Friday, March 9, 2007

Geologic Time


As part of Alex's history class, he has been studying geologic time. First, he did a project which helped him to understand time sequencing as well as the difference between numerical time and relative time. Alex examined several events in his life and placed them in order from earliest to latest. This gave him his sequential timeline. Then, he assigned a numerical date to each event giving him a numerical timeline. Finally, he divided the events of his life into time intervals, "Preschoolian" and "Schoolian" giving him his relative timeline. He really enjoyed seeing his life events placed into such grand categories and I enjoyed the trip down memory lane.


Alex also studied the concept of a billion. He calculated that if he saved $100 per day, it would take him 27,397 years and 95 days to save a billion dollars. This was somewhat discouraging for him. He also caculated that if he wanted to count to a billion, it would take him 95.12 years given that he was able to say a number every 3 seconds. He decided that he had no desire to do so.

No comments: