Any function object that is a class attribute defines a method for instances of that class. It is not necessary that the function definition is textually enclosed in the class definition: assigning a function object to a local variable in the class is also ok.
Most children are born with very little arch in the feet. As they grow and walk, the soft tissues along the bottom of the feet tighten, which gradually shapes the arches of the feet. Children with flexible flatfoot often do not begin to develop an arch until the age of 5 years or older. Some children never develop an arch. If flexible flatfoot continues into adolescence, a child may experience aching pain along the bottom of the foot. A doctor should be consulted if a child's flatfeet cause pain.
Itâs helpful to know what physical skills your child should be developing by age 3 or 4. Abilities in this area include both gross (large) motor skills and fine (small) motor skills. Review the following checklists about physical development expected in a child this age, and note how your child is doing in each area. Now that you understand some of the key physical/motor skills your child should have, you can reinforce her development and foster further progress where necessary. Itâs easy (and fun!) to practice physical skills with your child throughout the day.