In the first movie, they tried to achieve it practically, by giving all of the clothing and props a green tinge. Certainly not as effective as doing it in post-processing, though.
Problem-Solving Strategies by Arthur Engel. It's more than a textbook and not easily absorbed. The book + the internet is a powerful combination for not just learning cool math skills but building mental models/ problem framing lenses that will benefit them later in life
