Laura Molina, 9, shows the mask she created expressing the feeling of "sadness." Her mother is being treated for breast cancer at the Lyndon B. Johnson public hospital in Houston. Carrie Feibel/KUHF hide caption

itoggle caption Carrie Feibel/KUHF

Teacher Denise Severing leads a math lesson at a Head Start school in Woodbourne, New York. John Moore/Getty Images hide caption

itoggle caption John Moore/Getty Images