Episode 0310


 * David, Molly and Maria sing the "My Name" song.


 * Big Bird tries to sit on the lower-case letter "h" as if it were a chair.


 * Guy Smiley hosts "The Remembering Game", a game show in which the constants must match pictures based on memory. The winner gets whatever item was in the pictures they matched, and the other contestant wins the item from the remaining two pictures as a consolation prize. Bill Smith wins a cookie, and Cookie Monster wins a jet plane. Disappointed, Cookie Monster suggests that they switch prizes.


 * When Molly tries to deliver a letter to Oscar, the lid opens and his feet pop up. Oscar explains that he doesn't want to see nice, pleasant people.


 * Using rectangles, Maria sings the Classification Song and then explains how we classify by quantity.


 * By using his imagination, Ernie solves the problem of which of two shelves on the wall to place a large vase; one shelf is big enough for the vase, the other is far too small.


 * Molly explains pockets and pouches.


 * Marty teaches Grover about adding and subtracting with three tangerines.


 * David and some kids build a town out of toys and blocks.


 * Ernie and Cookie Monster demonstrate the difference between "happy" and "sad".