Entropymancer said:
Evolution describes genetic shifts in populations over long periods of time. With a population as large as humanity, genetic changes from one generation to the next are not likely to be significant (nor would it automatically be moving in the direction of advancing intelligence); it's the trend of these shifts over time in response to selective pressure that is behind evolution.
This is not entirely correct. Epigenetics has proven that significant genetic changes can happen in a single generation due to enviromental factors. For example, if your grandmother experiences drought or famine when your mother/father were inutero, their and your genetic makeup can be significantly altered.
Evolution can happen over long peroids of time, but it can also happen very quickly.