This question tests students’ understanding of fractions as equal parts of a whole and the concept that “half of half” equals one-fourth. Students need to recognise that figures (i) and (ii) each have 1/4 of their areas shaded because “half of half” of the shape is shaded. However, figure (iii) does not represent 1/4, as it is divided into unequal parts, and the shaded area is not one-fourth of the whole.
Students choosing Option B may have dismissed figures (i) and (ii), assuming they are not valid representations of 1/4 because the shaded areas are triangular or asymmetrical. However, these students fail to notice that figure (iii), the circle, is also divided into unequal parts. This suggests that they may not have understood the importance of equal divisions in defining fractions.
Students selecting this option correctly identified that 1/4 is shaded in figure (i). However, they may have dismissed figure (ii) due to unfamiliarity with its rectangular division and ignored figure (iii) entirely. This indicates an incomplete understanding of fractions in diverse representations.
Students selecting this option likely identified figure (ii) as correct but assumed figure (iii) was also valid. They may not have recognised that figure (iii) is divided into unequal parts, showing a limited understanding of how fractions relate to equal partitions. Additionally, these students may have missed the triangular shading in figure (i), demonstrating difficulty generalising the concept of fractions.