What is an important aspect of the lesson sequence that Mrs. Green will implement for teaching subtraction?

Whole group discussions play a crucial role in Mrs. Green's lesson sequence for teaching subtraction because they facilitate collaborative learning and enable students to engage with the material in a shared environment. Such discussions allow for the exploration of different strategies and thought processes related to subtraction, encouraging students to articulate their understanding and reasoning.

During these discussions, Mrs. Green can prompt students to share their approaches to specific subtraction problems, thereby fostering a deeper comprehension of the concepts involved. This interaction not only helps clarify any misunderstandings but also builds a supportive learning community where students feel valued and encouraged to participate.

In contrast, while independent assessments, pencil and paper exercises, and digital learning tools have their merits in the teaching process, they do not inherently foster the same level of interactive dialogue and collaborative learning that whole group discussions provide. Thus, whole group discussions are particularly effective in establishing a solid conceptual foundation in subtraction for students.