OpenSciEd Unit 8.1 · Lesson 14
Refine from stakeholder input
From Teacher Edition
Facilitation guidance from the lesson plan — what to notice in student thinking and how to respond while teaching.
Building towards
14. B Engage in an analysis to consider the trade-offs of prioritizing particular uses and functions of materials to assess their relative effectiveness for the optimization of the design.
What to look / listen for
Students should list the design decisions they have made according to their redesign table and decision matrix and explain the potential effects (which can be positive and negative) that each design decision will specifically have on stakeholder concerns or considerations. Students also consider what effect the decision will have on the overall design of the device and explain how those decisions impact the performance of the design (which can be positive and negative).
What to do
Column 1
If students need help listing their design decisions, direct them back to Redesigning Your Protective Device. Ask students what changes were made to the design and have them list those changes in column 1. Also have students look back at their decision matrix. Ask students what decisions they made to assign primary, secondary, and tertiary criteria. If they prioritized one criterion over another, have them add that design decision to column 1.
Column 2
Direct students to look at their list of design decisions in column 1. Ask students, How would this decision affect the people who use or rely on this device? Would those people have any additional concerns because of this choice? Ask students these two questions about each design decision listed.
Column 3
Direct students to look at column 1 one last time and think about how these decisions impacted the actual physical structure of the device. Ask students what would happen to the device if they made a different decision, used a different material, or prioritized something else instead of what they had chosen. Tell students to write those potential outcomes of different decisions on their device structures in this third column.
Materials
Last updated from official OpenSciEd on 6/5/2026
Assessment opportunity guidance
L14-AO2.html
Student handout
8.1 Lesson 14 Handout Redesigning Your Protective.docx
Google Form
Not digitized yet — teacher-ready Form required for Drive export
Teacher guide
8.1 Lesson 14 Teacher Edition.docx