Answer:
The best answer to the question: How will knowing the typical development of a child help you, would be: it will first, allow you to observe if a child is following the expected steps of development, and two, it will allow you to foresee and correct unnatural steps in child development in time, should they arise.
Explanation:
Knowing the different theories, and research, regarding child development, both physically and mentally, will allow observers (parents, teachers, and other adults) to first, know if a specific child is following those expected steps of development, or not, and if not, understand what is happening, and second, it will allow for corrective measures to be taken, or revisions to be made, in case there are problems arising with the correct development of a child. Without this knowledge, adults would simply watch children develop and never know if the child is going through the steps he/she should be following, or if there are any problems that need to be resolved.
