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  1. General Discussion In the Detroit public school district, 96 percent of eighth graders are not proficient in mathematics and 93 percent are not proficient in reading. That is according to the...
  2. General Discussion
    Has anyone been taught the technique for checking multiplication problems by "casting out nines?" It's in our children's math books (Rod and Staff - we home educate) , but is not something I learned, nor can I find anyone else who has. I was just wondering if anyone here actually used this...
  3. Urban Survival
    For those of you that might be interested in building houses, bridges and other stuff without the use of a calculator, the Smoley's Three Combined Tables might be a good asset...
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