Plexers are a type of rebus, or what we consider insight-phrases. They are usually owrds. (The general form of a rebus contains pictures as well as words.) Studnets are to determine what word or phrase the Plexer brings to mind. The direction, size and/or position of the letters are often vital to understanding the puzzle. Plexers can help students develop some expertise in problem solving. They allow students to try different solutions without the pressure of being graded on their answer. Students develop divergent thinking skills through taking the necessary different views of symbols and coding. The puzzles often have more than one possible solution. (Solutions other than those given in the answer sectiion may be even better!) Blackline Masters with answers.