OpenSciEd Unit 7.2 · Lesson 09 · 9.B
Design Must-Haves
From Teacher Edition
Facilitation guidance from the lesson plan — what to notice in student thinking and how to respond while teaching.
Building towards
9.B Optimize performance of a design that represents systems and energy flows between systems by revising and retesting to incorporate characteristics of the most promising solutions.
What to look / listen for
and listen for
As teams reflect on their work in Lesson 9 to complete Engineering Design Rubric, make sure students are referring to their optimal design and the associated test results recorded on Design Testing Matrix in their science notebooks. At this point in the unit, this rubric rating can be considered a summative assessment, as students have had more experience with engineering design in this lesson and previous lessons.
What to do
If students are struggling to identify where their team is on Engineering Design Rubric, ask them to point to specific evidence of a category and level of mastery on their optimal design and/or the partner-tested data on Design Testing Matrix. Ask them how they incorporated the most promising design components (Lesson 7) and thought through the consequences of design changes in Lesson 8. Push them to make an evidence-based argument for why they highlighted certain statements.
Materials
Last updated from official OpenSciEd on 7/1/2026
Assessment opportunity guidance
L09-AO3.html
Student handout
7.2 Lesson 9 Handout Design Must-Haves.docx
Teacher guide
7.2 Lesson 9 Teacher Edition.docx