny and create their own system of measurement. Learners measure various items in the classroom, using their creative measurement system.
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What's My Rule? Simple Linear Functions
Students investigate simple linear functions by trying to guess a function rule from inputs and outputs. They write the function rule in algebraic form.
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Mathematics in Art?
Fifth graders view prints of M.C. Escher's work. They look at examples of geometric figures and polygons and discuss places they have seen them. Students create their own tessellations. They write a report about the process they used in...
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House Floor Plans
Sixth graders investigate the mathematical concept of area. They are given a certain square footage and asked to draw the initial floorplan for a house. Students use computers to create the plan. To finish the drawing it must include the...