MYP Design Year 1 · Unit 3 · Lesson 23
Protect the Payload
L23 · 01

Success Criteria

If you do not define what success means, it is hard to judge whether the design actually works.

Student Materials
Criterion B.i
✓
CLEARAnother person can understand what success looks like.
T
TESTABLEYou can check it later with evidence.
R
RELEVANTIt connects to the challenge, payload, user, materials, or function.
Use ← → / Space to navigate.Lesson 23 · B.i formal
Learning Focus
Criterion B.i
L23 · 02

Today’s formal task: develop a list of success criteria.

DEVELOPCreate and improve a useful list of criteria that defines what the solution should achieve.
YEAR 1 EXPECTATION

A clear list of success criteria is enough. Students are not required to create a detailed higher-year design specification.

B.i summative evidenceList of success criteria
Mini-Lesson
Constraint vs success criterion
L23 · 03

Fixed constraint

“Use only the provided material kit.”

Success criterion

“The package keeps the payload intact during the standard drop test.”

BOTH MATTER

Constraints limit the design. Success criteria describe what a successful solution should achieve.

Students may include important constraints in the final list when useful.Different jobs
Strong Criteria
Make success checkable
L23 · 04

Specific enough

“Fits inside 15 × 15 × 15 cm before testing.”

Testable

“Payload remains intact after the standard drop test.”

User / function focused

“Payload can be inserted and removed without damaging it.”

Avoid vague words such as “good,” “nice,” or “strong enough.”Checkable language
Criteria Builder
Where can criteria come from?
L23 · 05
ChallengeWhat must the package do?
→
Evidence + constraintsWhat conditions matter?
→
Success criteriaHow will we know it works?
Students build criteria from the challenge, not from random categories.B.i thinking
Workshop
Success Criteria Builder
L23 · 06
Design Studio

Turn vague goals into useful criteria.

STEP 01

Sort

Identify strong, weak, and fixed-constraint examples.

STEP 02

Rewrite

Improve vague criteria.

STEP 03

Develop

Create your own final list for Protect the Payload.

Practice before formal individual list.Main workshop
Formal B.i
Your list of success criteria
L23 · 07

A strong list usually covers the core function first.

payload protectionsizeaccess stability / controlmaterial useanother relevant feature

These are thinking areas, not mandatory headings. Write criteria that fit the challenge.

5–7 useful criteria is enough.Summative evidence
Exit Audit
Could you test this later?
L23 · 08

Read each criterion and ask:

“What evidence would show whether this criterion was met?”

Next lesson

Students test materials, joining techniques, and workshop safety before finalizing the chosen design.

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