Simultaneous equations are two linear equations that can be solved using bar models. By remembering that the same letter will always have the same value we can work out the missing values. To solve ...

An algebraic equation contains one or more letters in it. Each letter in the equation is called a variable. A variable can change in value. We guess at different values for each letter until our ...

You'll be more productive if you can see what you need to do, and when you need to do it. This assessment and productivity tool is named for former president Dwight Eisenhower, who once quoted Dr. J.