Research Question 2: This question sought to determine the extent simulated computer animation teaching
strategies remedied the observed learning difficulties among grade 12 students. Table 1 shows the frequencies and
proportions of research subjects and the type of learning difficulties they experienced after application of
remediation programme. It can be observed that the students experienced widespread difficulties in only
12concepts/sub-concepts, (reducing from 25 concepts before remediation). There is a general reduction of the
proportion of students experiencing each identified learning difficulty. Percentage reduction in the widespread of the
difficulties for various difficult concepts ranged from 7.7% to 63.4%. Majority of the concepts had their
widespread difficulty reduced by over 30%. The mean percentage reduction in the widespread of the difficulties was
32.64%, showing that on the average, the difficulties experienced by students in the learning of nuclear chemistry
concepts reduced by 32.6% through the use of simulated computer animation teaching strategies. Certain NC
concepts continued to indicate widespread difficulties among students in spite of the application of the remediation
strategies. Some of the 12 concepts that remained difficult include: