Parashas Eikev · Passuk 11:19
and teach them to your children—reciting them when you stay at home and when you are away, when you lie down and when you get up;
Torah Temimah points to Berachos 15b.
TT lemma: ולמדתם מהו ולמדתם – שתהא למודך תם, שיתן ריוח בין הדבקים, כגון בכל לבבך (unit 1 of 10).
English: “And you shall teach them” — your learning must be complete: leave a space between words that might run together, such as “bekhol levavekha,” “al levavekha,” “bekhol levavkhem,” “esev besadkha,” “va’avadtem meherah,” “al levavkhem,” “hakanaf petil,” and “etkhem me’eretz.”
Derash on the verse (Bavli sugya) — not a formal named middah of the 13
The Gemara uses this passuk in a sugya (proof, illustration, or dispute). Named as one of R' Yishmael’s 13 or R' Eliezer’s 32 only when that move is explicit.
Teaching includes clear articulation: the learner must separate the joined letters so the words of Shema stay distinct.