To divide 24 into 3 equal groups, we can set up an expression that divides the total number (24) by the number of groups (3).

The expression is:

$24 \div 3$

or, equivalently,

$\frac{24}{3}$

Calculating this gives:

$\frac{24}{3} = 8$

So, each of the 3 groups will have 8 units.

Would you like further explanation or have any questions?

Here are some additional questions to consider:

1. How would you divide 24 into 4 groups?
2. What if you wanted to divide 24 into 6 equal parts?
3. If each group had 6 units, how many groups would you need for 24 units?
4. What would the expression look like if you divided 24 into 2 groups?
5. How does dividing into equal groups differ from multiplication?

Tip: When dividing a number into equal groups, remember that the division operation tells us how many units are in each group.