国家内学校的划分，是以学生的平均年龄为基础，而非以学期为依据，目的是遵循与教学和管理相关的伊斯兰教法规定，从而根据学生的年龄进行相应的对待。学校按照这些年龄段分为3种类型，如下表所示：

The division of schools within the State is built upon the basis of average student age rather than school terms in order to be bound by the Shari’ah rules related to teaching and discipline, so as to deal with students according to their age. Schools are divided according to these age groups into 3 types as shown in the following chart:

该学校并不仅仅局限于学期之内;相反,它会在若干学期中与前一阶段和后一阶段的学校相衔接,以确保学生按年龄段在三个阶段中合理分布。第一阶段的学校专门招收十岁以下的学生,学生满十岁时应已完成12个学期(4年×每年3门课程=12门课程)。然而,认真的学生在这一阶段可以完成16个学期(4年×每年4个学期=16个学期)。因此,前两个阶段的学校在教授要求的第13至16学期时存在重叠,面向9至12岁的学生。例如,第15学期在第一阶段教授给不想在任何学期中间休学的认真学生,其年龄将为(6+4/15=9¾岁),即处于第一阶段的年龄组内。对于想要休假的学生,其年龄将为(6+3/15=11岁),即处于第二阶段的年龄组内。第二阶段学校与第三阶段学校之间同样存在重叠,它们在教授第25至32学期时有交叠,这些学期是13至17岁学生的必修内容。例如,第28门课程在第二阶段教授给不在任何学期中断的认真学生,其年龄为(6+4/28=13岁),即处于第二阶段。同样,第28门课程也在第三阶段学校教授给在课程之间休学的学生,其年龄为(6+3/28=15⅓岁),即处于第三阶段的年龄组内。第74页图表中所列出的、上述各阶段之间所有重叠的学期都属于这种情况。

The school is not exclusively bound by school terms only; rather it extends to associate with schools of the previous and following stage in a number of terms in order to guarantee distribution of students in the 3 stages according to their age groups. The first stage school of teaching is exclusively for students less than ten years old, with the student having completed 12 school terms upon attaining ten years (4 yrs times 3 courses per year=12 courses). However, the serious student can at this stage complete 16 school terms (4 years times 4 terms per year=16 terms). Accordingly, schools of the first 2 stages overlap in teaching the required terms 13-16 to students between 9 and 12 years, for instance, term number “15” is taught in the first stage to the serious student who is not seeking a break in any term, his age will be (6+4/15= 9 ¾ years) i.e. within the first stage group. The second stage for the student who seeks the holiday, he will be (6+3/15=11 years) i.e. within the second stage age group. This overlap exists also between the second stage school and the third stage school, they overlap in teaching the term “25-32” which are mandatory for students between 13 and 17 years of age. The 28th course for example, is taught in the second stage for the serious student who does not take a break from any term; his age will be (6+4/28=13 years) i.e. within the second stage. Similarly, the 28th course is taught in the third stage school for the students who take a break between courses: his age will be (6+3/28=15 1/3 years) i.e. within the third stage age groups. This is the case for all the overlapping terms between the mentioned stages in the chart on page 74.