Classify and sort regular and irregular two‑dimensional shapes using informal and formal geometric language.
For Grade 1, this standard focuses on Classify & sort 2D figures and prepares learners for increasingly complex tasks.
In Mathematics, 1.6A defines what success looks like for Classify & sort 2D figures—from core skills to real‑world use.
Use short exit tickets and tasks where students explain decisions, show multiple representations, or justify answers—directly aligned to 1.6A.
It lays groundwork for the next grade by deepening accuracy and flexibility with Classify & sort 2D figures, so students can tackle more complex problems later.
Students may rely on procedures without reasoning or mix key terms. Build in quick oral explanations, error analysis, and vocabulary supports tied to 1.6A.
Standard 1.6A describes the essential skills and understandings for Classify & sort 2D figures in Grade 1. It clarifies the learning outcomes and what successful work looks like.
