impactful - adj. having a major impact or effect.
lens - n. a clear curved piece of glass or plastic that is used in eyeglasses, cameras, telescopes, etc., to make things look clearer, smaller, or bigger
positive - adj. thinking about the good qualities of someone or something
optimistic - adj. having or showing hope for the future
elementary - n. of or relating to elementary school
comfortable - adj. not causing any physically unpleasant feelings
advanced - adj. beyond the basic level