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Decomposers | Activity 6.4

Activity 6.4: Decomposers Unit Posttest (20 min)

Students retake the pretest that they took at the beginning of the unit to assess what they have learned about how decomposers move, grow, and function.

Materials You Provide

  • Pencils (1 per student)
  • computers with an Internet connection (1 per student, for online version)

Resources Provided


Print one copy of the 6.4 Decomposers Unit Posttest for each student.


1. Describe the unit posttest.

Explain the purpose of the unit posttest to students:

  • It will help you as a teacher understand how students think about what happens when decomposers move, grow, an function.
  • It will help them think about what they learned and how their ideas changed over time.


Students should be able to answer the questions correctly, so it is reasonable to grade them at this point. Use 6.4 Grading the Decomposers Unit Posttest to check student answers. If you administer the test online, you will receive an analysis of your students’ responses that includes (a) the responses themselves, (b) grading of true-false and multiple-choice responses, and (c) estimates of the learning progression levels of your students.