Your child will progress gradually through our activities and master area, volume, circumference, and diameter. Children learn to measure angles with a protractor and calculate decimal and fraction problems with ease. -Read and write fractions on a number line-Read and write decimals on a number line-Understand and apply concepts of lines, angles, and circles-Draw two-dimensional figures-Measure and find the area and perimeter of rectangular shapes using appropriate units.-Measure volume using standard cubic units.-Measure surface area of cubes and rectangular prisms by adding up the area of the faces-Calculate elapsed time in hours and half hours-Calculate elapsed time in days and weeks 8 1/2 x 11 inches. paperback. 96 pages. full color.