Curated OER
Hands-On Geometry
Tenth graders construct a variety of geometric shapes and designs using a Mira, Clinometer and Geometry Flash Cards. They complete a worksheet.
Curated OER
Shapes...the Beginning of Geometry
Students identify and name basic shapes and points. In this elementary geometry lesson, students use printable cut outs to name circles, triangles, and squares before playing a game with them. They play a game of "Pin the Tail on the...
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Symmetry that is Basic and Beautiful
Students explore lines of symmetry. For this symmetry lesson, students divide and combine shapes along basic lines of symmetry. Students explore symmetry in real life objects.
Curated OER
Garden Variety Geometry
Students prepare to take the GED by reviewing basic math concepts. In this geometry instructional activity, students review vocabularies such as formula, perimeter, circumference and other important geometric terms. They convert between...
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Basic Probability
Learners explore basic probability. In this Algebra II/Geometry lesson plan, students use modeling to solve basic probability problems involving real-life applications.
EngageNY
Sine and Cosine of Complementary Angles and Special Angles
Building trigonometric basics here will last a mathematical lifetime. Learners expand on the previous lesson in a 36-part series by examining relationships between the sine and cosine of complementary angles. They also review the...
EngageNY
Triangle Congruency Proofs (part 1)
Can they put it all together? Ninth graders apply what they know about proofs and triangle congruence to complete these proofs. These proofs go beyond the basic triangle congruence proofs and use various properties, theorems, and...
EngageNY
Unknown Angles
How do you solve an equation like trigonometry? Learners apply their understanding of trigonometric ratios to find unknown angles in right triangles. They learn the meaning of arcsine, arccosine, and arctangent. Problems include...
EngageNY
Triangle Congruency Proofs (part 2)
Looking to challenge your students that have mastered basic triangle congruence proofs? A collection of proofs employ previously learned definitions, theorems, and properties. Pupils draw on their past experiences with proofs to...
Curated OER
Discovering pi
Tenth graders investigate the history of Pi and how it relates to circles. In this geometry instructional activity, 10th graders measure the circumference of a circle and the diameter of a circle. They relate these measurements to the...
Curated OER
Shapetown
Students identify basic geometric shapes. In this geometry lesson, students read the book Shapetown and identify the various shapes from the story. Students are given a sheet and draw part of a town using only shapes.
Curated OER
NON-EUCLIDEAN GEOMETRY.
Students study relationships between angles, side lengths, perimeters, areas and volumes of similar objects. In this lesson students also create and critique inductive and deductive arguments concerning congruency, similarity and the...
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The Fractal Geometry of Nature
Students identify patterns found in nature. In this algebra lesson plan, students model situation in nature using fractals. They investigate biological geometric structures and draw conclusion based on geometric concepts.
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Geometry Geopardy
Third graders participate in a game in order to review geometric concepts.
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Algebra/Geometry Institute Summer 2009
Students investigate linear equations through models. For this algebra lesson, students investigate solving one and two step equations. Review solving a basic equation before starting this assignment.
Curated OER
Geometry Finding Pentominoes
Students explore the characteristics of geometric shapes. In this geometric shapes lesson plan, students use tiles to draw pentominoes. Students participate in various learning center activities focused on configuring pentominoes.
Curated OER
Mathematics Within: Algebraic Processes and Its Connections to Geometry
Pupils analyze multiple strategies of multiplication: clustering, area model, breaking apart/decomposing, etc. They create their own strategies to approaching multiplication problems and share them with their classmates. Discussion...
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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...
Curated OER
Points, Lines, Planes, and Space
In this points, lines, planes, and space worksheet, young scholars solve word problems dealing with points, lines, planes, and space. Students complete 20 individual problems and 20 group problems.
Curated OER
Mathematical Models with Applications: Two-Point Perspective Drawing
Young scholars use interactive geometry exploration software (GES) to create a two-point perspective drawing. They explore basic geometry concepts in and geometric transformations of the model of a rectangular prism viewed from different...
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Triangle Inequality Theorems Investigation
Young scholars estimate and measure triangles. In this geometry lesson, students identify the relationship between three sides and a triangle. They use the inequality theorem to decide if a triangle will be formed or not.
Curated OER
Sphere Dressing
Geometric design makes a fashion statement! Challenge learners to design a hat to fit a Styrofoam model. Specifications are clear and pupils use concepts related to three-dimensional objects including volume of irregular shapes and...
Curated OER
Define Geometry Terms
The Common Core is intended to help all children meet high academic standards. Here is a Common Core designed lesson that is intended for learners with communication or language difficulties. The lesson is written in a narrative style...
EngageNY
Finding Systems of Inequalities That Describe Triangular and Rectangular Regions
How do you build a polygon from an inequality? An engaging lesson plan challenges pupils to do just that. Building from the previous lesson plan in this series, learners write systems of inequalities to model rectangles, triangles,...
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