Teaching the religion exists in all schools in Poland, but isn't compulsory. Parents or older students (over18 of years) can decide, whether they want to attend this object. Data concerning the participation can be in a Ministry of the Education. I am greeting.
Religious education is mandatory in public schools in my country Zimbabwe, up to the age of 16years. As for the date to support this, it can be found in our Ministry of Education Sports and Culture.
The religious education is possible in all types of schools, on all levels, irrespective of the form of the property. Nobody is forced to attend for classes in the religion. Parents or children are deciding on it alone, when are over 18 years old. Unfortunately, I cannot more write about the international context. Greetings
Hello, Monserrat and colleagues. Religious education doesn´t exist at Public Schools in Argentina. Only private schools have any type of religious education.
In the Czech Republic the religious education is not compulsory. In cooperation with local parishes, it is offered at some primary schools and after that only at church secondary schools
In Italy religious teaching is present at every level of school, from kindergarden until high school. It is a confessional teaching, catholic to be precise, even if it offers also knowledge of other religions and prepares to dialogue. Among its aims in fact there is the preparation of the students to become good and right citizens. It is not compulsory, but the family or the student (when he is adult) can choose it or not. It takes one hour a week in the secondary schools and two hours in the primary and nursery school. Until the end of primary school, until the first degree of secondary school (14y.o.), if you do not choose this subject you can do something else under the control of a teacher (do your homeworks or maybe study another topic chosen by the school). Beginning with the second degree of secondary school (high school), you can also choose to stay at school doing what you want without a teacher and even go out of the school (with permission of parents if not yet adult and freely if you are of age). The advancements of the students are not indicated with marks, but only with evaluations like “not sufficient, sufficient, fair, good, excellent”.
In my country,the religius education must be thought in every public school according to the religion of each student. The school is obliged to facilitate so that education ia carried out properly.
In Ireland (Republic of) RE has been on the core curriculum at both primary and second level, although parents always had the right to withdraw their children. This is changing in recent years: RE is optional at second level since the Framework for Junior Cycle (2015) was introduced into schools in 2019. It is also a matter of contention now at primary level.
The work of Gareth Byrne might be helpful to you in this regard.
It isn't compulsory at Chile, but schools may to offer this optative course, and parents (or tutor) must express their consent in writing, when enrolling their children at school (see (spanish): https://www.curriculumnacional.cl/portal/Educacion-General/Religion/).
It would be interesting to build a dataset oriented to that, because it is a topic from which very substantive research questions for sociology of education and sociology of religion are derived. Count on me if you are thinking of a research project of this nature.