I just finished listening to it and the researchers bring up some good points on:
- why children need variability in order to learn motor skills.
- Children need to fail at times in order to learn the correct movements or postures.
- how children benefit from variability as they explore their environments
Reference: Variability in Childhood Development. Physical Therapy doi: 10.2522/ptj.2010.90.12.1708 Physical Therapy November 2010 vol. 90 no. 12 1708-1709