•  Math Module           Strand                     Description      http://mathincontext.eb.com/curriculum Number Developing a conceptual sense of ratio; estimating and calculating the effects of proportional enlargements or reductions; using scale lines; organizing data into ratio tables and calculating ratios; writing fractions as alternative expressions for equivalent situations. Algebra Applying order of operations when writing and solving a formula; interpreting relationships displayed in formulas, tables, and graphs; identifying equivalent expressions and dependent and independent variables. Number Using fractions to describe the relative magnitude of quantities; ordering fractions; understanding and performing addition, subtraction, multiplication, and division with fractions using models. Algebra Calculating with positive and negative numbers; finding absolute value; graphing inequalities; plotting coordinate pairs and finding distance using absolute value. Algebra Organizing and translating information from stories using symbols, charts, tables, and equations; using informal strategies to solve systems of equations. Number Exploring prime numbers, prime factorization, and divisibility rules; analyzing algorithms for multiplication and division; discovering and relating whole numbers, integers, rational, and irrational numbers by looking at the results of basic operations and their inverses. Geometry and Measurement Estimating and measuring regular and irregular areas; discovering links between area, perimeter, surface area, and volume; using customary and metric units. Data Analysis and Probability Exploring and analyzing measures of center (mean, median, mode, range, maximum, minimum); interpreting data displays including stem-and-leaf plots, scatterplots, box plots; and investigating sampling techniques.