Childminding is the work of looking after young children for pay, usually while the parents are at work. It is the job; a childminder is the person who does it. In British English you can say she does childminding, or childminding from home. Americans would more often say babysitting or daycare. Though actually, people sometimes mix the two words and talk as if childminding were a person. Keep the -ing for the activity, and childminder for the human being.

托育、保母工作。強調的是這份事，不是那個人。