While state requirements vary on the number of instructional days and/or hours in the school year, the majority of. states require 180 days of student instruction. Most also specify the minimum length of time that constitutes an. instructional day.
Media Mix. Definition: Media Mix. Media Mix refers to the combination of advertising channels that is used in the promotion of a particular good or service. The idea is to choose the right combination to communicate with the audience and make an impact as estimated in the media planning strategy.
There are many types of culture media, which is food that microbes can live on. Two major sub types of media are complex and synthetic medias, known as undefined and defined media. An undefined medium has some complex ingredients, such as yeast extract or casein hydrolysate, which consist of a mixture of many, many chemical species in unknown proportions.