Combining changes in geometry can be done easily through a few steps:

1. Sequence of Changes:

   • You can make one change after another.
   • The order of these changes is important. For example, if you move a shape first and then turn it, that's different from turning it and then moving it.

2. Types of Changes:

   • Translation: This means moving a shape without turning or flipping it.
   • Rotation: This means turning a shape around a point.
   • Reflection: This means flipping a shape over a line.

3. Using Points:

   • You can also describe these changes using a number system called coordinates.
   • For example, if you move a point from $(x, y)$ by $(a, b)$, the new point will be $(x+a, y+b)$.

By understanding these steps, you can carefully change and imagine shapes in geometry.