### Represent $\dfrac { 1 } { 2 }$ on the number line.

Step by Step Explanation:
1. First let us recall the basic rules of representing rational numbers on the number line.
• If the rational number(fraction) is proper then, it lies between $0$ and $1$.
• If the rational number(fraction) is improper then, first convert it into a mixed fraction. The rational number lies between the whole number and next whole number.
Let us use the steps above to represent $\dfrac { 1 } { 2 }$ on the number line.
2. The rational number in the proper form. So, it lies between $0$ and $1$.

Now, let us draw a line. Take a point $O$ on it. Let it represent $0$.

From $O$ set off unit distances $OA$ and $OA'$ to the right and left of $O$ respectively.
3. As the given rational $\dfrac { 1 } { 2 }$ is positive. So, we move right from $O$ on the number line.

Let us divide $OA$ into $2$ equal parts. Let $OP$ be the segment showing $1$ parts out of $2$.

The point $P$ represents the rational number $\dfrac { 1 } { 2 }$.