Curated OER
Exploring Chords: Products of Chord Segments
Students identify the properties of chords. In this geometry lesson, students multiply chord segments to find the solution to their problem. They construct two chords that cross on a circles.
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Product of Chord Segments
Students creating chords intersection using circles. In this geometry lesson, students create visuals of chords ad their properties using Cabri technology. They measure the chords and explore the relationship among chords.
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A Matter of Proportion
Students measure the relative heights of the mosaic giraffe and its trainer and compare their proportions to an actual giraffe and zoo trainer.
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Measuring Supporting Structures
High schoolers calculate the volume of the Pantheon's columns and estimate changes in weight given different parameters.
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Addition and Subtraction Facts to 20
Students act out computation problems. In this addition and subtraction lesson, students act out an addition story and write an addition sentence for it. Students continue this activity and answer the provided questions.
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Triangle Exterior Angles Theorem
Students identify the measure of missing exterior angles. In this geometry lesson,students define and apply the exterior angle theorem to solve problems. They use Cabri software to create different angles and make investigations.
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Why Data
High schoolers investigate and discuss why data is important. In this statistics lesson plan, students collect, graph and analyze data. They apply the concept of data and lines to finding the rate of change of the line created by the data.
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Functions & Algebra
Students examine linear equations. In this functions and algebra lesson, students write equations in the slope-intercept form. They enter data in a graphing calculator, examine tables, and write linear equations to match the data.
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Introduction to Fractals: Infinity, Self-Similarity and Recursion.
This lesson introduces high schoolers to the ideas involved in understanding fractals. They develop a sense of infinity, self-similarity and recursion and
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Anything I Can Do You Can Do Better
Students complete a two-week unit involving design and construction concepts. They watch a PowerPoint presentation about geometric shapes, draw the fourteen shapes incorporated in bridge construction, and in small groups design, build,...
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Linear Relationship
Learners use a graphing calculator to examine the association between the data points and equation of a linear relationship. They write equations in slope- intercept form. Answer key included.
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Changes in Force, Motion, and Energy
Eighth graders construct various machines and compare the work done by them.
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What is a Tangram?
Students identify a tangram. In this geometry activity, students read Grandfather Tang's Story and retell each story using the tangrams on a flannel board. Students use tangrams to complete an included worksheet.
Pennsylvania Department of Education
Equal Groups
Students explore statistics by completing a graphing activity. In this data analysis lesson, students define a list of mathematical vocabulary terms before unpacking a box of raisins. Students utilize the raisins to plot data on a line...
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The Study of Urban and Suburban Environments within the Mystic River Watershed
High school students examine their own water-based environments, within the Mystic Watershed. As the learners engage in inquiry-based, hands-on projects, critical thinking skills and problem-solving, the project will lead them to cross...
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Applying Proportionality in Scale Drawings
Sixth graders examine a blue print and discuss the reasoning behind using blue prints. In this proportionality activity, students collaborate with their teammates to create a scale drawing. Once that is complete, 6th graders write a...
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Value Your Digits
Third graders work with place value. In this place value lesson plan, 3rd graders write three digit numbers and tell the place value of each number. They compare numbers and money, regroup, discuss the value of coins, and count money.
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"Water is Life" Global Water Awareness
Students examine and calculate the percentage of potable water remaining on the earth. In this ecology and geography lesson plan, students brainstorm the main factors affecting water distribution. Students use mathematical problem...
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2.0 "Water Is Life" Global Water Awareness Mini-Unit (Grades3-5)
Students study the amount of potable water on the Earth. For this water lesson, students examine the amount of potable water as compared to all the water on the Earth. They discuss why many parts of the world do not have access to good...
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How many edges do I need to cut in order to open a cube?
Students problem solve to open a cube to create different shapes. In this problem solving lesson plan, students are given a cube and the shapes to open it up to, and they have to cut the cube open to make certain shapes. This gives them...
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Follow the Road to Riches
Students study the story of gold and silver mining in the San Juan region. Through the use of interactive video and the Internet, they will examine the various events occurring at this time. They create a timeline highlighting the major...
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Giant Mystery
Third graders determine the relationship between hand size and body size using centimeters as the unit of measure, They use the relationship to find the size of a hypothetical giant. They graph the measurements using a spreadsheet program.
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Multiplication Matrix
For this finding the products worksheet, students solve multiplication facts to fill in the blanks in the twelve by twelve grid. Students solve 144 problems.
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The Magic Squares
Fifth graders devise and use problem solving strategies to solve a magic square arrangement. In small groups they explore various strategies including non-algebraic and algebraic techniques, write an explanation of their solution, and...