Four principles are drawn from approximately 100 years of research in the area of motor development. The principles are (1) children are not miniature adults, (2) boys and girls (children) are more alike than different, (3) good things are earned, and (4) no body (nobody) is perfect. Five sections of this article introduce some of the major…

Children's serial motor skill acquisition was studied within a neo-Piagetian framework. High and low M-processors (a designation of a child's ability to produce problem solutions) performed on a curvilinear repositioning task. A primacy-recency effect was evidenced for both groups on the age-related task, while a recency effect occurred for only…

Literature analysis compared training gains in elementary girls' and boys' throwing performance to evaluate whether catchup effects were present. There was a lack of significant interaction between gender and training, supporting the hypothesis that training produces significant improvements in performance for both sexes. There was no catchup…