Virginia SOL 3.1.e.ii

Science3rd GradeScientific and Engineering Practices

The Standard

develop a model (e.g., diagram or simple physical prototype) to illustrate a proposed object, tool, or process

Virginia Standards of Learning for Science · The student will demonstrate an understanding of scientific and engineering practices by

Teacher's field guide

What Students Need to Do: Students turn a solution idea into a labeled sketch or basic three-dimensional build. They use shapes, arrows, and labels to show parts, steps, and how the idea works.
What Mastery Looks Like: Given a problem, a student creates a model that others can interpret without coaching. The student explains each feature's purpose and improves the model after feedback.
Common Misconceptions: Students may make an attractive picture that does not show how the idea works. They may think a model must be full-sized or operational, or they may omit needed labels, arrows, or steps.
How to Assess It: Exit ticket: Design a tool that keeps pencils from rolling off a desk. Draw and label the model, add arrows if needed, and explain how it works in one sentence.

Lesson moves

Give pairs cardboard, tape, straws, and cups to build a prototype tool that moves a cotton ball without touching it.
Ask, "How does your model show what happens first, next, and last?" Students write three sentences and compare with a partner.
Play Model Match: students match diagrams to function cards, then add two labels or arrows that make each model clearer.
Examine a can opener, then sketch one improvement for safer use and label how the changed part would work.

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A ready-to-print activity worksheet aligned to 3.1.e.ii, with an answer key for the teacher on its own page. No account needed.

PDF, US Letter, prints cleanly in black and white.

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