Tradition of a country, or traditions of that country: this is what textbooks and we teachers should pass on to our students.
What the student learns is within a tradition.
Think of Christian tradition in our western countries. To ignore this is a serious lack of knowledge.
In the 19th century missionaries went to Africa to talk and preach about Jesus Christ, but currently this Person can be not known by our students, and they miss the four gospels for example, and treating himself.
Someone said that we Christians can bear more burden of life and suffer dire straits better than a person with no religion. / Photo from: explorers halfdesertedstreets com