Principles and Standards for School Mathematics
Number and Operations Standard
Understand numbers, ways of representing numbers, relationships among numbers, and number systems
Expectations (6 - 8)
work flexibly with fractions, decimals, and percents to solve problems;
understand and use ratios and proportions to represent quantitative relationships;
Compute fluently and make reasonable estimates
Expectations (6 - 8)
work flexibly with fractions, decimals, and percents to solve problems;
understand and use ratios and proportions to represent quantitative relationships;
select appropriate methods and tools for computing with fractions and decimals from among mental computation, estimation, calculators or computers, and paper and pencil, depending on the situation, and apply the selected methods;
Data Analysis and Probability Standard
Understand and apply basic concepts of probability
Expectations (6 - 8)
use proportionality and a basic understanding of probability to make and test conjectures about the results of experiments and simulations;