Mr. Mahesh taught the concept of 'factors affecting combustion.' Which one of the following is the BEST example of an 'authentic task' to assess students on their understanding of factors affecting combustion?
Mr. Mahesh taught the concept of 'factors affecting combustion.' Which one of the following is the BEST example of an 'authentic task' to assess students on their understanding of factors affecting combustion? Correct Answer Create a fire extinguisher using commonly available items.
Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat. The original substance is called the fuel, and the source of oxygen is called the oxidizer. The fuel can be a solid, liquid, or gas, although for airplane propulsion the fuel is usually a liquid. Key Points
- Combustion is a process where a thing or object catches fire by reacting with the oxygen around it.
- Hear the students have to understand the main concept that for an item not to catch fire the supply of oxygen should be stopped.
- Show the students videos of such kinds of materials in creating the extinguisher where the supply of oxygen can be stopped when fire catches anywhere.
- Here the understanding ability of students regarding the factors affecting combustion can be assessed by the items are materials they pick to create a fire extinguisher.
Hence Asking the students to create a fire extinguisher using commonly available items is the best example of an authentic task to assist students in their understanding of factors affecting combustion. Additional Information
- On the other hand, just asking the students some oral questions to describe combustion or list the inflammable substances is not authentic to assessing the applicability of knowledge the students have gained.
