Teachers should possess the skills to effectively differentiate instruction, taking into account various factors that may hinder students' learning. They should also be aware of the physical, social, and intellectual development of children, adapting their teaching to support students at different stages of development. Additionally, teachers should have a clear understanding of the needs of all students, including those with special educational needs, high ability, English as an additional language, and disabilities, and be able to evaluate and utilize appropriate teaching approaches to engage and support them.