Indicator 3h

Evidence confirms a clearly distinguished teacher's edition (files marked 'TE', e.g., G5-M2-TE [E5][E6]) with Module Overviews containing adult-level explanations of advanced concepts—e.g., precise algorithmic definitions of 'partial product (an algorithmic method that takes base ten decompositions of factors, makes products of all pairs, and adds all products together)' and 'partial quotient (an algorithmic method using successive approximation)' [E5][E6]. The 'Preparing to Teach' guidance explicitly directs teachers to build their own subject knowledge by reading the Module Overview narrative, referencing lessons to clarify concepts/vocabulary, and viewing model demonstrations [E1][E2][E12]. This structural design—a TE with conceptual narratives, tool/representation explanations, and teacher self-study supports—meets the indicator's requirement.