Uri Treisman of the Dana Center at the University of Texas spoke about mathematics and equity at the annual NCTM meeting in Denver.

But he spoke about much more. He spoke about student performance on international tests; about the effect of poverty on achievement; about opportunity to learn; about the Common Core; about charter schools; about VAM.

Many who saw his speech said it was the best they had ever heard.

Please watch it. You will be glad you did.