Relating to, containing, or involving commentary or explanatory remarks.
From 'commentate' or 'commentary' plus the suffix '-ive' (indicating a quality or tendency). This adjective form standardized in academic English to describe texts or styles heavy in explanation.
A 'commentative' approach to teaching is actually backed by modern learning science—students learn better when they see thinking processes explained, not just answers delivered, which validates what ancient scholars intuited centuries ago!
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