8.14B Include problems involving finding Use a problem-solving model a leg when the length of a leg that incorporates and the hypotenuse of the triangle. understanding the problem, making a plan, carrying out Example: the plan, and evaluating the How much farther does Karva walk if she solution for reasonableness. walks from her house to school and then to Process Standard the bookstore than if she walks from her house to the bookstore? Justify your 8.15A answer. (about 0.8 mile) Communicate mathematical ideas using language, efficient tools, appropriate units, and graphical, numerical, physical, or algebraic mathematical models. Process Standard 8.16B Validate his/her conclusions Evaluate solutions for reasonableness. using mathematical properties and relationships. Process Standard 8.4A 2,3 4 Graph translations and reflections. TAKS Mathematics TAKS Mathematics Preparation Generate a different Preparation Grade 8 Grade 8 (Region 4) 3 “Objective representation of data given (Region 4) Selected Response Questions,” “Coordinate Predict placement before graphing. another representation of data Translation Lesson.” 4. Determine how an ordered pair (such as a table, graph, changes under a specific translation or equation, or verbal TAKS Mathematics reflection (under a given rule). description). Preparation Grade 8 (Region 4) Readiness Standard “Coordinate Example: Reflection Lesson.” 8.6B If point A (–3, 2) is translated under the rule Graph dilations, reflections, (x 5, y), what will be the new coordinates – Rethinking Middle and translations on a of point A? School Mathematics: coordinate plane. Geometry Across the Supporting Standard TEKS (TEXTEAMS) Justify your answer. “Translations.” (–8, 2) 8.7D
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 8.16B Validate his/her conclusions using mathematical properties and relationships. Process Standard Include problems involving finding a leg when the length of a leg and the hypotenuse of the triangle. Example: How much farther does Karva walk if she walks from her house to school and then to the bookstore than if she walks from her house to the bookstore? Justify your answer. (about 0.8 mile) Evaluate solutions for reasonableness. 8.4A Generate a different representation of data given another representation of data (such as a table, graph, equation, or verbal description). Readiness Standard 8.6B Graph dilations, reflections, and translations on a coordinate plane. Supporting Standard 8.7D 2,3 4 Graph translations and reflections. Predict placement before graphing. Determine how an ordered pair changes under a specific translation or reflection (under a given rule). Example: If point A (–3, 2) is translated under the rule (x – 5, y), what will be the new coordinates of point A? Justify your answer. (–8, 2) TAKS Mathematics Preparation Grade 8 (Region 4) “Coordinate Translation Lesson.” TAKS Mathematics Preparation Grade 8 (Region 4) “Coordinate Reflection Lesson.” Rethinking Middle School Mathematics: Geometry Across the TEKS (TEXTEAMS) “Translations.” TAKS Mathematics Preparation Grade 8 (Region 4) “Objective 3 Selected Response Questions,” 4.
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