Case Closed: CER Companion Worksheet Pack

Print-and-go companion pages for the free Case Closed: The Bean Seed Test lesson at OsmiaLearning.com. Use the online lesson first or alongside these pages—the claim, evidence, and reasoning work is designed to match.

Students investigate whether soaking bean seeds affects sprouting, then practice separating a claim from the evidence that supports it and the reasoning that connects them. They compare results, identify stronger evidence, and write a clear evidence-based explanation using the CER framework.

What is included

• Visual Notes: 2 illustrated student pages with a matching answer key
• Standard Worksheet: 2 student pages with a matching answer key
• Companion Teacher Guide with pacing tips and discussion prompts
• Terms of use

Classroom use

The free online lesson is self-paced and works well for stations, substitute days, flipped classrooms, or scientific-reasoning review. Assign either student format and keep the other for review, differentiation, makeup work, or sub plans. Every student page has a matching answer key.

Grades 7–12. Best fit for middle school science, introductory biology, and claim-evidence-reasoning units. No internet is required for the printable pages after download. Single-teacher license. © Osmia LLC.