tag:blogger.com,1999:blog-5729693164429226362.post837826496345814419..comments2010-02-24T09:30:42.511-08:00Comments on Calculators for Upper Primary Mathematics: Curry Puff ProblemDr Yeap Ban Harhttp://www.blogger.com/profile/14995827943531633736noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-5729693164429226362.post-90242001012393279082010-02-24T09:30:42.511-08:002010-02-24T09:30:42.511-08:00If you give a child a calculator, what is to preve...If you give a child a calculator, what is to prevent him or her from using it indiscriminately? With the calculator in hand, why bother with the doubling strategy for 17 x 4. Or to subtract 47.60 from 50. And even with 50/2.8 it is possible to simplify to 12.5/0.7, which is easy to do. The sooner you make calculators available, the sooner they will use them for even computations that can be solved with some number sense strategies.Kennichttp://www.blogger.com/profile/09352583726101609004noreply@blogger.com