1. **State the problem:** Explain how $n^2$ appears in the expression $\frac{n \times n + n}{n}$. 2. **Recall multiplication rule:** When you multiply a number by itself, you square it. So, $n \times n = n^2$. 3. **Rewrite the numerator:** The numerator $n \times n + n$ becomes $n^2 + n$ because $n \times n$ is $n^2$ and the $+ n$ stays as is. 4. **Summary:** The $n^2$ comes from multiplying $n$ by $n$, which is the definition of squaring a number. **Final note:** $n^2$ means $n$ multiplied by itself once.