Archive for the ‘Uncategorized’ Category
How much rice and how much water?
Posted by: Gary Ernest Davis on: November 28, 2010
My wife, Linda, and I bought some Jansal Vallley Farm jasmine rice from Sid Wainer & Sons. It’s fine rice, and like most fine foods from Sid Wainer & Sons, not cheap. The instructions on the rice packet say add cups of water to every cup of rice. Linda found that this was too much […]
The axis of symmetry of a quadratic function
Posted by: Gary Ernest Davis on: November 27, 2010
Jim Tanton (@jamestanton ) Tweeted: “x=-b/(2a) ugh!For y=3x^2-12x+7 factor first 2 terms y=3x(x-4)+7 See x=0 & x=4 give same output. Axis of symm must be x=2.Try this on y=ax^2+bx+c!” This, in my experience, is a simple yet typical example of Jim’s thinking: highly relational and generally avoiding instrumental procedures. In this post I simply want […]
