Mowing should include

following safety procedures according to NSTMOP and the Virginia FFA Association Tractor Operator Rules
mowing regularly with a sharp blade at an even height
not mowing when lawn is wet
not removing more than 30 to 40 percent of the plant tissue
alternating the direction of cut from previous mowing
scarifying and raking to remove dead grass and prevent tufting.

Process/Skill Questions:

What happens when one mows the grass, passing in the same direction each time?
What are the general safety features on a lawn mower?
How does one adjust the blades on the lawn mower?
What are common injuries associated with mowing the lawn, and how can one prevent them or minimize the risk?