This is a complete, 43 slide SMART Board presentation on functions. Teachers can walk though slide by slide, asking questions along the way to discover many different ways we can write and represent functions: ordered pairs, mapping, equations, graphing, etc.Teachers can print out activities on functions / inverses.1) Is it a function? Students look at domain and range to determine if sets of numbers are functions or not. Then they plot points to see if sets of ordered pairs pass the 'vertical l