MYP Design Year 1 · Unit 5 · Lesson 50
Product Development
L50 · 01

Making Day 2

Continue building, but stop long enough to catch quality problems before they become permanent.

Student Materials
Quality-control lens
A
ALIGNMENTAre important parts positioned as intended?
J
JOINTSDo connections resist the force they will experience?
U
USER ACCESSCan the user reach, insert, remove, or carry as planned?
Use ← → / Space to navigate.Lesson 50 · C formal
Learning Focus
Build + quality control
L50 · 02

Today students will…

01

Continue

the build according to the plan and approved changes.

02

Check

alignment, joints, fit, stability, and access.

03

Refine

one weakness before final finishing.

C.ii–iv evidenceMaking remains priority
Mini-Lesson
Quality control is evidence, not decoration
L50 · 03
Alignment

Does poor alignment affect function or stability?

Joint

Is the connection clean and strong enough for its job?

Fit

Do the real learning materials fit without forcing?

Access

Can the user complete the intended task naturally?

2–3 minute checkpoint, then build.Function + craftsmanship
Mid-Build Test
Check one success criterion early
L50 · 04
ChooseOne criterion you can check now.
→
TryRun a quick informal check.
→
RefineFix a weakness before final assembly.
This is not the final Criterion D test.Informal refinement
Build Workshop
Day 2
L50 · 05
Build

Complete functional features and correct one evidence-based weakness.

STEP 01

Continue

Build remaining functional parts.

STEP 02

Check

Use real materials/user action where possible.

STEP 03

Refine

Strengthen, realign, resize, or simplify as evidence requires.

Main buildC.ii–iv
Change Record
Keep the list current
L50 · 06

If the plan changed, record it now.

Planned _______ → changed to _______.

A change can be useful evidence of adapting during creation. It does not automatically mean the original plan was poor.

C.ivList, do not over-write
Exit + Cleanup
Ready for final making day
L50 · 07

Before cleanup, confirm:

“My major functional parts are complete or clearly on track, and I know the exact refinement/finish tasks for Day 3.”

Next lesson

Students finish construction, complete quality checks, and prepare the solution for authentic Criterion D testing.

Designed by David Xu · © 2026 David Xu. All rights reserved. Educators and students are welcome to use these materials for non-commercial teaching and learning with attribution. Please share the original link when possible. Reposting, redistributing modified copies, removing attribution, or commercial use requires prior permission.