Lesson 15 of 16 · Engineering and Design
Experiment⭐ 30 XP🛠️ Engineer ShopMaking It Work for Someone Else
Engineering and Design.
🎯 Your mission
Run the experiment. Find out what really happens.
⚡ The twist
Constraints make you more creative, not less.
Mind = Blown
🌉 The Eiffel Tower can grow 6 inches taller in summer because metal expands when hot.
Make a hypothesis first
Before you test: how many tries until it works?
What You'll Learn
A design is only good if the person who has to use it can. Testing your build with a real user almost always finds something you never noticed, because you already knew how it was supposed to work.
Key Words
Tap a word to see its definition.
Materials Needed
- card
- tape
- scissors
- notebook
Safety First
- Use scissors carefully and cut away from your fingers.
Steps
Read the explanation above and note the two key terms before you start.
Design a pencil holder for a specific person in your class. Let them use it for one day, collect three pieces of feedback, and make one change based on the feedback rather than your own preference.
Record what actually happened, including anything that did not match what you expected.
Write a conclusion that answers the question this lesson opened with, and state your uncertainty.
Check Your Understanding
Question 1
1 of 2Testing with a real user usually reveals:
Where you see this in real life
Your phone, your bike, your shoes — all designed with this idea.
Stretch Challenge
Try this in real life this week.
Build something — anything — out of stuff in your recycling bin.
For the dinner table
“What's something around the house you'd redesign — and how?”
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
Ready?
Making It Work for Someone Else
Run the experiment. Find out what really happens.
Full screen — no distractions
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