Final answer:
A run-on sentence incorrectly joins two or more complete sentences without appropriate punctuation or connecting words. It can be corrected by using coordinating conjunctions, periods, semicolons, or by turning one part into a subordinate clause.
Step-by-step explanation:
In the context of high school English, a run-on sentence is a common error that occurs when two or more complete sentences are joined without appropriate punctuation or connecting words. Several strategies can be used to correct run-on sentences: adding a coordinating conjunction (for example, for, and, nor, but, or, yet, so), using a period to split the run-on into separate sentences, using a semicolon, or using a semicolon along with a transitional word or phrase (e.g., however, consequently). Alternatively, one could make one of the sentences into a subordinate clause using a word like although, because, if, when, or since. These corrections help in enhancing the clarity and readability of writing.
An example of a run-on sentence is: College students have the opportunity to choose any major they tend to choose those that offer immediate opportunities to earn money when they graduate. This can be corrected by adding a conjunction or a period, for instance: College students have the opportunity to choose any major, and they tend to choose those that offer immediate opportunities to earn money when they graduate.
Understanding sentence structure and proper punctuation is critical for crafting coherent and effective academic writing. High school students are often provided with worksheets and exercises to recognize and correct run-on sentences as part of their curriculum.