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Explorations in Explorations in GeometryGeometry
Explorations in Explorations in GeometryGeometry
Group 3:Group 3:Theresa AbromitisTheresa Abromitis
Stephen KishStephen KishKimberly KozarKimberly Kozar
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Background Information
Subject: Mathematics (Geometry)
Grade Level: 6th Grade
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Standards• “Analyze characteristics and properties of two- and three- dimensional
geometric shapes and develop mathematical arguments about geometric relationships.”
Describe using specific vocabulary and classify relationships among types of triangles, polygons, quadrilaterals (trapezoids, parallelograms, rectangles, rhombi, squares) using their defining properties.
Develop concept of congruence. Describe using specific vocabulary parts of a circle.• “Use visualization, spatial reasoning, and geometric modeling to solve
problems.” Draw geometric objects (squares, triangles and rectangles) with
specified properties, such as side lengths or angle measures . Recognize and apply geometric ideas and relationships in areas outside
the mathematics classroom, such as stained glass windows or quilt patterns.
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Standards con’t• The specific technology standards that are addressed through the use
of “Explorations in Geometry” are: Students use technology tools to enhance learning, increase
productivity, and promote creativity. Students use technology resources for solving problems and making
informed decisions.• The specific technology performance indicators that are addressed
through the use of “Explorations in Geometry” are: Use content-specific tools, software, and simulations (e.g.
environmental probes, graphing calculators, exploratory environments, Web tools) to support learning and research.
Apply productivity/multimedia tools and peripherals to support personal productivity, group collaboration, and learning throughout the curriculum.
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Goal• The goal of this power point
presentation is for students to comprehend the characteristics and properties of different types of shapes, and apply the information to various activities in order to assess their understanding.
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Polygons…Polygons are figures which have three or
more sides. A few examples are:• triangle (3 sides)• rectangle (4 sides)• pentagon (5 sides) • hexagon (6 sides) • octagon (8 sides).
Polygons can be found everywhere.
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Polygons…Which one is a triangle? A
rectangle? Pentagon? Hexagon? Octagon?
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Polygons…These examples are also known as
regular polygons. Regular means that all of the sides of the figure are the same length.
For a more detailed explanation, visit this website.
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Types of Shapes
Polygons are divided into two types of categories:
• Plane Shapes• Geometric Shapes
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Plane Shapes
• Circle• Triangle
• Quadrilaterals– Square– Rectangle– Rhombus – Parallelogram– Trapezoid
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Plane Shapes• Circle - a closed plane curve
consisting of all points at a given distance from a point within it called the center
• Triangle - a closed plane
figure having three sides and three angles
• Quadrilateral - a plane figure having four sides and four angles
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Types of Quadrilaterals• Square - a special
rectangle with 4 equal sides and 4 equal angles (all 90°).
• Rectangle - has 2 pairs of equal sides and 4 equal angles (all 90°).
• Rhombus - has 4 equal sides with opposite sides parallel and opposite angles equal.
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Types of Quadrilaterals
• Parallelogram - has opposite sides equal and parallel.
• Trapezium - has one pair of parallel sides of different lengths.
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Quadrilaterals
Test your knowledge and complete the chart
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Geometric Shapes• Rectangular Prism• Sphere• Cone• Cylinder• Cube • Pyramid
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Geometric Shapes• Rectangular Prism – A
solid figure that has two pairs of parallel opposite faces and congruent bases that are all rectangles.
• Sphere – A space figure having all of its points the same distance from the center.
• Cone – a space figure having a circular base and a singular vertex
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Geometric Shapes• Cylinder – A three
dimensional figure with two bases that are circles, not polygons, and with sides that are curved, not flat.
• Cube – A three dimensional figure with six matching square faces with three meeting at each vertex.
• Pyramid – A a three dimensional figure with 3 or more triangular faces sharing a common vertex. The base can be any type of polygon.
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Test Your KnowledgeYou have successfully reviewed
information regarding various shapes. Try this test to see how much you learned!
On the next page, complete the chart to show many shapes your remember!
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Using Shapes in Computer Programs
Next you will see two programs in which you can use the shapes you have learned to create pictures as well as show your understanding.
Please open either Inspiration or Kidspiration and complete the activity.
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Additional Resources• http://www.mathleague.com/help/geometry/polygons.htm • http://www.mathleague.com/help/geometry/3space.htm • http://www.coolmath4kids.com/tesspagl.html may be able
to get some ideas from this site• http://www.math.com/homeworkhelp/Geometry.html and
go to polygons• http://nlvm.usu.edu/en/nav/topic_t_3.html and go to
grades 6-8. Great visual tasks!!• http://www.gamequarium.com/geometry.html and go to
Geometric Matching, Assemble the Square and Geo-Matho• http://mathforum.org/dr.math/faq/formulas/faq.figuredef.ht
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