Chapter 2.2, Problem 1P

Michael says that the dark marbles in Figure 2.25 can’t represent $\frac{1}{3}$ because “there are 5 marbles and 5 is more than 1, but $\frac{1}{3}$ is supposed to be less than 1.” In a short paragraph, discuss the situation.

  

  Figure 2.25 Dark and light marbles.