Apollo 9 in early 1969. However, LM problems again prevented it from being ready for the D mission by December, so NASA officials created another mission for Apollo 8 using the Saturn V to launch only the CSM on the first crewed flight to orbit the Moon, and the E mission was cancelled as unnecessary. Slayton asked McDivitt and Borman which mission they preferred to fly; McDivitt wanted to fly the LM, while Borman volunteered for the pioneering lunar flight. Therefore, Slayton swapped the crews, and McDivitt's crew flew Apollo 9. The crew swap also affected who would be the first crew
Toy and Silly Putty and their home-made counterparts. Mary Ucci, Educational Director of the Child Study Center of Wellesley College, has demonstrated how such toys positively impact the physical development, cognitive development, emotional development, and social development of children. Toys for infants often make use of distinctive sounds, bright colors, and unique textures. Through play with toys infants begin to recognize shapes and colors. Repetition reinforces memory. Play-Doh, Silly Putty and other hands-on materials allow the child to make toys of their own. Educational toys for school age children of often contain a puzzle, problem-solving technique, or mathematical proposition. Often toys