
This post allows you to practice splitting a window horizontally and vertically, moving between the windows and closing the windows.
TL;DR
Steps
1. Run Vim
You'll see:

2. Split the screen horizontally by typing:
You'll see the following. The cursor will be where the yellow arrow points.

Note: the cursor is in the upper window
3. Split the screen vertically by typing:
You'll see the following. The cursor will be where the yellow arrow points.

Note: the cursor is in the upper left window
4. Move right by typing:
You'll see the following. The cursor will be where the yellow arrow points.

5. Move down by typing:
You'll see the following. The cursor will be where the yellow arrow points.

6. Move up by typing:
You'll see the following. The cursor will be where the yellow arrow points.

7. Close the window by typing:
You'll see the following. The cursor will be where the yellow arrow points.

8. Close the other window by typing:
You'll see the following. The cursor will be where the yellow arrow points.

9. Quit Vim by typing:
Alternative Split Commands*
Horizontal Split Vertical Split
Reference