Scientific Skills · Grades 7-10 · Teacher Guide

Case Closed: The Bean Seed Test

Use this teacher guide for a free claim-evidence-reasoning lesson built around bean seed sprouting data.

Classroom Snapshot

What Students Learn

Students connect claims, evidence, and reasoning in a scientific explanation.

Students review a seed test and decide what the data can actually support.

How the Lesson Teaches Before It Assesses

The lesson defines claim, evidence, and reasoning with a modeled example before students judge and improve explanations.

Core Student Actions

  • Read a data table
  • Select evidence that supports a claim
  • Compare strong and weak reasoning
  • Write a concise explanation

Why This Is More Than a Quiz

Students investigate a case file and improve reasoning quality rather than moving through generic CER quiz prompts.

Privacy and Classroom Use

The interactive lesson runs in the browser without student accounts, names, emails, analytics, or cloud storage. Teachers can project it, assign it directly, or pair it with optional print materials.

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