Or dojo approaches more of a broad sweep of the basics (for a spell) followed by more advanced applications of those same basic movements.
For instance, first tai-sabaki. Then Ikyo in the basic grabbing forms (katatetori, katatori etc)
Then with motion. Then as henka-waza......finally oyo-waza (all from the ikyo root-technique).
When you then return to doing the basic grabbing attack Ikyo, you will find your mai-ai, your posture, your connection are all considerably improved by applying them in a more advanced form.
Even rank newbies see this jump in comprehension.
Advanced (like henka-waza) won't work without the basic movements being correct.
Sometimes we have approached this *escalation* of technique during a single class period, sometimes over days, but usually it does seem to be a cyclical repetition that re-inforces the core techniques.
And of course, we spend MANY hours introducing the new-comers to Ikyo as well....
Never too much of the basics, since that supports all the rest of your structures, if you will.