Parents control their children. A parent needs to control where their child goes, what time they come home, which school or university they attend, and many other aspects that affect their child's life and future.  Many times we hear people saying that a child does not have proper parents when they see children with ugly manners.  
   Another case is a boss at work.  Your boss controls your work.  The boss tells you what to do, how to do it, and when to finish it.  In most cases, your boss controls what you do to earn money. 
   A teacher is also an example of control.  If a teacher has no control over the class there might be an upheaval in class with students either throwing things around, talking, cheating, or even doing all three.  A teacher not only controls student behavior in class, but, more importantly, a teacher controls what a student will learn.  
   What is the difference between control and power?  To control a situation or a person is just to place limits and restrictions.  The child, the worker, or the student can still prosper but within set limits and boundaries that are placed there by parents, teachers or bosses who are more experienced in life.  When a person is in power, then, as the definition in Webster's Universal College Dictionary states, he will exert, ". . .possession of control or command over others; authority; ascendancy: power over people's minds."  
   If your boss works thinking that he or she has power over the employee, then the employee won't be able to grow and no development will be made.  The boss holds "...power over people's minds," in other words tells the employee what to think.  On the other hand if a boss exerts control over the employee, but not power, then the employee will still have a chance to create new methods and come up with new ideas.  Both the employee and the company or institution will prosper.   
   "To exercise restraint or direction over; dominate, regulate, or command," is the Webster definition.  Restraining or directing, a parent or teacher guides the way.  Domination is a natural thing when practiced by people who have more experience, but not more power.  Power is control but also authority;  power tells and orders without seeing if the person receiving the orders has an opinion. 
   You might say the two words are too much alike and are equal in meaning, but they are not.  An editor, for example, can control by setting the guidelines to keep me from libeling or defaming anyone by expressing my opinion, but the editor should not have power over what I am thinking.