Partner A holds the green yarn straight by holding one end in each hand.
Partner B ties the blue yarn near one end of the green yarn by folding the blue yarn in half, then folding its center loop over the green yarn. He then pulls the blue yarn through the loop, resulting in two lengths of blue yarn hanging from the green yarn (one for Partner A and one for Partner B).
Partner B repeats Step 2 with the red & yellow yarn.
Partners A and B take turns making knots in the colorful yarn using this code:
Blue: days until next birthday
Red: score on last test (in any class)
Yellow: pages in one of the books in your bookbag
Example: if there are 127 days until Partner A’s birthday, he would make the following knots in his length of blue yarn—one knot (100) near the green yarn, two knots (20) in the center, and seven knots (7) near the bottom.