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 Quality Core Curriculum addressed within the InterMath Quadrilaterals Unit Sixth Grade Strand: Geometry & Spatial Sense: Measurement 12 Topic: Lines and Line Segments Standard: Uses characteristics and properties of lines and line segments to compare and contrast (i.e., geometric shapes, angles) and to establish relationships. 13 Topic: Angles Standard: Identifies the component parts of an angle, its vertex, and sides or rays; and classifies angles as acute, right, obtuse, or straight. 14 Topic: Geometric Figures Standard: Identifies lines of symmetry. 16 Topic: Geometric Figures Standard: Identifies congruent and similar geometric figures. 18 Topic: Geometric Figures Standard: Contrasts and classifies simple plane and solid geometric figures by their properties.   Seventh Grade Strand: Geometry & Spatial Sense: Measurement 17 Topic: Angles Standard: Classifies angles as acute, right, obtuse, or straight; and names angles using points, numbers, and letters. 18 Topic: Quadrilaterals, Triangles Standard: Classifies quadrilaterals and triangles based on their properties. 19 Topic: Geometric Figures Standard: Contrasts and classifies plane and solid geometric figures (polygons, cones, cylinders, prisms, pyramids). 20 Topic: Geometric Figures Standard: Compares and contrasts geometric figures with respect to congruency and similarity (scaling, dilations).   Eighth Grade Strand: Patterns & Relationships; Geometry 17 Topic: Formulas, Pythagorean Theorem Standard: Applies formulas (e.g., area, perimeter, circumference, volume, surface area), including investigating and using the Pythagorean Theorem.   Strand: Geometry & Spatial Sense: Measurement 20 Topic: Geometric Figures, Plane Figures, Solid Figures, Polygons Standard: Classifies plane and solid geometric figures based on their properties/characteristics (number or length of sides, angle measures, edges, faces, or vertices). This includes quadrilaterals (trapezoid, parallelogram, square, rectangle, rhombus); triangles (acute, obtuse, right, equilateral, isosceles, scalene); solids (prism, pyramid, cone, cylinder, sphere); and n-gons (pentagon, hexagon, octagon). 21 Topic: Geometric Figures Standard: Identifies physical and symbolic representations using appropriate labeling of geometric figures, such as points, lines, line segments, rays, polygons, vertices, angles, and diagonals. 22 Topic: Geometric Figures Standard: Uses properties to determine similarity and congruency of geometric figures. 24 Topic: Geometric Properties, Geometric Figures Standard: Uses geometric figures, properties, and relations to solve problems.