Unit 10 — Structural Engineering and Problem-Solving - Disaster Relief Buildings

• Observation of structure design and material selection
• Testing of prototypes for stability and function
• Discussion of design trade-offs and constraints
• Sketches and notes on design thinking

Completed disaster relief structure design with documentation of problem identified, materials selected, and testing results; presentation explaining how the design meets the identified need

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Students may demonstrate understanding through a teacher-guided interview about their structure design, with the teacher asking questions about the problem, materials chosen, and how the building works. Visual supports such as labeled diagrams or photos of their structure may be used in place of written documentation.

Students may benefit from visual supports such as labeled diagrams of structural components and picture-based design templates to help organize their building plans. Breaking the engineering design process into clearly numbered steps with visual checkpoints can support planning and task completion. For the summative presentation, allow students to explain their design decisions through oral responses, drawings, or a teacher-supported dictation rather than requiring extended written documentation. Providing a simplified planning organizer that prompts students to respond to key questions about their problem, materials, and testing results helps maintain focus on the core concepts without being overwhelmed by output demands.

Extended time should be provided during building, testing, and documentation phases of this unit, as hands-on construction tasks can require additional processing and physical effort. Preferential seating or a low-distraction workspace supports focus during planning and reflection activities. Students should have access to verbal check-ins from the teacher to confirm understanding of task directions before independent work begins.

Visual cues such as illustrated vocabulary cards featuring key structural engineering terms — such as foundation, stability, load, and shelter — should be available throughout the unit to support comprehension and communication. Directions for each phase of the design process should be given in short, clear steps and accompanied by demonstrations or physical examples whenever possible. Partnering MLL students with a supportive peer during building and discussion activities provides additional language modeling, and encouraging students to sketch and label their designs in their home language first can help bridge understanding before transferring ideas to English.

Connecting the disaster relief context to familiar experiences — such as weather events students may know about — helps build a meaningful entry point into the engineering challenge. Offering a simplified version of the design template with sentence starters and guiding questions reduces barriers to participation while still engaging students in the full design process. Breaking the project into smaller, clearly defined stages with teacher check-ins after each phase helps students experience incremental success and maintain momentum throughout the unit.

Students who demonstrate strong grasp of the design process early can be challenged to introduce and analyze additional constraints, such as weight limits, cost ceilings, or multi-hazard scenarios, that require more complex trade-off decision-making. Encouraging these students to research real-world disaster relief engineering solutions and compare professional design choices to their own adds depth and authentic inquiry to the unit. Their summative presentation can be extended to include a critical evaluation of what they would change in a second iteration and why, connecting engineering thinking to reflection and revision at a more advanced level.