Countdown timer

I suddenly remembered this product that my colleague shared about when we were discussing about how to teach some of our students the notion of "how much time left". We have students who do not have the notion of time. They can't tell time from the analogue clock (which I find to be more and more common in the digitised world), they also have no idea what is yesterday, tomorrow, or 15 more minutes. And so, in her previous work place, they used a product like the countdown timer shown here (image obtained from here)to help her students know how much more time is left for them.

I guess the benefit of having this countdown timer is that it gives a spatial view of the remaining time, because the red indicator moves as time passes. The beep that sounds when time is up also gives them an auditory indication. I think it might be quite helpful to teach children the passing of time as well as the concepts of "15 minutes more", or "5 minutes left". :)