Board Thread:Episode Discussions/@comment-25319479-20171206103000/@comment-35622277-20171209093718

With the flower picking classes, and feminine classes in general, it might've been used for training Kunoichi in the art of infiltration and subterfuge. A "how-to-fake-being-a-lady class".

But obviously Kishi went into a completely different direction from any "ninja infiltration" so he swept that concept under the rug as it served no story purpose.

I agree. These kids seem to have been taught more than just the basics, including advanced theories on chakra, math and physics. Hence their ability to learn and perform nature transformations so easily, they were already taught the basics. No need for Kakashi or equivalent waste time on basics.