Ohio Department of Education
I Can Name that Angle in One Measure! - Grade Eight
Collaborative groups work with geometry manipulatives to investigate conjectures about angles. They create a graphic organizer to use in summarizing relationships among angles in intersecting, perpendicular and parallel lines cut by a...
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Exploring Geometry in the Real World
Students find real-world examples of a variety of geometric shapes. They conduct research, record observations, and write descriptions. They create a classroom cityscape and highlight the information they gathered. They present an oral...
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Geometric Shapes at the OK Corral
Students explore geometry by utilizing computer software. In this shape identification lesson, students define several geometric shapes by the characteristics that classify them. Students draw and cut out geometric shapes using their...
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Triangles Introduction
Students explore geometry by drawing various shapes in class. In this triangle characteristics lesson, students identify the attributes that classify a shape as a triangle and practice using their bodies to create triangles in class....
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Fractal Fraction Fun
Students discover the interesting patterns and shapes referred to as "fractals." For this geometry lesson, students utilize pieces of colored construction paper to create the branches of a fractal tree. Students discuss the rules and...
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Area Lesson Plan
Students explore geometry by using computer applications. In this spatial measurement lesson, students discuss the difference between area, weight, volume and other forms of measurement. Students utilize computer applications to find the...
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Geometry: Lesson 6: Shapes
Fourth graders design a figure using the given geometric shapes from a set of tangrams. They manipulate common shapes to analyze and make new figures. They complete a worksheet associated with the lesson.
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The Pythagorean Theorem
Young scholars research Pythagoras and learn how to apply his theorem. They solve real life problems using the theorem and demonstrate knowledge of exponents, equations, and radicals. Students include diagrams in their research papers.
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Geo Jammin' By DeSign - Day 2, Lesson 9: Bringing It To A Fine Gloss-ary
Pupils create a glossary of geometric terms while exploring tangram manipulatives.
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Quandaries, Quagmires, and Quadrilaterals
Students classify, flip, slide, and turn a quantity of quadrilaterals.
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Exploring Tessellations
Fifth graders examine how to make tessellations. In this tessellation lesson, 5th graders review the meaning of the word "polygon" while the teacher shows them various examples. They practice making tiling patterns or tessellation's with...
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What are Fractals?
Middle and high schoolers identify and analyze fractals and research information using the Internet to locate information about them. They look at fractals in relation to nature and other real world situations. Pupils create several...
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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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Speaking Geometrically
Fourth graders are introduced to the vocabulary needed to identify the attributes of two and three-dimensional figures. They work together to create a word wall, which contains the geometric terminology being learned.
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Tiling the Plane
Young scholars use pattern blocks and triangular grid paper to review shape names, be introduced to the concept of a tiling of the plane, and determine which pattern blocks tile the plane. They are asked: "Have you ever seen a floor or...