My adult students have a level of English at basic or intermediate. The span is high, and their levels too.
However I can speak in English all the class-period.
If I were entrusted a more basic level and false beginners, I definitely would carry on speaking in English I think, but at a lower level, more slowly, more aiding the class with the whiteboard, with simpler worksheets… but the point is that I would speak in English, and would try to overwhelm the temptation of using Spanish. / Photo from: cycling4 competitorgroup com