A mop is a cleaning tool typically constructed of absorbent materials at the end of a long pole. The absorbent materials are soaked in water or some combination of water and cleaning fluid and then dragged over dirty floors to clean up any dust, dirt, or debris.
First and foremost is your child's age and developmental stage. The older a child is, the longer he'll be able to play alone. For example, at 6 months, a child may be content by himself for 5 minutes; at 12 months, for 15 minutes; at 18 months, about 15 to 20 minutes; and at 2 years, for about half an hour.
Child development experts believe that motor activity during the second year is vital to the child's competent development and that few restrictions, except for safety, should be placed on their motoric adventures. By 13 to 18 months, toddlers can move up and down steps and carry toys.