Now I'm even queasy about this Texas textbook howler. I can't source it beyond the imgur jpg mentioned in reddit. Someone suggested Algebra 2 by Glencoe, but I can't find it there. Is this just manufactured Texas ridicule? --rwg On Tue, Apr 26, 2016 at 4:45 PM, Bill Gosper <billgosper@gmail.com> wrote:
Oops, I see they want you to change the 9 into 10 - 1 and then use the distributive law. gosper.org/Holt McDougal Mathematics Grade 7, Common Core Edition.pdf <http://gosper.org/Holt%20McDougal%20Mathematics%20Grade%207,%20Common%20Core%20Edition.pdf> --rwg My flame prompted Zack Chroman to exhume the classic: this textbook in texas <http://i.imgur.com/tDSX24E.jpg> . The typography matches an earlier series of texts given my young friend, which I thought were widely standardized. Has anyone seen this howler outside of Texas? Another foul emanation from the Texas School Book Depository? --rwg
On Tue, Apr 26, 2016 at 12:09 AM, Bill Gosper <billgosper@gmail.com> wrote:
The simplification 6(9) = 6×9 is an example of (choose one) a) associativity b) commutativity c) distributivity.
"Answer": c. Has anybody ever seen this usage of "the distributive law"? This is from the same Common Core idiots who outlaw "improper" fractions. They also insist that parens enclosing parens be changed to square brackets. --rwg