The idiom "blue collar" refers to manual labor or industrial work. The term comes from the usually blue overalls manual laborers would wear in factories etc
Below you can read feedback from an ITTT graduate regarding one section of their online TEFL certification course. Each of our online courses is broken down into concise units that focus on specific areas of English language teaching. This convenient, highly structured design means that you can quickly get to grips with each section before moving onto the next.
I really enjoyed this unit as I was able to fully understand how you would discuss the learning topic to the students as well as giving them worksheets related. I learn't how to structure my activities based around the needs of the students by asking them about the topic eg: holidays and then excelling on what they know to things they don't know. I loved the example lesson plan, self evaulation form and the task materials as now I can follow this and understand the structure of the class and potentially build my own task sheets.