Draw a scaled picture graph and a scaled bar graph to represent a data set with several categories. Solve one- and two-step "how many more" and "how many less" problems using information presented in scaled bar graphs. For example, draw a bar graph in which each square in the bar graph might represent 5 pets.

Grade levels
03

Generate measurement data by measuring lengths using rulers marked with halves and fourths of an inch. Show the data by making a line plot, where the horizontal scale is marked off in appropriate units— whole numbers, halves, or quarters.

Grade levels
03

Recognize area as an attribute of plane figures and understand concepts of area measurement.

Grade levels
03

A square with side length 1 unit, called "a unit square," is said to have "one square unit" of area, and can be used to measure area.

Grade levels
03

A plane figure which can be covered without gaps or overlaps by n unit squares is said to have an area of n square units.

Grade levels
03

Measure areas by counting unit squares (square cm, square m, square in, square ft, and improvised units).

Grade levels
03

Relate area to the operations of multiplication and addition.

Grade levels
03

Find the area of a rectangle with whole-number side lengths by tiling it, and show that the area is the same as would be found by multiplying the side lengths.

Grade levels
03

Multiply side lengths to find areas of rectangles with whole-number side lengths in the context of solving real world and mathematical problems, and represent whole-number products as rectangular areas in mathematical reasoning.

Grade levels
03