1.in order to collect data on how a child's muscles are developing , you ask them to run walk jump and stretch, what is the best way to assess muscle development?

a-collecting samples
b-observations
c-organizing information
d-interviews

2.with a new learning experience, when is the best time to assess a student ?

a-it is important to pre-assess children before you begin the learning experience
b-it is important to pre-assess the children before the learning experience and do another assessment after the experience
c-it is important to pre-assess children before a learning experience as well as during and after the experience
d-it is important to assess after the learning experience

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The first question is observation, you can't really collect samples on developing muscles or do any of the other things listed 
for the second question the answer can vary from B to C...it is important to asses before and after to see how much was actually learned...depending on what the learning experience is, you may SOMETIMES want to asses in between to insure the child or adult is actually retaining information. 

Muscles in the body us with a lot of things for example, if i wanted to lift a heavy box and had no muscle i would just collapse where i was because of the fact muscles hold us together. overall they are 650 muscle in the human body, all of them have different purposes and ways to keep us together. there are three types of muscle in the body skeletal, smooth, and cardiac muscle. skeletal muscle are attached to the bone and with movement. smooth muscle, this is found in the wall of our organs, such as our stomach, this muscle with movement   as well, without this muscle, we would only be allowed to eat small amounts. the cardiac muscle is the heart muscle and probably the most important one. these are only found in the walls of the heart and the heart pump blood to the other parts of your body. we have two different types of muscle fibers, slow twitch and fast twitch. slow twitch muscles enable long-endurance feats such as distance running. fast twitch fatigue faster but are used in powerful bursts of movements like sprinting. there are three different types of muscle contractions concentric, eccentric, isometric. concentric contraction causes muscles to shorten, thereby generating force.   eccentric contractions cause muscles to elongate in response to a greater opposing force. isometric contractions generate force without changing the length of the muscle.: //athleticquickness.com/muscle-contraction-types-part-1/

Making sure the equipment is cleaned daily and insuring proper hygiene is kept up with the working staff.