The person who walks around a school observing students is typically called a hall monitor or a school monitor. Their role is to ensure student safety, maintain order, and enforce school rules. In some cases, this responsibility may also fall to security personnel or teachers assigned to supervise specific areas.
A person who observes an event is called a spectator.
A person who observes in an examination room is typically referred to as an exam proctor or invigilator. Their role is to ensure that the examination process is carried out fairly and efficiently by monitoring the behavior of the test takers and enforcing the rules and guidelines of the exam.
Most commonly this person is called a "proctor."
A bystander is a person who observes an event which is happening, while not participating in it.
A bystander is a person who observes an event which is happening, while not participating in it.
It means that a person observes and measures the result.
Learning how to behave by practicing the behavior of others is called observational learning. This type of learning occurs when an individual observes and imitates the actions of another person.
Personally, I'd call the person wise. Really depends on the Reason Why the person is observing others. A person gaining wisdom would most likely observe wisely, meaning the person being observed wouldn't even know, but not to the Extreme. But a person just excessively watching someone, like staring, would be uncomfortable...Basically your question is unanswerable, unless you're more Specific.
One possibility is "Lab Assistant"
A teacher (also called a schoolteacher) is a person who provides education for students.
There are many organizations who's job it is to certify that food is prepared in accordance to the rules of kashrut. This involves a person called a 'mashgiach' who is a religiously observant person (not necessarily a rabbi), who observes the preparation process.
A person who takes care of a dorm and its students is typically called a resident assistant (RA) or resident advisor. They are responsible for assisting students, promoting a positive living environment, and addressing any issues that arise within the dormitory. RAs often serve as a resource for students, providing support and guidance on various matters.