Because it has different ways of them or torward the way they live
Answer:
The introduction of an approach which modified behaviour using short lectures and self-paced learning was developed by Fred Simmons Keller. It was called Personalized-Proctorial System of Instruction (PSI).
Explanation:
He designed a system which delivered and monitored the progress of assimilation of the ideas that were being taught unit by unit.
Students were required to master one unit before exposure to the next.
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The correct answer is:"Many people died and were injured during the riots".
The Detroit Riots of 1967 were the bloodiest that took place in the so-called "Long, hot summer of 1967", in which 159 riots arose in total throughout the US.
The Detroit Riots were mainly confrontations between groups of black people and police. It all started with a police raid in an unlicensed bar, and ended up with 43 dead and 1,189 injured. The Michingan Army Guard had to be sent into Detroit to stop the conflict, and also some air divisions of the US army. They were the bloodiest and worst riots since the Civil War.
Answer:
Macroeconomists focus on just a few key statistics such as inflation,unemployment, and GDP because they find it hard to focus on all the data in eachmarket. Thus, it will be difficult for them to examine every good or servicebecause it is time consuming and cumbersome.It will be better for economists to examine all the possible data though it will take muchtime. The economists thus, use the summary from the three measures above to getsome information of the economy as a whole.
Explanation:
Its called research, hope it helped ヾ(•ω•`)o