The correct answer to this open question is the following.
It is true that History and the desire by historians to influence the nature of social studies has been a major source of controversy in social studies education.
The example I am going to use to explain the rationale for this conclusion is the interpretation of historical events and the way this has affected society.
Historians have to base their arguments on facts. That is clear, the problem is that in many cases, the facts are just a portion of the information provided by historians and they include their interpretation of historical events.
And that is when some historians tend to bias the information. The time they try to interpret the events, they are subjective. So when social studies education tries to explain how different moments in history affect the present day, teachers and scholars have to be aware of this possible bias and be very careful in what they teach as history, facts, or interpretation, opinions, and the way these impact the behavior of modern society and its institutions.