A nurse is teaching a newly hired nurse about motor skill development of school-age clients who are 6 to 12 years old. Which of the following statements by the newly hired nurse demonstrates effective teaching?

"By age 6, most children can dress and completely groom themselves."

"Children are expected to count backwards from 20 to 1 by age 7."

"Children engage in motor activities that require balance such as jumping rope by age 6."

"By age 6, most children can use tools such as a screwdriver or hammer."