Investigate and explain how soils (e.g., sand, clay) form by weathering of rock and decomposition of plant/animal remains.
The intent of 3.10B is to move students from guided examples to independent work with Soil formation.
Aligned tasks under 3.10B balance fluency and reasoning so students can explain decisions about Soil formation.
Students may rely on procedures without reasoning or mix key terms. Build in quick oral explanations, error analysis, and vocabulary supports tied to 3.10B.
Start with concrete or familiar examples, connect to prior knowledge, model a clear process, and provide checks for understanding aligned to 3.10B.
Standard 3.10B describes the essential skills and understandings for Soil formation in Grade 3. It clarifies the learning outcomes and what successful work looks like.
It lays groundwork for the next grade by deepening accuracy and flexibility with Soil formation, so students can tackle more complex problems later.
