Current TEKS New 8th grade TEKS Current TEKS New HS TEKS 2013-14 2014-15 8.4A use similar right triangles to A.6A develop the concept of A.3A determine the slope of a develop an understanding that slope as a rate of change and line given a table of values, a slope, m, given as the rate determine slopes from graphs, graph, two points on the line, and comparing the change in y-values tables, and algebraic an equation written in various to the change in (y2 representations forms, including , , and x-values, – y1) / (x2 x1), is the same for – any two points (x1, y1) and (x2, on the same line y2) 8.4B graph proportional A.6B interpret the meaning of A.3B calculate the rate of change relationships, interpreting the unit slope and intercepts in situations of a linear function represented rate as the slope of the line that using data, symbolic tabularly, graphically, or models the relationship representations, or graphs algebraically in context in mathematical and real-world problems. A.6B interpret the meaning of A.3B calculate the rate of change slope and intercepts in situations of a linear function represented using data, symbolic tabularly, graphically, or representations, or graphs algebraically in context in mathematical and problems.
Current TEKS New 8th grade TEKS 2013-14 2014-15 Current TEKS New HS TEKS 8.4A use similar right triangles to develop an understanding that slope, m, given as the rate comparing the change in y-values to the change in x-values, (y2 – y1) / (x2 – x1), is the same for any two points (x1, y1) and (x2, y2) on the same line A.6A develop the concept of slope as a rate of change and determine slopes from graphs, tables, and algebraic representations A.3A determine the slope of a line given a table of values, a graph, two points on the line, and an equation written in various forms, including , , and 8.4B graph proportional relationships, interpreting the unit rate as the slope of the line that models the relationship A.6B interpret the meaning of slope and intercepts in situations using data, symbolic representations, or graphs A.3B calculate the rate of change of a linear function represented tabularly, graphically, or algebraically in context in mathematical and real-world problems. A.6B interpret the meaning of slope and intercepts in situations using data, symbolic representations, or graphs A.3B calculate the rate of change of a linear function represented tabularly, graphically, or algebraically in context in mathematical and problems.