What level of math sequence uses two-dimensional drawings?

The correct answer indicates that the semi-concrete level of math sequence utilizes two-dimensional drawings. In this learning phase, students engage with mathematical concepts by using visual representations, such as diagrams, models, or drawings, that help bridge the transition from a tangible understanding of concepts to more abstract ideas.

At the semi-concrete level, learners can interact with both physical and visual materials, enabling them to see how mathematical principles apply in a two-dimensional format. This level builds a crucial foundation, as students start to develop an understanding of mathematical relationships and concepts through concrete examples presented visually. Such tools are particularly effective for fostering comprehension, as they help students visualize problems and solutions before they move on to more abstract reasoning and calculations.

In contrast, the other levels either rely solely on physical manipulation of concrete objects without introducing visual aids or move fully into abstract thought without the support of imagery, making semi-concrete the ideal answer for this question regarding the use of two-dimensional drawings.