Watch the video links below

http://www.khanacademy.org/math/integral-calculus/solid_revolution_topic/disc-method/v/disk-method-around-x-axis

http://www.khanacademy.org/math/integral-calculus/solid_revolution_topic/disc-method/v/generalizing-disc-method-around-x-axis

__http://www.khanacademy.org/math/calculus/solid_revolution_topic/solid_of_revolution/v/solid-of-revolution--part-1__

HW: Complete webassign 7.2 day 1 (or the first part of 7.2 book). Also complete 1B & 3A on today's in class worksheet. Complete the 2 question survey on the AP Calc Page.