Have you taught your students binary code? Note: your answer - yes or no - is binary: a system where the units have only two possible values. However, most people associate binary code with the ones and zeros often used in computers. This resource includes secret codes that have messages that teach! Each 8 bit code represents an uppercase letter. The coded message can be cracked to reveal a fact about binary code (such as what is a "bit"?). There are 10 worksheets included, as well as answer ke