Describe how some changes caused by heat may be reversed (melting butter) and others cannot (cooking an egg).
This standard clarifies expectations for Reversible vs. irreversible changes so lesson goals, checks for understanding, and feedback stay aligned.
With 1.8B, Grade 1 students practice Reversible vs. irreversible changes in multiple representations and contexts.
Standard 1.8B describes the essential skills and understandings for Reversible vs. irreversible changes 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 1.8B.
Start with concrete or familiar examples, connect to prior knowledge, model a clear process, and provide checks for understanding aligned to 1.8B.
It lays groundwork for the next grade by deepening accuracy and flexibility with Reversible vs. irreversible changes, so students can tackle more complex problems later.
