Locate and name points on a Determine the factor of a dilation coordinate plane using given the original figure and the dilated ordered pairs of rational figure on a coordinate plane. numbers. Supporting Standard Example: 8.14A Triangle ABC was dilated to form triangle Identify and apply DEF. mathematics to everyday experiences, to activities in and outside of school, with What number represents the scale factor other disciplines, and with used to change triangle ABC into triangle other mathematical topics. DEF? Process Standard Justify your answer. (The scale factor is 2.) 8.14B Use a problem-solving model Determine the relationship (rule) that incorporates between ordered pairs of the understanding the problem, original image and the dilated image. making a plan, carrying out (Students should be able to explain the the plan, and evaluating the presence of the scale factor in the rule solution for reasonableness. .) Process Standard Evaluate reasonableness. 8.15A Communicate mathematical ideas using language, efficient tools, appropriate units, and graphical, numerical, physical, or algebraic mathematical models. Process Standard 8.7A 3 2 Draw three-dimensional figures from TAKS Mathematics TAKS Mathematics Draw three-dimensional different perspectives. Preparation Grade 8 Preparation 8 (Region figures from different (Region 4) 4) 3 Selected “What’s “Objective Draw top, side, and view of a given perspectives. Your View on This? Response Questions,” 5. three-dimensional figure. Supporting Standard Lesson.” 8.14D Sketch a figure when Select tools such as real given the top, side, and front view. objects, manipulatives,
Locate and name points on a coordinate plane using ordered pairs of rational numbers. Supporting Standard 8.14A Identify and apply mathematics to everyday experiences, to activities in and outside of school, with other disciplines, and with other mathematical topics. Process Standard 8.14B Use a problem-solving model that incorporates understanding the problem, making a plan, carrying out the plan, and evaluating the solution for reasonableness. Process Standard 8.15A Communicate mathematical ideas using language, efficient tools, appropriate units, and graphical, numerical, physical, or algebraic mathematical models. Process Standard Determine the factor of a dilation given the original figure and the dilated figure on a coordinate plane. Example: Triangle ABC was dilated to form triangle DEF. What number represents the scale factor used to change triangle ABC into triangle DEF? Justify your answer. (The scale factor is 2.) Determine the relationship (rule) between ordered pairs of the original image and the dilated image. (Students should be able to explain the presence of the scale factor in the rule .) Evaluate reasonableness. 8.7A Draw three-dimensional figures from different perspectives. Supporting Standard 8.14D Select tools such as real objects, manipulatives, 3 2 Draw three-dimensional figures from different perspectives. Draw top, side, and view of a given three-dimensional figure. Sketch a figure when given the top, side, and front view. TAKS Mathematics Preparation Grade 8 (Region 4) “What’s Your View on This? Lesson.” TAKS Mathematics Preparation 8 (Region 4) “Objective 3 Selected Response Questions,” 5.
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