A teacher helps students understand a dense passage by breaking it into smaller sections and guiding them through each part. Which instructional strategy is the teacher using?

Inquiry-based learning encourages students to explore and investigate topics through questions and hands-on experiences. While it promotes active engagement, it does not explicitly entail breaking down dense passages into smaller sections. Therefore, it does not fit the description of the teacher's strategy in this scenario.

Dual coding refers to the use of both verbal and visual materials to enhance learning. This strategy combines words and images to help students understand concepts better. However, it does not specifically involve breaking text into smaller sections or guiding students through them, making it an incorrect choice for this context.

Concept mapping is a visual representation of relationships between concepts, often used to organize and structure knowledge. While useful in illustrating connections, it does not involve the step-by-step breakdown of dense passages, which is the focus of the teacher's instructional strategy.