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1.- Identify the problem

2.- investigate possible solutions

3.- choose the most appropriate solution

4.- Create your prototype and testing their tough

2.- investigate possible solutions

3.- choose the most appropriate solution

4.- Create your prototype and testing their tough

•Students think about the problem.

•

•Students in groups think in different solution and they choose the most appropriate option. To do this, they investigate and observe different bridges. How can they bear more weight?

**An asteroid has fallen and separated the city in two. We have to build a bridge, but… How do we do it?**•

**If you want, you can use the graphical organizer about how to solve problems (Thinking-Based Learning)**•Students in groups think in different solution and they choose the most appropriate option. To do this, they investigate and observe different bridges. How can they bear more weight?

**STEP 2:**

•Students design and build their bridge prototype and test their resistance with different weights.

•Students will only be able to use a kilo of spaghetti, adhesive tape and hot silicone.

•The maximum dimensions of the bridge will be as follows:

* LENGHT: 78 CENTIMETERS

* Height: 39 centimeters

* LENGHT: 78 CENTIMETERS

* Height: 39 centimeters