  In this paper, we present a new heuristic derivation of the gravitational
deflection of light around the Sun at the undergraduate level. Instead of
solving the geodesic equation directly, we compute the correct deflection angle
by focusing on the acceleration term of null geodesics. Using this heuristic
deviation, we expect that undergraduate students who have not learned general
relativity will be able to experience this computation, which is one of the
most remarkable evidences of general relativity.
