We expect to have an increasing of number of observations over the next few years and to get valuable data both from bigger and smaller telescopes. (sciencedaily.com)
They should be created after a substantial number of observations that allow a school leader to see the entire picture of what a teacher is doing in their classroom. (thoughtco.com)
Naturally, sample size is crucial because skill only surfaces with a large number of observations. (greenbackd.com)