Geometry

Measuring Angles Triangles
 * @http://www.abcya.com/measuring_angles.htm
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 * @http://www.pdesas.org/module/content/resources/13281/view.ashx This website gives a tutorial on the attributes of polygons and a quiz for students to assess their understanding.
 * @http://www.learnalberta.ca/content/me5l/html/Lessons/17/Notes/m5_polygons_assessment.pdf This site has a worksheet that requires students to categorize polygons by their attributes.
 * http://www.mathsisfun.com/geometry/polygons.html This site has an explanation about what is and what isn’t a polygon
 * http://illuminations.nctm.org/ActivityDetail.aspxID=202 Creating Patterns to Cover the Screen Using Regular Polygons
 * @http://illuminations.nctm.org/ActivityDetail.aspx?ID=27 Designing a Pattern Using Geometric Shapes
 * @http://www.coolmath.com/lesson-interior-angles-of-polygons-1.htm This site shows how to find the interior angles of a polygon.
 * @http://www.aaamath.com/g4_318x1.htm This site has information about sides and angles of various polygons
 * http://www.aaamath.com/g4_318x2.htm#section2 This site provides practice at identifying various polygons based on sides and angles.
 * @http://www.aaamath.com/g4_318x3.htm Students identify triangle types based on their angles.
 * @http://www.aaamath.com/g4_318x4.htm Students identify triangle types based on their sides.
 * @http://illuminations.nctm.org/ActivityDetail.aspx?ID=24 Use this tool to investigate symmetry. You can rotate, flip, or reflect a figure across a line.
 * @http://www.math-play.com/shapes-game.html This game of concentration asks the students to match geometric shapes
 * @http://www.math-play.com/geometric-figures-game/geometric-figures-game.html Students distinguish between 2-D and 3-D figures.
 * @http://scratch.mit.edu/projects/DrSuper/267650 Students use this interactive website to build various geometric shapes.
 * @http://www.mathopenref.com/polygonirregular.html This site allows students to change the shapes of polygons by increasing the number of sides and moving the vertices. It then tells them whether the shape is a concave or convex polygon.
 * @http://www.321know.com/geo612x5.htm Students find the third angle in a triangle when the first two angles are given. It has a record sheet to check student progress.
 * http://nlvm.usu.edu/en/nav/vlibrary.html National Library of Virtual Manipulatives