A substitute teacher can do a pre-assessment prior to instruction by ____________.

A pre-assessment is designed to gauge students' prior knowledge and understanding of a topic before formal instruction begins. By asking questions, a substitute teacher can effectively engage students and elicit information about what they already know or what misconceptions they might have. This method allows for immediate feedback and provides insights into students’ learning needs, which can be instrumental in tailoring instruction to better suit the class.

While reading a text, participating in a group activity, or taking a quiz can provide some information about students' knowledge or skills, they do not offer the same level of direct interaction and immediate insight as asking questions. Questions can be targeted and adjusted dynamically based on students' responses, making them a strategic choice for pre-assessment.