Texas TEKS 5.3.A

Science5th GradeScientific and engineering practices

The Standard

develop explanations and propose solutions supported by data and models

Texas Essential Knowledge and Skills for Science

Teacher's field guide

What Students Need to Do: Students use observations, measurements, graphs, and models to explain why something happened. They suggest a solution and point to evidence showing why it should work.
What Mastery Looks Like: A student makes a clear claim, cites relevant data, and explains how a model supports the claim. The student proposes a workable solution tied to the evidence.
Common Misconceptions: Students may state an opinion without citing measurements or observations. They may treat a model as an exact copy, or propose a solution unrelated to the data.
How to Assess It: Give students plant growth data and a root diagram. Ask, "Why did Plant A grow more, and what change would help Plant B? Use both sources."

Lesson moves

Build paper bridges, test how many coins each holds, record results, draw a model, and propose one evidence-based redesign.
Ask students to explain which soil best supports bean growth using a data table and a root model.
Play an evidence-match game where teams pair explanation cards with supporting data tables, graphs, or models.
Count one day of cafeteria waste, model where it goes, and propose a reduction plan supported by the item counts.

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