LEGO Games bridge strength maths mission

Quick answer

You can use LEGO bricks to build bridges and test how strong they are by measuring how much weight they can hold. This helps you learn about measurement, maths, and engineering in a fun way.

Learning outcome

By the end of this page, you will be able to measure how much weight different LEGO bridge designs can hold and compare your results to see which ones are the strongest.

• You can use a ruler or measuring tape to measure the length of your LEGO bridge
• You can add small weights (like coins or LEGO bricks) to your bridge one by one
• You can record how many weights your bridge holds before it breaks
• You can compare your bridge designs to find the strongest one

Why this matters

Building LEGO bridges is a fun way to learn about maths and science. When you measure how much weight a bridge can hold, you are using measurement and comparison. You are also learning about engineering – how to make strong structures that can support weight. This helps you understand how real bridges are built, and how engineers use maths to make sure they are safe.

Whether you're building a LEGO bridge for a game or for a real-life project, measurement is important. It helps you know if your bridge is strong enough, and how to make it better.

How it works

Here's how to do a LEGO Games bridge strength mission:

1. Choose your bridge design – You can make a straight bridge, a curved one, or even a bridge with towers.
2. Measure the bridge – Use a ruler or a string to measure the length of your bridge.
3. Start testing – Place small weights (like coins or small LEGO bricks) on the bridge one at a time.
4. Count and record – Keep track of how many weights your bridge holds before it breaks.
5. Compare your results – See which bridge held the most weight and why.

Examples you can see

Imagine you are building a bridge for your LEGO train to cross a river. You build two different bridges:

• Bridge A – A straight bridge made of 10 LEGO bricks
• Bridge B – A curved bridge made of 12 LEGO bricks

You test each bridge by placing weights on them:

Bridge B held more weight, even though it was longer. This shows that the way you build the bridge matters!

Try it as a mini adventure

LEGO Games Bridge Strength Mission

You are the chief engineer of a LEGO city! Your city is under attack, and all the bridges are broken. You must build new bridges to help your LEGO train get across the river. Here's your mission:

1. Design 3 bridges – Use different LEGO bricks to make 3 different bridge designs.
2. Measure each bridge – Use a ruler to measure how long each bridge is.
3. Test the bridges – Place coins on each bridge one by one until it breaks.
4. Record your results – Write down how many coins each bridge held.
5. Find the winner – Which bridge held the most weight?

After you finish, you can make a poster showing your bridges and their results. This is like being a real engineer!

Common mistakes

• Mistake: Not measuring the bridge properly.
  Why it happens: You might not know how to use a ruler.
  Fix: Use a ruler and make sure you start from the edge of the bridge. Ask a parent or friend to help you measure.
• Mistake: Adding too many weights at once.
  Why it happens: You might want to test quickly and rush.
  Fix: Add one weight at a time so you can see when the bridge starts to bend or break.
• Mistake: Forgetting to record the results.
  Why it happens: You might get excited and forget to write down what happened.
  Fix: Use a notebook or a chart to write down how many coins each bridge held.

Parent and carer guide

Helping your child with this mission is a great way to make maths fun:

• Encourage creativity – Let your child design different bridge shapes. It doesn’t have to be perfect!
• Ask questions – “Why do you think this bridge held more weight?” or “How can we make it stronger?”
• Measure together – Use a ruler or tape measure to help your child learn how to measure.
• Keep it light – Don’t focus on getting the "right" answer. Focus on the fun and learning.
• Record results – Help your child write down or draw how many coins each bridge held.

Remember: this is about exploration and discovery. If a bridge breaks, that’s okay – it’s how engineers learn!

Practice questions

1. How many coins did Bridge A hold? Answer: 6 coins
2. How many coins did Bridge B hold? Answer: 8 coins
3. Which bridge was stronger? Answer: Bridge B
4. If you had 10 coins, how many more coins would Bridge A need to hold? Answer: 4 coins
5. How long was Bridge A? Answer: 15 cm
6. How long was Bridge B? Answer: 20 cm
7. If Bridge C held 5 coins and Bridge D held 7 coins, which was stronger? Answer: Bridge D
8. How many more coins did Bridge B hold than Bridge A? Answer: 2 coins
9. What did you measure to find the length of your bridge? Answer: A ruler or measuring tape
10. What did you do to test your bridge? Answer: Added coins one by one until it broke

FAQ

How can I make my bridge stronger?

You can make it stronger by using more LEGO bricks, making a curved shape, or adding supports like towers.

Can I use anything other than coins to test my bridge?

Yes! You can use small LEGO bricks, toy cars, or even small toys to test how much weight your bridge can hold.

Why is it important to measure the bridge?

Measuring helps you understand how long your bridge is, and it helps you compare different bridges to see which one is the strongest.

What if my bridge breaks right away?

That’s okay! Engineers often test things many times. Try making a different design and test again.

Can I do this with my friends?

Yes! You can work together to build and test different bridges. It’s more fun when you team up!