If you count with the numbers above the note or rest, you can quickly see how simple it is.

Here you will find an example of exercise NR. 1 in 2/4 time.

2/4 means: 2 beats per measure. 

You will see the cursor move. You hear a drum beat on every note,  and a tap on every rest.

Detailed explanations can be found in the E-book that accompanies the training.

Try to clap simultaneously with the notes. You don’t do anything during the (various) rest signs.

The tap of the first 2 beats sounds different because this is the intro. So the exercise only starts on the 3rd beat (is a note in this example).

This sample video stops after measure 18