Plan and conduct investigations showing how an object’s speed relates to its mechanical energy.
The intent of 3.8B is to move students from guided examples to independent work with Speed & mechanical energy.
With 3.8B, Grade 3 students practice Speed & mechanical energy in multiple representations and contexts.
Students may rely on procedures without reasoning or mix key terms. Build in quick oral explanations, error analysis, and vocabulary supports tied to 3.8B.
Start with concrete or familiar examples, connect to prior knowledge, model a clear process, and provide checks for understanding aligned to 3.8B.
Standard 3.8B describes the essential skills and understandings for Speed & mechanical energy 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 Speed & mechanical energy, so students can tackle more complex problems later.
