Yesterday’s halakhah made me aware of this short snippet of laws about teachers that deal with interpersonal halakhah.
A teacher must sit and instruct the children all day and part of the night, so that he teaches them to study [Torah] at day and at night. They may not desist from the children at all, except for erev Shabbos and erev Yom Kippur toward the end of the day. We do not interrupt the children even for the building of the Temple.
A teacher of children who puts the children to rest and leaves, or does some other work with them, or slacks off in his learning, he is in the category of “cursed is one who is lax in doing Hashem’s work” (Yirmiyahu 48:10). Therefore, one does not setp up a teacher anyone but a person of fear/awe [of the Almighty], who is quick to read and be careful.
A teacher should not stay up too late at night, so that he won’t be lazy during the day. Similarly, he shouldn’t fast, or stop himself from food or drink, nor eat too much, for all these things will cause him to be unable to teach well. And anyone who veers from this, his hand is on the lower [i.e. his claim in a court would be weaker], and we fire him.
He should not hit them as an enemy would smite, the rebuke of the callous, neither with whips nor with a stick, only with a thin strap.
Note that by citing 165:12 as being similar to the laws of 185, Rabbi Ganzfried is giving a second reason for it. Not only is it bad education for the children to learn that their studies are interruptable and hence unimportant, nor is such interruption good for the universe (their studies take priority even over building the Beis haMiqdash!), but here the Qitzur adds that it would be prohibited for the same reasons as for any other employee. The same could be said of the negligent teacher in se’if 13.
Se’if 14 touches on the question of corporeal punishment. Clearly R’ Ganzfried’s approach would be counterproductive with today’s children. However, as we saw in 184:2, the Qitzur only permits hitting children where that is the most effective way to correct behavior.