Engineering Design Challenges | 8 Challenges, Case Cards & a Project | Grades 6–8

Engineering Design Challenges is a printable STEM unit for Grades 6–8 with 33 pages of classroom material and a separate 13-page teacher guide. Students take on eight design tasks that use simple materials, such as a paper bridge, an index-card tower and a paper boat, and they explain and justify their design decisions in writing. It is written for middle school science and technology teachers who want structured challenges with explanations, worked examples, supported practice and case cards, and who value a reasoned process over a polished prototype.

The unit is built from eight challenges, and each one has three pages: an explanation, a practice page with supported explanation, and a case card that asks students to give reasons. The first three challenges work with paper and cards. The ramp and the paper figure add motion and protection, and the last three tasks connect to everyday needs: an accessible desk organizer, a sound signal without electronics and a package made from reused material. A page on precise models and interpretation, two vocabulary pages and a learning check follow. The unit closes with a project brief, a project record and a reflection and next step page. Each challenge stands on its own, so you can use all eight or only some.

What's Included

• Classroom Material: 33 pages (PDF)
• Teacher Guide: 13 pages (PDF) with answers and teaching notes
• Editable DOCX text editions of the classroom material and the teacher guide
• Presentation with 17 slides for introducing and wrapping up challenges
• Assessment key with feedback notes and a differentiation and observation chapter
• Original illustrations and model diagrams
• Sources, model limits and AI disclosure in the teacher guide (text and illustrations were created with ChatGPT / OpenAI)

The 8 Challenges

• Challenge 1 – Paper bridge: plan, test and justify a bridge made of paper.
• Challenge 2 – Index-card tower: design a tower from index cards and improve it.
• Challenge 3 – Paper boat: shape a boat to meet stated requirements.
• Challenge 4 – Marble-free ramp: plan and evaluate a ramp without a marble.
• Challenge 5 – Protect a paper figure: build a structure that keeps a figure safe.
• Challenge 6 – Accessible desk organizer: develop an organizer with access in mind.
• Challenge 7 – Sound signal without electronics: design a signal that needs no power.
• Challenge 8 – Reused-material package: develop a package from reused material.
• Precise model and interpretation – A page on reading and describing a design model, plus two vocabulary pages.
• Learning check and project – A learning check, then a project brief, project record and reflection and next step.

Students Will Learn To

• Develop a design and explain the reasons for it
• Plan, build and test a solution using simple materials
• Use evidence from a test to judge and improve a design
• Consider who will use a design, including access needs
• Record decisions and describe a next step in a project

Perfect For

• Grades 6–8 science or technology teachers who want hands-on design tasks
• Teachers who want students to explain decisions, not only build
• Classrooms with limited supplies, since the tasks use paper, cards and simple materials
• Teachers who plan with a presentation and a closing project
• UK and Australia: roughly Years 7–9

Why Teachers Choose This Unit

• Every challenge has an explanation page, a practice page and a case card, so building is tied to reasoning
• The tasks use simple materials; the teacher guide describes the preparation
• The separate teacher guide gives expected responses, case guidance and teaching notes for each challenge
• The teacher guide includes a differentiation and observation chapter and an assessment key with feedback
• The final three challenges connect design to access, sound signals and reuse of materials

Every resource is built around the curriculum you teach – and if something doesn't fit your standards, the TeachLessons Guarantee applies: we adapt it for you.

Created with AI assistance. Texts and illustrations were generated with AI support and edited for classroom use; sources and production notes are at the end of the teacher guide.

Frequently Asked Questions

Which standards does this fit?

The unit is written for Grades 6–8. The closest US framework is NGSS MS-ETS1 (engineering design). No alignment or endorsement is claimed.

Are answers included?

Yes. The separate teacher guide has expected responses, case guidance and teaching notes for all eight challenges, plus an assessment key with feedback notes.

How long does the unit take?

The material gives no timings, so plan it by group. The eight challenges are self-contained, which lets you teach them in order or pick the ones you need, and the learning check and project come at the end.

Do I need many materials?

The tasks work with simple materials such as paper and index cards. The teacher guide describes the preparation for each challenge.