Texas TEKS 3.3
TEKS Knowledge Statement (Expectation Cluster)
Scientific and engineering practices. The student develops evidence-based explanations and communicates findings, conclusions, and proposed solutions. The student is expected to:
Texas Essential Knowledge and Skills for Science
Cluster contents
Student Expectations in This Statement
3.3 is a TEKS knowledge and skills statement. These are the student expectations under it.
- 3.3.A
develop explanations and propose solutions supported by data and models
- 3.3.B
communicate explanations and solutions individually and collaboratively in a variety of settings and formats
- 3.3.C
listen actively to others' explanations to identify relevant evidence and engage respectfully in scientific discussion.
Teacher's field guide
What This Cluster Means
What Students Need to Do
- Students use observations, measurements, and models to explain results or suggest a solution. They share their thinking through speaking, writing, or diagrams, then identify evidence in a classmate’s explanation and respond respectfully.
What Mastery Looks Like
- A student gives a clear explanation and points to specific data or model features that support it. The student can present the idea, summarize a peer’s evidence, and ask a relevant question.
Common Misconceptions
- Students may treat a guess as evidence or list numbers without explaining how they support an idea. They may think active listening means waiting to speak, or that respectful disagreement is not allowed.
How to Assess It
- Give pairs a plant growth data table. Each student explains which condition worked best using two data points, while the partner records the evidence and asks one question.
Lesson moves
Ways to Teach It
Build and test a paper bridge, record how many cubes it holds, then use the results to propose one design change.
Show a melting ice graph and ask, “What happened, what evidence supports your explanation, and what question would you ask a classmate?”
Play an evidence match game where teams pair explanation cards with supporting data cards and justify each match aloud.
Map puddles around the playground, measure their sizes, and propose a drainage solution supported by the measurements.
Free download
Printable 3.3 Worksheet

A ready-to-print activity worksheet aligned to 3.3, 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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