How do i start an argumentative essay about the value of a college education?

Literally by proving the worth of a college education and if it is necessary to be successful in the modern day, or if you think modern day college is a scam.

Explanation:

An introduction would look something like this: "Although some may disagree, the value of a college degree is (hugely important/greatly overvalued) because..."

type of error:

the error in the sentence is a "dangling modifier". a dangling modifier is a phrase, word or clause that "dangles" because there is not target to modify. in this case, "after mopping the floor" is the dangling modifier since it has no word to modify. the noun "house" cannot mop the floor; therefore there is a mistake in the writing of the sentence.