tag:blogger.com,1999:blog-5964889903484807623.post6977325403868063131..comments2023-12-18T04:44:25.358-08:00Comments on Questions?: Sizing Up DiagonalsDavid Coxhttp://www.blogger.com/profile/06277427735527075341noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-5964889903484807623.post-74746546651998341372014-08-15T11:52:20.151-07:002014-08-15T11:52:20.151-07:00This task is part of a larger project. I have a un...This task is part of a larger project. I have a unit writer that requested a very specific task and deduction/proof will come in other tasks. This particular task didn't meet the specs for Illustrative Mathematics so, as a workaround, we posted here.David Coxhttps://www.blogger.com/profile/06277427735527075341noreply@blogger.comtag:blogger.com,1999:blog-5964889903484807623.post-2851793307837672082014-08-15T08:53:43.748-07:002014-08-15T08:53:43.748-07:00And even if they do manage to combine operations i...And even if they do manage to combine operations in just the right way, is it a problem that it just ... seems to work? Where does deduction and proof figure in here?Dan Meyerhttps://www.blogger.com/profile/11323257310042023350noreply@blogger.comtag:blogger.com,1999:blog-5964889903484807623.post-86144374686017329082014-08-13T06:38:50.946-07:002014-08-13T06:38:50.946-07:00I know the formula, but am having a hard time imag...I know the formula, but am having a hard time imagining students figuring out to square the legs and add them and then take the square root. This process would not be obvious to me without my background knowledge. How do we help students make this jump?concretekaxhttps://www.blogger.com/profile/03817234454056267050noreply@blogger.com