Black and White 101
Black and white could not get any easier. Open an image. Choose Image>Adjustments>Black and White. Instead of using all of the sliders that are in the resulting dialog, click on the different areas of the image that you want to make darker or lighter and drag³left to make them lighter, right to make them darker.
Since entire books have been written about Black & White in Photoshop, the above description, even at a 101 level, has to be the worst tutorial ever.