A quick reference to using Pythagorean Theorem. Because we use calculators I show the students to identify which side is "C". If they give you C then subtract, if they don't then you add as in the example. Also we discuss whether they want the side or the area . "To square or not to square". It helps to keep things simple.
My room is filled with quick reference posters that help my kids succeed. Feel free to leave it like this or separate it into 4 posters. Make any changes you'd like.