Look at the fraction wall page 124. a) How many thirds are there in one whole? b) How many Sixths are there in one whole? c) How many Sixths are there in one third? d) How many Sixths are there in two thirds?

To find how many $\frac{1}{3}$ are in 1, we divide 1 by $\frac{1}{3}$.

$$1 \div \frac{1}{3} = 1 \times \frac{3}{1} = 3$$

There are $\boxed{\text{3 thirds}}$ in one whole.

To find how many $\frac{1}{6}$ are in 1, we divide 1 by $\frac{1}{6}$.

$$1 \div \frac{1}{6} = 1 \times \frac{6}{1} = 6$$

There are $\boxed{\text{6 sixths}}$ in one whole.

To find how many $\frac{1}{6}$ are in $\frac{1}{3}$, we divide $\frac{1}{3}$ by $\frac{1}{6}$.

$$\frac{1}{3} \div \frac{1}{6} = \frac{1}{3} \times \frac{6}{1} = \frac{6}{3} = 2$$

There are $\boxed{\text{2 sixths}}$ in one third.

To find how many $\frac{1}{6}$ are in $\frac{2}{3}$, we divide $\frac{2}{3}$ by $\frac{1}{6}$.

$$\frac{2}{3} \div \frac{1}{6} = \frac{2}{3} \times \frac{6}{1} = \frac{12}{3} = 4$$

There are $\boxed{\text{4 sixths}}$ in two thirds.