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Circumference and Area of a Circle
Students investigate the area and circumference of a circle. In this geometry lesson, students estimate and measure the radius, diameter and circumference of a circle. This assignment has an online part that is interactive.
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This Building is Tall
Students calculate the perimeter of shapes. In this geometry lesson, students relate properties of polygons to the real world. They find length, midpoint and slope.
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Slit the Width
Students calculate the circumference and diameter of a circle. In this geometry instructional activity, students construct a circle and calculate the distance of different sizes of circles. They define the relationship between the...
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Consistent Circles
Students create a design of a circle. In this geometry lesson, students identify the measure of the diameter and radius of a circle. They graph and analyze their collected data and write equations based on direct variation.
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Cannonball
Young scholars calculate the speed, motion and distance of a projectile. In this geometry lesson, students obtain measurements while calculating velocity. They graph their results and make predictions.
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Surface Area of Cubes and Rectangular Prisms
Eighth graders calculate surface area of 3-D shapes. In this geometry lesson, 8th graders analyze cubes and prisms by finding their area and surface area. They compare the data of these two shapes.
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Polygon Perimeters
Students define the terms polygon and perimeter to begin the lesson. Using a calculator, they practice determining the perimeter of various symbols in a painting. They discuss how geometry and art are related to one another.
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Altitude Locator
Students use protractors, strings, and straws to construct a device used to determine the height of tall objects. In this applied geometry lesson, students use common objects to construct a tangent height guide. They use principles of...
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Can You Canula?
Students calculate the circumference of a circle. In this geometry lesson, students measure the diameter of a circle using micrometers or calipers. They investigate the relationship of the diameter to that of the value of Pi.
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Marshmallow Towers
Young scholars explore geometry by completing a marshmallow activity in class. In this architecture lesson, students identify the jobs of civil engineers and architects while identifying different geometric shapes as well. Young scholars...
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Crop Circles
Students calculate the area and circumference of a circle. In this geometry lesson, students solve word problems with circles and create formulas to calculate the area. They find the rate and complex area of a circle.
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Got Complements? with Cabri Jr.
Learners use the axes and measure angle tool to explore and calculate complementary angles with Cabri Jr. They also identify what happens to the calculation as they drag the endpoint into a different quadrant. Finally, they label each...
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Mini-Metric Olympics
Eighth graders participate in the mini-metric Olympics. In this measurement lesson, 8th graders solve real-world problems that require them to calculate length, area, and volume in metric units.
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An Application of Congruence
Students solve triangles using the properties if congruency. In this geometry activity, students apply congruent and similar figures to solve real world and math problems. They show they are able to follow instructions.
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Dilation
Tenth graders identidy and define various geometry terms, Students create exact replicas of a shape that is either smaller or larger than the original shape. Students prove that their entire shapes are larger or smaller in the same...
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Navy Sail Design
Students use the Pythagorean Theorem to explore sailboat design. In this Pythagorean Theorem lesson, two sides of a triangular sail are measured, and the theorem is used to calculate the third side. A worksheet, bulletin board design,...
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Area of Composite Figure.
Tenth graders predict the shape of a geometric figure in 3D. In this geometry lesson, 10th graders construct 3D shapes to perfect their knowledge of measuring and predicting. This assignment is also available as an online interactive...
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Volume of a Cylinder
Students predict the shape of a geometric figure in 3D. In this geometry activity, students construct 3D shapes to perfect their knowledge of measuring and predicting. This assignment is also available as an online interactive...
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What You See Is Not Always What You Get!
Students estimate and calculate the distance of a shape. In this algebra lesson, students differentiate between a horizontal distance and it's reflected image. They measure the reflection and the point starting at the eye of the observer.
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Design a Track
Learners investigate track and field dimensions, measure an actual track, and construct a scale model. The use of a meter stick, dimensional analysis, and the application of the distributive property to variables forms the main focus of...
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Geometers Sketchpad Practice
Students create polygons using geometers sketchpad. In this geometry instructional activity, students construct the interior angles of polygons and label the different points. They estimate and measure the different parts as they draw...
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Using Concept Maps to Design 3D Spheres
Students create three dimensional shapes using concept maps. In this geometry lesson, students investigate the impact of mental schemas on humans. They collect data on this topic and plot their data on a coordinate plane.
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Sketch Up
Students estimate and measure exact. In this geometry lesson, students create different object in three-dimensional pattern. They use SketchUp to create their shape and perform measurements on their shapes.
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Triangle Puzzler
Students are introduced to some basic concepts of geometry. They explain that the definition of a triangle is a figure with three sides, three angles, and three points. Triangles can be named by using three points in their correct sequence.
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