That's why I had to improvise, and about half of the students had to deal with this fixation in another way that was more laborious, and they could be seen as upset / disappointed. Thanks to that, I will be careful next time that I always have the material ready in time and in sufficient quantity. However, in about two weeks, the janitor brought so many logs that everyone could make at least three stands.
Thanks to that, I will be careful next time that I always have the material ready in time and in sufficient quantity.