Curated OER
An Introduction to Quadrilaterals
Students explore different types of quadrilaterals. Students define the terminology used with quadrilaterals. They create particular quadrilaterals based on specific characteristics of the quadrilaterals using an online tool.
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Geometry: Calculating Area
In this calculating area worksheet, students find the area of complex shapes. This one-page worksheet contains 6 multi-step problems.
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Calculating Surface Area
For this surface area worksheet, students find the surface are of cubes and rectangular prisms. This one-page worksheet contains 3 problems.
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Ratio and Proportion
Young scholars investigate ratio and proportion. In this middle school mathematics lesson plan, students write ratios and find equal ratios. Young scholars use ratio and proportion to distinguish between healthy and unhealthy...
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The Pythagorean Theorem
Seventh graders relate the Pythagorean theorem to the real world. In this algebra lesson, 7th graders identify important properties of the Pythagorean theorem and use it to solve word problems. They create a step by step plan to...
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Tessellations
Seventh graders investigate geometric shapes using tessellations. In this geometry lesson, 7th graders practice tessellations using different shapes. They create different designs using tessellations.
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Halloween Graphitti
Students complete multi-curricular activities in a Halloween themed instructional activity. In this Halloween instructional activity, students examine newspaper ads to find prices of pumpkins and use them to complete a stem and leaf...
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Ratios (Cost of a Habit)
Students consider an individual habit and its cost. They study ratios and proportions, and use that knowledge to calculate the cost of a habit over extended periods of time. write a detailed comparison of the costs.
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Properties of Triangles
Learners explore the relationship between how big a side of a triangle is and how big its opposite angle is by creating triangles using an interactive website.
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Geometry in Tessellations
Students examine tessellations and their geometric properties. Students explore the concept of tessellations and lines, planes, angles, and polygons. Students experiment with the area and perimeter of polygons. Students analyze...
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Perimeter and Area
Seventh graders develop strategies for finding the perimeter and area of large geometric figures. Through lecture and guided practice, 7th graders practice the strategy of dividing a geometric shape into smaller more manageable shapes...
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Perimeter and Circumference
In this perimeter and circumference worksheet, students observe diagrams and determine their perimeter or circumference. Diagrams include triangles, circles, parallelograms, rectangles, and composite figures. This one-page worksheet...
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Cross That Bridge
Middle schoolers create paper bridges. In this geometry and architecture lesson, groups use legal paper and paper clips to design a bridge that will hold 100 pennies. Links to mini-lessons exploring stability of different geometric...
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Education for Global Peace
Students survey the class and graph the results. In this graphing and data collection lesson, students conduct a survey to see where their shirts were produced. Individuals use software to graph the results and create a written...
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Knowing North: Understanding the Relationship Between Time and The Sun
Students determine how to find North using a watch and their shadow. In this finding North lesson, students go outside on a sunny day and work with their shadow and a wrist watch to find out which direction that North is. They examine...
Pennsylvania Department of Education
Analyzing Numeric and Geometric Patterns of Paper Pool
Young scholars use concrete and pictorial representation of geometric patterns to extend patterns. In this geometric patterns lesson plan, students identify patterns and extend them.
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Area of irregular Polygons: Historical Motivator - Lewis and Clark Adventure
Seventh graders find the area of irregular polygons. In this lesson on calculating area, 7th graders use the adventures of Lewis and Clark as motivation to learn how to calculate the area of irregular polygons.
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Assessing the quality of habitat for Monarch Butterflies
Students use different sampling methods to determine the population size and appropriate space for monarch butterflies. For this averages lesson plan, students complete word problems where they can accurately estimate the size of an...
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Iterating Linear Functions
Students use a spreadsheet to investigate data. In this algebra lesson plan, students collect and graph data on a coordinate plane. They explain properties of a linear equation both algebraically and orally.
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La Toteca- A Tropical Paradise
Students collect data on the time of the ferry. In this algebra lesson, students use the data to predict a ferry schedule. They also compute the depth where oxygen would be needed when diving.
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Geometry Assessment-"Chapter 2"
In this geometry worksheet, students match terms with definitions, and complete short answer questions about polygons and congruency.
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Leveled Problem Solving Using Proportions with Similar Polygons
In this proportions and similar polygons worksheet, students solve the problems that use proportions, rations, fractions, and similar polygons.
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Angles: Angles, Angles, Everywhere
Students estimate and accurately measure the size of angles communicate with the appropriate geometric terms and symbols to describe and name angles, lines, line segments, rays