Is it correct to use "and" at the beginning of a sentence?
While there is no rule against using a conjunctionA conjunction is a word that joins other words, phrases (groups of words), or clauses (groups of words with a subjects and verb). Co-ordinate conjunctions join words, phrases, or clauses of equal rank. The co-ordinate conjunctions are the following: and, but, or, nor, for, and yet.
Source: Lesson 77 to begin a sentence, it is important to be wary of overuse which can make a paragraph sound choppy. It is also useful to consider whether the intent is a more formal or casual paper. Frequently beginning sentences with conjunctions like "and" or "but" can create a more informal feel.