A math teacher, José Rios, used to take a day or two on probabilities, drawing bell-shaped curves on the blackboard to illustrate the pattern known as normal distribution. This year, he stretched the lesson by a day and had students work in groups to try to draw the same type of graphic using the heights of the 15 boys in the class.I don't recall the Common Core standards "expecting" teachers to spend three days teaching what they used to teach in one or two.
“Eventually, they figured out they couldn’t because the sample was too small,” Mr. Rios said. “They learned that the size of the sample matters, and I didn’t have to tell them.”
In three years, instruction in most of the country could look a lot like what is going on at Hillcrest, one of 100 schools in New York City experimenting with new curriculum standards known as the common core.
Forty-two states, the District of Columbia and the Virgin Islands have signed on to the new standards, an ambitious set of goals that go beyond reading lists and math formulas to try to raise the bar not only on what students in every grade are expected to learn, but also on how teachers are expected to teach.
A Trial Run for School Standards That Encourage Deeper Thought
By FERNANDA SANTOS
New York Times April 24, 2011
Unless I'm missing something, which I could be.
Richard Elmore on time