Writing numbers and counting to 10; combining sets to 5; writing, counting and comparing numbers to 20; writing numbers to 40, then 70, then 100; comparing quantities such as cups, pints, quarts, gallons and penny, nickel, dime, quarter; writing number words; associating the number symbol with the number word; counting and combining pennies, nickels, and dimes; removing from a set; and telling time.

(Recommended for Grade 1,  but Book 1 may be used prior for Kindergarten)

Requires no additional textbooks from the Ray's series.