They represent number relationships and conduct simple probability experiments. They describe and compare simple fractions and decimals. They understand the properties of, and the relationships between, plane geometric figures. They collect, represent, and analyze data to answer questions. They know and use common measuring units to determine length and area and know and use formulas to determine the volume of simple geometric figures.
Students know the concept of angle measurement and use a protractor and compass to solve problems.
They use grids, tables, graphs, and charts to record and analyze data. They apply their knowledge to statistics and probability. Students understand the concepts of mean, median, and mode of data sets and how to calculate the range. They analyze data and sampling processes for possible bias and misleading conclusions they use addition and multiplication of fractions routinely to calculate the probabilities for compound events. Students know about p and the formulas for the circumference and area of a circle.