A kindergarten teacher is responsible for planning the curriculum for each day and for the collective school year. Teachers must allow the children to observe an activity while also giving them the opportunity to ask questions and look for the answers. Instructions need to be very precise yet easy to understand.
The CS220 is a thermocouple that measures the temperature of a surface by direct contact. SI-111 Infrared Radiometer with Standard Field of View. The SI-111, manufactured by Apogee, is a precision infrared radiometer that determines the surface temperature of an object without physical contact.
A sensor or probe attached to the surface will register its own temperature, and the problem is to get it into proper contact with the object without changing the temperature to be measured. In principle this is impossible! However, the requirement exists and surface probes are made for the purpose.