Illustrate that object length equals the number of same‑size units laid end‑to‑end with no gaps/overlaps.
This standard clarifies expectations for Length as count of same‑size units so lesson goals, checks for understanding, and feedback stay aligned.
In Mathematics, 1.7B defines what success looks like for Length as count of same‑size units—from core skills to real‑world use.
Standard 1.7B describes the essential skills and understandings for Length as count of same‑size units in Grade 1. It clarifies the learning outcomes and what successful work looks like.
Students may rely on procedures without reasoning or mix key terms. Build in quick oral explanations, error analysis, and vocabulary supports tied to 1.7B.
Start with concrete or familiar examples, connect to prior knowledge, model a clear process, and provide checks for understanding aligned to 1.7B.
It lays groundwork for the next grade by deepening accuracy and flexibility with Length as count of same‑size units, so students can tackle more complex problems later.
