5 
 describe multiplicative relationships between quantities by using simple fractions and decimals (e.g., "If you have 4 plums and I have 6 plums, I can say taht I have or 1.5 times as many plums as you have.");

6 
 determine and explain, through investigation using concrete materials, drawings, and calculators, the relationships among fractions, decimal numbers and percents.

7 
 divide whole numbers by simple fractions and by decimal numbers to hundredths, using concrete materials;

7 
 determine, through investigation, the relationships among fractions, decimals, percents, and ratios;

8 
 use estimation when solving problems involving operations with whole numbers, decimals, percents, integers, and fractions, to help judge the reasonableness of a solution;

8 
 represent the multiplication and division of fractions, using a variety of tools and strategies;

8 
 solve problems involving addition, subtraction, multiplication, and division with simple fractions.

9D 
 simplify numerical expressions involving integers and rational numbers, with and without the use of technology;

9D 
 solve problems requiring the manipulation of expressions arising from applications of percent, ratio, rate, and proportion;

9D 
 determine, through investigaion, various formulas for the slope of a line segment or to determine the slope of a line segment or a line;

9D 
 identify, trhough investigation, various formulas for the slope of a line segment or to determine the slope of a line segment or a line;

9F 
 solve problems requiring the expression of percents, fractions, and decimals in their equivalent forms
