Principles and Standards for School Mathematics
Number and Operations Standard
Compute fluently and make reasonable estimates
Expectations (3 - 5)
develop and use strategies to estimate the results of whole-number computations and to judge the reasonableness of such results;
select appropriate methods and tools for computing with whole numbers from among mental computation, estimation, calculators, and paper and pencil according to the context and nature of the computation and use the selected method or tools.
Data Analysis and Probability Standard
Formulate questions that can be addressed with data and collect, organize, and display relevant data to answer them
Expectations (3 - 5)
collect data using observations, surveys, and experiments;
represent data using tables and graphs such as line plots, bar graphs, and line graphs;
Select and use appropriate statistical methods to analyze data
Expectations (3 - 5)
collect data using observations, surveys, and experiments;
represent data using tables and graphs such as line plots, bar graphs, and line graphs;
use measures of center, focusing on the median, and understand what each does and does not indicate about the data set;