Cuisenaire rods are a real aid in exploring, explaining, and expanding on the meaning of fractions. Fractions are numerical relationships - like the relationship of the yellow rod to the blue rod (5/9). Equivalent fractions are easily explained also, using rod equivalents. Other topics include addition and subtraction of fractions, finding common denominators, and ratios. Riddles, puzzles and plenty of rod pictures add to the interest. 64 pgs.