The aim of collecting the students’ feedback was to determine if activities which implement IBSE strategies are more successful than the actual science lessons and also if these IBSE activities are more close to the students science class ideal than the actual ones. Comparing the students’ feedback about actual science lessons and IBSE lessons, it was find out that, on the average, 45% of the students considered that from different aspects the two type of lessons are the same. For example, 51% of students gave the same answer before (about actual science lessons) and after (about IBSE science lessons) the implementation to the question related to topic understanding. Thus, for 51% the IBSE activities didn’t change anything in terms of topic understanding. Other 50% of students considered they have the same opportunity to ask questions in both lessons - actual and IBSE. The same percentage, 50% of students gave identical answers to the questions about level of individual effort and content - about studying facts and figures. At the other extreme, only 32% of students considered that two types of lessons are identical in terms of importance to society in general. For 86% of the students it is important (27%), very important (24%) or extremely important (35%) to participate to enjoyable science lessons. The results show that for 95% of students, the IBSE activities were at least enjoyable, compared to 83% who find actual science lessons enjoyable to extremely enjoyable (Fig. 2). Thus, although the actual science lessons are not far from ideal, in terms of enjoyability, the IBSE activities exceed the ideal. In (Dumitrescu, Olteanu, Gorghiu, & Gorghiu, 2014) it is presented the feedback of 189 students at lower and upper secondary school level who participated to Chemistry lessons which implemented IBSE strategies. If for 86% of the primary students it is important, very or extremely important to participate to enjoyable science lessons, for the secondary school students the expectations for Chemistry lessons are higher: for 91% of the students is, at least, important to participate to enjoyable lessons. Those expectations are met in actual lessons for 69% of the secondary school students and for 83% of the primary students. IBSE activities met the expectation in terms of enjoyability for 80% of the secondary school students and for 95% of the primary students. For 58% of the participant primary students it is extremely important or very important to feel contented in their science lessons. 69% of the students felt very or extremely contented in the science lessons which implemented IBSE activities compared to only 47% which feel the same in their actual science lessons.