Sure! Understanding how to find the volume of 3D shapes can be simple if you take it step by step. Here’s an easy guide for some common shapes:

1. Cube:

   To find the volume, you multiply the length of one side by itself three times.

   If the side is called $s$, the formula is:
   $V = s^3$

2. Rectangular Prism:

   For a box shape, you just multiply the length ($l$), width ($w$), and height ($h$):

   $V = l \times w \times h$

3. Sphere:

   This one is a bit trickier. You take $\frac{4}{3}$ of $\pi$ and multiply it by the radius three times (also called "cubed").

   If the radius is $r$, it looks like this:
   $V = \frac{4}{3} \pi r^3$

4. Cylinder:

   To find this volume, you use the area of the base (which is a circle) and multiply it by the height ($h$).

   The formula is:
   $V = \pi r^2 h$

Once you memorize these basic formulas, calculating the volumes for different shapes becomes much easier!