1. Passive Construction: "Classroom interactions are instrumental" uses a passive construction to emphasize the role of interactions without specifying who makes them instrumental, which adds a formal tone and focuses on the action rather than the actor.
2. Gerund Phrases: "Engaging with peers" and "enhancing their self-confidence" use gerunds, which function as nouns, allowing complex ideas to be conveyed succinctly and effectively.
3. Relative Clauses: "as they learn to undertake tasks without parental assistance" is a relative clause that provides additional information about how children develop autonomy, enhancing the detail and depth of the explanation.