This paper reviews the current situation of interdisciplinary teaching for primary and secondary school teachers, as well as the cultivation and enhancement pathways of teachers' interdisciplinary literacy and abilities, presenting a focused view of interdisciplinary teaching research. The review finds that existing literature covers a wide range of topics but lacks depth; it mostly consists of speculative discussions or personal reflections, with a scarcity of empirical research. While attention has been given to how pre-service teacher education can enhance teachers' interdisciplinary teaching literacy, there is a neglect of issues regarding the enhancement of interdisciplinary teaching literacy for in-service teachers. Future research in this field should focus on in-depth exploration of "small issues" and prioritize empirical research, emphasizing how to help in-service teachers enhance their interdisciplinary teaching literacy.
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