Since learning is relatively easy for most of us, sometimes **we forget just how complex seemingly simple tasks really are,** for example memorizing multiplication tables or working a math problem. For example, when a student works on a math problem, he must fluidly move back and forth between analytical skills and several levels of memory (working, short-term, and long-term memory). With word problems, he must hold several numbers and questions in mind while he decides how to work a problem. Next he must delve into long-term memory to find the correct math rule to use for the problem. Then he must hold important facts in mind while he applies the rules and shifts information back and forth between working and short-term memory to work the problem and determine the answer.