From The Ontario Curriculum, Grades 1-8: Language, 2023 (revised) the Ontario Ministry of Education notes:

Research has repeatedly demonstrated that strong oral communication skills are critical for academic and vocational success as well as social-emotional well-being. Oral communication is a complex set of skills that includes both oral language (i.e., listening comprehension and speaking) and non-verbal communication (e.g., body language, facial expression, gestures). In the classroom, intentional communication – using language in a purposeful way – and rich oral language experiences can help students improve their oral language skills. Giving students the opportunity to listen to a wide range of oral texts, including songs, poems, teacher read-alouds, conversations, and presentations, is important. This helps students to develop their own oral language and presentation skills. Developing oral language skills in the early years is essential to the development of literacy, knowledge, symbolic thought, self-regulation, identity, self-advocacy, self-reflection, and lifelong learning.

For a complete summary of the Primary learner from the Language Curriculum please refer to the document below: