Scholastic
Scholastic Lesson Plan: Simple Ways to Assess Math Sense
This site has two lesson plans are presented by Marilyn Burns and associates that use children's literature to help assess math sense. One lesson plan is for use with primary students while the other is for use with intermediate students.
Smithsonian Institution
Smithsonian American Art Museum: Georgia O'keeffe
As part of the Smithsonian Art Museum's database of artists, this site provides biographical information on Georgia O'Keeffe in addition to an extensive listing of her works as displayed at the museum.