I wish we could turn off the automatic measurement feature of the oscilloscope, for teaching purposes. This probably sounds weird, but I think it important that students get familiar with the waveforms and actually count divisions. This gives a feel for how many digits are really significant, that noise can be part of signals, that it helps to increase the sensitivity to fill as much of the screen as possible and maybe notice artifacts. e.g. Students might be asked to measure frequency response of a circuit with a uA 741 op amp. If the signal level chosen is too high and students don't actually watch the waveform they may not realize the numbers come from the slew-rate limit and not the frequency response. I actually recognized the problem of the seductiveness of digital displays in another lab where students used a lock-in amplifier with both a digital display and a d'Arsonval meter. The voltage went through large changes in value, and students were happily writing down the numbers when the instrument was on a totally inappropriate range. So for the first electrical-engineering lab I think forcing the students to rely on measuring the waveform themselves and not relying on the scope to do it for them gets them started well.
