This scale is #1 in the keyboard book. Click here if you haven't done this one yet.
Going up, cross your thumb up to 'F'.
Going down, cross your 3rd finger down to 'E'.
5 exp.
Going up, cross your 3rd finger up to 'A'.
Going down, cross your thumb down to 'G'.
5 exp.
Note that the crossing takes place at different points in the scale for each hand.
10 exp.