There is a long tradition of the ESL and EFL classroom as a space of cultural instruction. In fact, given the overlapping nature of language and culture, this is almost inevitable. And yet, this interdisciplinary approach need not end with culture alone. There are many ways in which the English classroom can include and in fact exploit a variety of subjects and skills – especially for young students.
Already in young learner contexts, it is common to find elements of music, dance, art, and physical education built into activities, but this incorporation can be expanded into the hard sciences, and even into the higher grades. By conscientiously pairing age and level with the interdisciplinary topics that are appropriate, a teacher can add variety and richness to their classes. Not only that, but this inclusion can help set students up for success outside of the English classroom.
I have included two examples of this, but this integration is limited only by imagination: