Problem solving

--the five steps to problem solving: read and re-read the problem, identify important information, choose a strategy, solve, check the answer
--the six strategies to choose from: guessing and checking, using a simpler related problem, discovering patterns, drawing pictures and diagrams, making lists and charts, working backwards

--review of Part 1
--the discovering patterns strategy is used to solve a problem discovering patterns in number sequences.
--the making lists and charts strategy is used to solve a problem with disparate and incomplete information
--the drawing pictures and diagrams strategy is used to solve a problem about the number of poles needed to build a fence