The RS2 Level D Lessons continue to build on the meaning and properties of multiplication and division, along with the basic facts. Other topics include multiplying a 4-digit number by a 1-digit number, rounding, numbers to millions, area and measurement in both the US customary and metric systems, fractions, and graphing. The children continue work with geometry and angles using drawing tools. Problem solving with all four operations is emphasized. Daily card games are included in the lessons. Review lessons are included for children beginning with the RightStart program.