Curated OER
Exploring Altitudes in Math
Students draw and calculate altitudes. They draw the altitude of acute, right and obtuse triangles and calculate the altitude of a triangle using the Pythagorean theorem.
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Quilting Geometry
Study geometry through the concept of quilt design. High schoolers examine the geometric shapes in various quilts and then create their own quilts using geometric shapes that fit together. In the end, they write a paragraph to...
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Prisms
In this prisms worksheet, 10th graders solve and complete 6 different types of problems. First, they find the volume of a right prism with equilateral triangles as bases. Then, students find the volume of a right prism with isosceles...
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Being a Host at This Party Is No Fun
Students define what it means to be a host of an infectious disease. In this host lesson plan, students explore and explain how a host relates to the Epidemiologic Triangle and read and discuss how the host works.
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I Spy Shapes
Students play a game in which they name geometric shapes. In this geometric shape lesson, students ask "yes and no" questions to determine which shape one of their classmates has chosen. They ask questions that lead them to the name of...
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Platonic Solids
Students identify different types of polygons. In this geometry lesson, students differentiate between convex and regular shapes. they identify the names of two and three-dimensional objects.
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Maximum and Minimum Points
In this maximum and minimum points worksheet, students solve and complete 12 various types of problems. First, they find the area of the smallest triangle given the point of intersection. Then, students find the volume of a box that has...
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Matrices
In this Algebra II learning exercise, 11th graders solve problems that involve matrix representation, matrix operations, solving systems with inverse matrices, row reduction, and systems of inequalities. The six page learning exercise...
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Tessellations
Students create tessellations. In this geometry lesson plan, students use polygons to create different patterns by rotation. They identify the reasons for polygons to create the type of tessellation it does.
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Fractals
Students explore the concept of fractals. In this fractal lesson plan, students use applets to explore Koch's Snowflake, Sierpinski's Triangle, and other fractals. Students develop these concepts through exploration and teacher guided...
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Circles
In this circles worksheet, 10th graders solve and complete 8 different types of problems. First, they find the measures of each segment given the center of a circle. Then, students find the length of a side of a triangle shown within a...
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Integers and Measurement
In this integers and measurement worksheet, students solve 24 various types of problems as defined. They reduce all fractions to lowest terms. Then, students draw a diagram and show the measurements to the proper power and pi for the...
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Exploring Similar Polygons
In this exploring similar polygons worksheet, 10th graders solve 9 various types of problems related to determining whether each polygon is similar or not. First, they write 3 equal ratios to show corresponding sides are proportional to...
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Recycling Relay Race
Students identify the reasons why recycling is important. In this recycling lesson, students practice sorting plastics into categories using recycling bins and types of plastics.
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Maximum and Minimum Problems
In this maximum and minimum problems worksheet, students solve and complete 9 various types of problems. First, they find two numbers with a given sum. Then, students find the maximum and minimum value of each equation. They also find...
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Exploring Special Segments in Triangles
Students discover that four special segments have a common intersection point. They identify the position of the intersection point in triangles. They produce conjectures about areas of the divided triangles.
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Treasure Island by Robert Louis Stevenson Literature Study Guide
Yo-ho-ho, Treasure Island can be lots of fun with the aid of a resource that guides readers' exploration of Robert Louis Stevenson's classic tale of buccaneers and buried gold. It's the glory of the read that will turn your...
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Boarding of Symmetrical Shapes
Second graders use geoboards to model polygons and to practice finding lines of symmetry.
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Comedia dell' Arte Paper Masks
Pupils create masks from the Italian Renaisance theatre and use them in one-act plays they write. they analyze the role and development of theatre in world cultures.
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Fractals and the Chaos Game
Students explore the concept of fractals. In this fractals lesson, students play the "Chaos Game" via an applet. Students place dots on the screen to recognize that they have created Sierpinski's Triangle.
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Geometry Practice: Transformations, Isometries, and Tessellations
Five pages for geometry practice relating to symmetry provide mathematicians with exercises on transformations and symmetry, properties of isometries, compositions of transformations, tessellations with regular polygons, and other...
Berkeley Engineering and Mentors
Newspaper Towers
The challenge is quite simple: build a tall tower from a predesignated number of newspaper sheets. Emerging engineers work in teams to build the tallest structure. You will demonstrate some structure shapes and discuss their relative...
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Spiral Symmetry
Taking the notion of symmetry to the next level, this looks at combining rotation and translation symmetry to build spiral symmetry in three dimensions. Using the Zome modeling system and an instructor’s guidance, geometers try to build...