MARILYN K . GI FFORD has taught middle school science in an alternative program. She is an urban educator with a master’s degree, science teacher certification, and experience working with at-risk ...vizualizați mai multeMARILYN K . GI FFORD has taught middle school science in an alternative program. She is an urban educator with a master’s degree, science teacher certification, and experience working with at-risk families. Retired, Gifford and her husband live in Texas. She has five children, fifteen grandchildren, and two great-grandchildren.vizualizați mai puține