Judge the reasonableness of the results of rational number estimates and/or computations. SPI 0606.1.2

Links verified on 1/03/2010

1. Long Division Teaching Aid: Double Division - Teaching Double Division can help in teaching long division by reinforcing the principles of division and giving students success with a less frustrating alternative.
2. Review Rules for Working with Rational Numbers - two interactive sections are provided, look for the blue blocks
3. Rounding - Discover how rounding is a process which produces another number that is close to the original number. Learn how to round numbers up or down to the nearest rounding number. Work through the lesson, experiment with the interactive figure and then answer ten questions. [caution: do not submit until you have selected answers to all of the questions] and