Convey a concrete understanding of equivalencies using our color-coded Rainbow Fraction® Teaching System. Supports addition, subtraction, multiplication and division of fractions, decimals and percents. Teaches equivalencies using relationally sized cards that are color-coded so equivalent values match (e.g. 50%, 0.5 and 1/2 are all pink), with enough of each size card to equal 1 whole. Includes 153 cards with numerals on one side and number words on reverse, 2 double-sided title cards, plus Activity Guide. Flame-retardant nylon chart with hanging grommets and reverse-side card storage pocket measures 20"L x 27"H. Grades 1+