Students begin with a review of multiplication and division, then learn place value and large numbers, mental multiplication and division, fractions and mixed numbers, area and perimeter, angles, geometry, decimals, time, weight, and capacity, line plots and averages, and more. The Instructor Guide, Workbook A, and Workbook B are required for successful completion of the program. Part A covers Units 1-8 (1st semester), and Part B covers Units 9-16 (2nd semester.)