Africa is one of the continents that show more consciousness in their belief and Nigeria cannot be excluded. However, in recent decades, Nigeria has been experiencing high surge of Islamic based schools. These school pupils suffer as they undergo rigorous learning from two major curriculums, thus, Western and Islamic. Combining these curriculums together is referred to integration on the basis of Islamic view point. This research work was carried out to determine the implementation of content on dual system using survey methods. The findings revealed that the content has influences in many aspects of the pupils such as; developing the skill of reciting, memorization of holy Qur’an, incorporating intellectual, emotional, spiritual and physical aspects in all subject areas. In the same vein, Fisher’s Exact test in SPSS software was used for the null hypothesis testing which portrayed that there was no significant effect in implementing content of IIBC on dual Islamic education in Muslim preschool children in Sabon Gari LG, Zaria as the value is statistically significant, χ2 (4) = 5.227, p = 0.667 at 5%. The null hypothesis is therefore retained. The paper recommended that the school management should endeavour to provide enabling instructional materials for proper learning as such would not affect the pupils’ performance and reduce over burdening.