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4.G.2 2011 Domain: Geometry Cluster: Draw and identify lines and angles, and classify shapes by properties of their lines and angles. Standards: Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles. Essential Questions -How do you classify a two-dimensional figure? Content Statements - Students will learn to identify polygons. - Students will learn to identify and classify triangles - Students will learn to identify quadrilaterals - Students will solve problems by making and testing generalizations. Assessments Enduring Understandings - Two- dimensional or plane shapes have many properties that make them different from one another. Polygons can be described and classified by their sides and angles. - Two-dimensional or plane shapes have many properties that make them different from one another. Polygons can be described and classified by their sides and angles. - Two-dimensional or plane shapes have many properties that make them different from one another. Polygons can be described and classified by their sides. - Commonalities in attributes of objects or situations can be found and used to make generalizations about relationships Activities, Investigation, and Student Experiences Students will sort two-dimensional figures based on parallelism, perpendicularity, and angle types using a Venn Diagram. Students will draw quadrilaterals with diagonals. Students will investigate parallel or perpendicular lines and right triangles. Given specified criteria students will draw the figure. (example: a parallelogram with one right angle; a quadrilateral with one pair of parallel sides.) 4.G.2 -Series Assessments 2011 â€“Teacher Observation -Teacher made Assessments -Open-ended word problems Equipment Needed: Math manipulatives, available technology, pencil, paper. Teacher Resources: Series Textbook Supplemental Worksheets http://www.k-5mathteachingresources.com/4th-grade-numberactivities.html http://www.ixl.com/math/grade-4 interactive practice for individual skills across the math curriculum http://www.homeschoolmath.net/teaching/g/parallel_and_perpe ndicular.php a lesson plan on parallel and perpendicular lines http://www.mathsisfun.com/triangle.html classifying triangles http://www.internet4classrooms.com/skill_builders/geometry_m ath_fourth_4th_grade.htm Interactive activities for many geometry skills http://studyjams.scholastic.com/studyjams/jams/math/index.htm Math Movies http://www.k-5mathteachingresources.com/ illuminations.nctm.org - look for websites and lesson plans http://nlvm.usu.edu/en/nav/vlibrary.html 4.G.2 2011 www.softschools.com http://math.pppst.com/ - Many free Pre-made Power Point Presentations for Math and across the curriculum