2-D Figures
1/11/2016
Common Core State Standards:
4.G.2 Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of a specified size. Recognize right triangles as a category, and identify right angles. Essential Vocabulary: quadrilateral isosceles trapezoid trapezoid rhombus parallelogram rectangle square right triangle right obtuse acute attributes parallel perpendicular congruent equilateral isosceles scalene kite Unit Overview: In this unit, students will build upon their understanding of identifying various shapes through attributes. In this unit students will focus on identifying parallel lines and perpendicular lines while identifying the angles used from the previous units: acute, obtuse, and right. Students will investigate the concept of “same size and same shape”; however, the concept of congruence and similarity do not appear until middle school. Strategies/Skills: Students will build on their understanding of geometric shapes and go further with identifying and measuring angles. Students will model mastery of this concept through the following ways: drawing identifying analyzing Video Support o Classify two-dimensional figures by examining their properties https://learnzillion.com/lessons/2879-classify-twodimensional-figures-by-examining-their- properties o Classify triangles by examining their properties https://learnzillion.com/lessons/3040-classify-triangles-by-examining-their-properties o Classify right triangles https://learnzillion.com/lessons/3069-classify-right-triangles o Classify various quadrilaterals by describing their properties https://learnzillion.com/lessons/2936-classify-various-quadrilaterals-by-describing-their- properties o Classify quadrilaterals by examining their sides https://learnzillion.com/lessons/2937-classify-quadrilaterals-by-examining-their-sides o Classify parallelograms by examining their angles and sides https://learnzillion.com/lessons/2988-classify-parallelograms-by-examining-their-angles-and- sides
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Mrs. Ana RhyneI teach 4th grade math and science at Weatherstone Elementary School. I graduated from Meredith College with a BA in Spanish and K-6 licensure. Archives
May 2016
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