7.13D select tools such as real objects, manipulatives, paper/pencil, and technology or techniques such as mental math, estimation, and number sense to solve problems 6.1C/7.1C/8.1C select tools, including real objects, manipulatives, paper/pencil, and technology, as appropriate and techniques, including mental math, estimation, and number sense, as appropriate to solve problems 7.14A communicate mathematical ideas using language, effective tools, appropriate units, and graphical, numerical, physical, or algebraic mathematical models 6.1D/7.1D/8.1D communicate mathematical ideas, reasoning, and their implications using multiple representation, including symbols, diagrams, graphs, and language as appropriate 7.14B evaluate the effectiveness of different representations to communicate ideas 6.1E/7.1E/8.1E create and use representations to organize, record and communicate mathematical ideas 7.15A make conjectures from patterns or sets of examples and non-examples 6.1F/7.1F/8.1F analyze mathematical relationships to connect and communicate mathematical ideas 7.15B validate his/her conclusions using mathematical properties and relationships 6.1G/7.1G/8.1G display, explain and justify mathematical ideas and arguments using precise mathematical language in written or oral communications 7.2 The student applies mathematical process standards to represent and use rational numbers in a variety of forms. The student is expected to: Instructional Considerations
Current TEKS New 7th Grade TEKS 2013-14 2014-15 Current TEKS New 8th grade TEKS 7.4A generate formulas involving unit conversions within the same system (customary and metric), perimeter, area, circumference, volume, and scaling 7.4B graph data to demonstrate relationships in familiar concepts such as conversions, perimeter, area, circumference, volume, and scaling 7.4A represent constant rates of change in mathematical and problems given pictorial, tabular, verbal, numeric, graphical, and algebraic representations, including d = rt 8.2D use multiplication by a given constant factor (including unit rate) to represent and solve problems involving proportional relationships including conversions between measurement systems 8.5A represent linear proportional situations with tables, graphs, and equations in the form of y= kx 7.2D use division to find unit rates and ratios in proportional relationships such as speed, density, price, recipes, and student-teacher ratio 7.4B calculate unit rates from rates in mathematical and problems None 7.4C determine the constant of proportionality (k = y/x) within mathematical and real-world problems 8.3B estimate and find solutions to application problems involving percents and other proportional relationships such as similarity and rates 8.5E solve problems involving direct variation
7.6H problems using qualitative and quantitative predictions and comparisons from simple experiments None 7.7 The student applies mathematical process standards to represent linear relationships using multiple representations. The student is expected to: Instructional Considerations Current TEKS New 7th Grade TEKS 2013-14 2014-15 Current TEKS New 8th grade TEKS 7.7 represent linear relationships using verbal descriptions, tables, graphs, and equations that simplify to the form y = mx + b 8.4 generate a different representation of data given another representation of data (such as a table, graph, equation, or verbal description) 8.5B represent linear relationships with tables, graphs, and equations in the form of y = mx + b, where b does not equal zero
7.12A compare two groups of numeric data comparative dot plots or box plots by comparing their shapes, centers, and spreads 8.11B determine the mean absolute deviation and use this quantity as a measure of the average distance data are from the mean using a data set of no more than 10 data points 7.11B make inferences and convincing arguments on an analysis of given or collected data 7.12B use data from a random sample to make inferences a population None 7.12C compare two populations based on data in random samples from these populations, including informal comparative inferences about differences between the two populations 8.11C simulate generating random samples of the same size from a population with known characteristics to develop the notion of a random sample being representative of the population from which it was selected 7.13 The student applies mathematical process standards to develop an economic way of thinking and problem useful in one’s life as a knowledgeable consumer and investor. The student is expected to: Instructional Considerations Current TEKS New 7th Grade TEKS 2013-14 2014-15 Current TEKS New 8th Grade TEKS
7.13A calculate the sales tax for a given purchase and calculate income tax for earned wages None 7.13B identify the components of a personal budget, including income, planned savings for college, retirement, and emergencies, taxes, and fixed and variable expenses, and calculate what percentage each category compromises of the total budget None 7.13C create and organize a financial assets and liabilities record and construct a net worth statement None 7.13D use a family budget estimator to determine to determine the minimum household budget and average hourly wage needed for a family to meet its basic needs in the student’s city or another large city nearby None 7.13E calculate and compare simple interest and compound interest earnings 8.12D calculate and compare simple interest and compound interest earnings