Students know the properties of and compute with rational numbers expressed in a variety of forms. Students use exponents, powers, and roots and use exponents in working with fractions. 2.1 understand negative whole number exponents. Students express quantitative relationships using algebraic terminology, expressions, equations, inequalities and their graphs. 1.5 represent quantitative relationships graphically and interpret the meaning of a specific part of a graph in terms of the situation represented by the graph 2.
Students interpret and evaluate expressions involving integer powers and simple roots.
2.1 interpret positive whole number powers as repeated multiplication and negative whole numbers as repeated division or multiplication by the multiplicative inverse. Simplify and evaluate expressions that include exponents. Students graph and interpret linear and some non-linear functions. Fit a line to the plot and understand that the slope of the line equals the quantities. Students solve simple linear equations and inequalities over the rational numbers.