Paragraph 1:

School time can be conceived as an inverted pyramid: allocated time, on the upper and the widest tier, consists of the total time in the school day or school year; in the middle tier is engaged time, or the time actually spent on learning activities (sometimes called "time-on-task"); at the bottom, and ____________________ the narrowest part of the inverted pyramid, is academic learning time, or the period during which an instructional activity correlates with a student's readiness to learn and results in actual learning (Aronson et al., 1999).

Question

Paragraph 1:

School time can be conceived as an inverted pyramid: allocated time, on the upper and the widest tier, consists of the total time in the school day or school year; in the middle tier is engaged time, or the time actually spent on learning activities (sometimes called "time-on-task"); at the bottom, and ____________________ the narrowest part of the inverted pyramid, is academic learning time, or the period during which an instructional activity correlates with a student's readiness to learn and results in actual learning (Aronson et al., 1999).

BlackTom AI · Accepted Answer

First, restating the prompt helps orient the reasoning: the paragraph describes an inverted pyramid of time in education, with allocated time at the top, engaged time in the middle, and a bottom portion that is the narrowest and represents academic learning time. The blank is to be filled in to complete the parallel structure of the sentence.
Option 1: 'Besides' would signal addition but does not fit the intended parallel contrast between top, middle, and bottom elements. It would read awkwardly as 'at the bottom, besides the narrowest part,' which disrupts the intended grammatical and logical flow of the comparison across tiers.
Option 2: 'Therefore' is a conjunction used to indicate conclusion or consequence. Inserting it here would imply a causal link (e.g., 'at the bottom, therefore the narrowest part'), which does not align with the descriptive progression of the pyramid levels. This breaks the parallel structure of the list.
Option 3: 'Moreover' is an additive conjunction used to add information, but in this context it would awkwardly mount another layer to the description without preserving the required parallel phrasing of 'allocated time,' 'engaged time,' and the final element. It does not properly complete the sentence.
Option 4: 'at' completes the intended phrase 'at the bottom, and at the narrowest part of the inverted pyramid,' maintaining parallelism with the earlier descriptors and preserving the grammatical construction that ties the tiers together. This phrasing coherently signals the final, smallest component alongside the others.
In sum, only 'at' preserves the parallel structure and the meaning of identifying the bottom, narrowest segment as academic learning time within the inverted-pyramid analogy.

202509GE1401T16 Module 10: Academic Style (PRACTICE & QUIZ)

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