TEKS: Chapter 111. Mathematics See All Teacher Resources

111..26.b.4

(4) Proportionality. The student applies mathematical process standards to develop an understanding of proportional relationships in problem situations. The student is expected to:

• (A) compare two rules verbally, numerically, graphically, and symbolically in the form of y = ax or y = x + a in order to differentiate between additive and multiplicative relationships;

• (B) apply qualitative and quantitative reasoning to solve prediction and comparison of real-world problems involving ratios and rates;

• (C) give examples of ratios as multiplicative comparisons of two quantities describing the same attribute;

• (D) give examples of rates as the comparison by division of two quantities having different attributes, including rates as quotients;

• (E) represent ratios and percents with concrete models, fractions, and decimals;

• (F) represent benchmark fractions and percents such as 1%, 10%, 25%, 33 1/3%, and multiples of these values using 10 by 10 grids, strip diagrams, number lines, and numbers;

• (G) generate equivalent forms of fractions, decimals, and percents using real-world problems, including problems that involve money; and

• (H) convert units within a measurement system, including the use of proportions and unit rates.