Task 2: Amount of Sugar Proportional to Amount of Water
In task 2, the ratios of sugar to water were equal. Children’s performance improved from grades three to five (Figure 15) and was again better for the Control students.
Wrong answers stated in 19% of the cases that C was sweeter, and in 64% of the cases that D was sweeter. Justifications for incorrect answers typically mentioned only one of the ingredients (sugar or water).
