They keep discount rates, I believe.
The answer for this question is: <span>Previous teaching experience
Experienced teachers tend to have a larger spectrum of knowledge about the subject that they expert in.
Not only that, they also have developed a certain people skill that make them able to transform the knowledge to students more efficiently compared to inexperienced teachers</span>
I believe the answer is: <span>concrete operational
During the concrete operational stage, the children already started to develop the congitive ability to perform logical thinking.
This would granted them the ability for basic reasoning in determining the causal-effect relationship in a certain event</span>
For the mummys they took the brain out threw the nose because they thought the only important part in the mummy so they only the heart because they thought the heart did everything so they put the heart in a cinopic jar and put it back in the mummy so that the mummy can have a afterlife. I hope this is what u meant.