A man in a white t-shirt and blue baseball cap is overseeing some kids in a laboratory setting .
A man is watching kids during class .
A man in a white t-shirt and blue baseball cap is overseeing some kids in a laboratory setting.
A man is watching kids during class.
Overseeing kids is another way to say watching kids.  The kids are in a laboratory setting that requires a man to be present, this could imply its a class.
Overseeing kids is another way to say watching kids . The kids are in a laboratory setting that requires a man to be present , this could imply its a class .