Lesson Plan
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Similar triangles

For Teachers 10th
Tenth graders investigate the theorems of ASA, AAS, AAA and ASA. In this geometry lesson, 10th graders discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how two angles are formed by...
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Weights of Objects

For Teachers 9th - 12th
Students differentiate between the weights of an object on different planets. In this geometry lesson, students investigate different weights and graph their results as it relates to the different planets. They appreciate the design of...
Lesson Plan
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Indirect Measurement, Surveying Trigonometry

For Teachers 9th - 10th
Students measure distances using indirect measurements. In this geometry lesson, students apply proportion and ratios to measure heights of different objects. They differentiate between direct and indirect measurements.
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Dimension Review

For Teachers 9th - 11th
Learners differentiate the pros and cons of different areas. In this geometry lesson, students compare and contrast different sizes based on their area. They put an image to the size of a shape.
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Deductive and Inductive Reasoning

For Teachers 9th - 10th
Students differentiate between inductive and deductive reasoning. In this geometry instructional activity, students identify congruent figures and examine logos for congruency.
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What's the Best Deal?

For Teachers 3rd - 5th
Students explore number sense by solving consumer math problems. In this pattern identification lesson plan, students analyze a list of numerical and geometric patterns while predicting the future outcome. Students utilize inference...
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Bedroom Redecoration Project

For Teachers 5th - 7th Standards
In this bedroom redecoration project, your young mathematicians become interior designers. They plan, draw, and determine finances for the project. They apply their knowledge of working with decimals, geometric shapes, and problem...
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CSI Investigation of Congruence and Similarity

For Teachers 9th - 12th
High schoolers differentiate between similarity and congruence using polygons. In this geometry lesson, students label triangles based on their properties. They find missing sides and angles using the interior sum theorem.
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Making Parallel Lines

For Teachers 8th - 10th
Students differentiate between parallel and perpendicular lines. In this geometry lesson, students make conjectures and apply it to solve real life situations. They collect data and make predictions based on the data.
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An Introductions to Congruent Polygons

For Teachers 8th - 10th
Students differentiate between similar and congruent polygons. For this geometry lesson, students define the theorems and reasons for polygons similarity and congruence. They are given pictures and patterns to differentiate and identify.
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Proportional Similarities

For Teachers 8th - 10th
Students model the geometric relationship with graphing. In this geometry lesson, students differentiate between parallel, perpendicular, similar and congruent shapes. They use properties of polygons to differentiate their shapes...
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Exploring Areas of Irregular Polygons

For Teachers 9th - 12th Standards
Students solve for the area of different polygons. In this geometry lesson, students identify and differentiate between regular and irregular polygons. They use properties of irregular polygons to solve problems.
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Geometric Basketball Court

For Teachers 8th - 10th
Students calculate the area and perimeter of a basketball court. In this geometry lesson, students differentiate between similarity and congruence of geometric objects. They test conjectures and use it to solve problems.
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Connecting Translations, Reflections, and Rotations

For Teachers 9th - 12th Standards
Learners differentiate between translation, reflection and rotation. They explore the 3 types of transformation using Cabri Jr. and build on previous knowledge in this instructional activity.
Worksheet
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Logic Homework

For Students 9th - 10th
In this algebra worksheet, students use Venn diagrams to differentiate between rational and irrational numbers. They solve word problems using algebraic expressions. There are 14 questions.
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Analyzing Body Angles

For Teachers 10th - 12th
Learners investigate angles of polygons. In this geometry instructional activity, students identify the relationship between angles and the number of sides in a polygon. They differentiate between sumilarity anf congruence in angles and...
Lesson Plan
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Mathematics in Robotics

For Teachers 10th - 12th
Students build and create using math. In this geometry lesson, students differentiate between congruent and similarity as they observe polygons. They create robots with different functions using properties of geometry.
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Pyramids on Parade/Nets

For Teachers 8th - 11th
Learners sketch the shape of three dimensional pyramids using nets. For this geometry lesson, students differentiate a pyramid from other three dimensional shape. They define the attributes of pyramids.
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Sketching Spheres

For Teachers 8th - 10th
Students investigate spheres through sketches. In this geometry lesson, students sketch two and three dimensional shapes creating nets. They find and differentiate between the nets for prisms, pyramids, cones, cylinders and spheres.
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Angles Lesson Plan

For Teachers 9th - 10th
Young scholars explore the relationship of angles as it relates to 2 and 3-D shapes. In this geometry lesson plan, students differentiate between acute, obtuse, right, alternate interior, exterior and adjacent angles. They...
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Transformations-Translations

For Teachers 10th - 11th
Learners perform transformations and translation on a coordinate plane. In this geometry instructional activity, students move shapes around on a graph identifying translation, image, and transformation. This instructional activity has...
Worksheet
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Similar Polygons

For Students 9th - 10th
In this geometry worksheet, learners solve problems dealing with polygons. They differentiate between similar and congruent polygons. There are 18 questions with an answer key.
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Compass Designs

For Teachers 8th - 10th
Students investigate the properties of two and three dimensional objects. In this geometry lesson, students differentiate polygons based on similarity and congruence. They make observation and interpret the data.
Lesson Plan
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Studying Special Segments in Triangles

For Teachers 8th - 10th
Students investigate special segments in triangles. In this geometry lesson, students graph, compare, estimate and predict findings based on their data. They differentiate between similarity and congruence of triangles.