http:rtisuccessorg. Progress monitoring, one of the essential. components of Response to Intervention (RTI), is. characterized by repeated measurement of academic. performance that is conducted at least monthly. The. process may be used to assess studentsâ academic. performance over time, to quantify student rates of.
Calculating the Air Quality Index. The AQI is calculated by converting measured pollutant concentrations to a uniform index which is based upon peer-reviewed scientific evidence of the health effects associated with a pollutant.
The AQI converts the measured pollutant concentration in a community's air to a number on a scale of 0 to 500. The most important number on this scale is 100, since that number corresponds to the standard established under the Clean Air Act.