Examine parts of a whole to define or model a system.
Aligned tasks under 2.5D balance fluency and reasoning so students can explain decisions about Systems.
This standard clarifies expectations for Systems so lesson goals, checks for understanding, and feedback stay aligned.
Start with concrete or familiar examples, connect to prior knowledge, model a clear process, and provide checks for understanding aligned to 2.5D.
Standard 2.5D describes the essential skills and understandings for Systems in Grade 2. It clarifies the learning outcomes and what successful work looks like.
It lays groundwork for the next grade by deepening accuracy and flexibility with Systems, so students can tackle more complex problems later.
Use short exit tickets and tasks where students explain decisions, show multiple representations, or justify answers—directly aligned to 2.5D.
