5-8. 1.6 use number sense to estimate and justify the reasonableness of solutions to problems involving integers, rational numbers, and common irrational numbers such as square root of 2, square root of 5, and pi.
5-8.2 Students use algebraic methods to explore, model, and describe patterns and functions involving numbers, shapes, data, and graphs in problem-solving situations and communicate the reasoning used in solving these problems.
5-8. 2.1 represent, describe, and analyze patterns and relationships using tables, graphs, verbal rules, and standard algebraic notation;
5-8. 2.3 analyze functional relationships to explain how a change in one quantity results in a change in another (for example, how the area of a circle changes as the radius increases, or how a person's height changes over time);
5-8.6 Students link concepts and procedures as they develop and use computational techniques, including estimation, mental arithmetic, paper-and-pencil, calculators, and computers, in problem-solving situations and communicate the reasoning used in solving these problems.
5-8. 6.1 use models to explain how ratios, proportions, and percents can be used to solve real-world problems;