Mrs. Nelson has 25 students and splits them into 5 groups of the same size. The problem asks to find the equation that can be used to find $s$, the number of students in each group. The given options are $25 \div 5 = s$ and $25 \times 5 = s$.

1. Problem Description

Mrs. Nelson has 25 students and splits them into 5 groups of the same size. The problem asks to find the equation that can be used to find $s$, the number of students in each group. The given options are $25 \div 5 = s$ and $25 \times 5 = s$.

2. Solution Steps

To find the number of students in each group, we need to divide the total number of students by the number of groups.

The total number of students is

2

5. The number of groups is

5. Therefore, the number of students in each group, $s$, is obtained by dividing 25 by

5. So, the correct equation is $25 \div 5 = s$.

3. Final Answer

$25 \div 5 = s$