I believe that mathematics should be taught, not collaboratively explored; algebra and geometry are better than a vague course of Integrated Math; spiraling doesn't work nearly as well as learning it properly the first time; "I don't DO math" should be an incentive rather than an excuse. "I don't DO English" should be treated the same way.
Pages
▼
Sunday, June 13, 2010
The Weight of a Brick
If a brick balances with three-quarters of a brick and three-quarters of a pound, how much does a brick weigh?
~Sam Loyd, Cyclopedia of Puzzles, 1914
Yep! I've decided to try that new way of indicating a short answer - hold your mouse over the answer and the little popup should appear. It works in Google Reader and in several browsers that I've tested. The benefit is that people can still work on the problem without seeing the answer till they're ready.
3 lbs.?
ReplyDeleteYep! I've decided to try that new way of indicating a short answer - hold your mouse over the answer and the little popup should appear. It works in Google Reader and in several browsers that I've tested. The benefit is that people can still work on the problem without seeing the answer till they're ready.
ReplyDelete1/4 brick weighs 3/4 libs, so the whole brick will weight 3/4 lbs * 4 = 3 lbs
ReplyDelete