01
![U4L1_Engage.png](https://assets.education.lego.com/v3/assets/blt293eea581807678a/blta7ef7d3aa433da2c/628fcc0aead0d2559909ca9e/U4L1_Engage.png?locale=en-au&auto=webp&format=jpeg&width=1800&quality=90&fit=bounds)
Daniel finds something while exploring a dark cave. Can you help him see it better?
02
![Explore_Daniel.png](https://assets.education.lego.com/v3/assets/blt293eea581807678a/blte2bc585a3ed49a48/62710f0976b17f2f94787491/Explore_Daniel.png?locale=en-au&auto=webp&format=jpeg&width=1800&quality=90&fit=bounds)
How can we see objects in a dark environment?
If the path of light to an object is blocked, how does that affect our ability to see it?
03
![Explore_Daniel.png](https://assets.education.lego.com/v3/assets/blt293eea581807678a/blte2bc585a3ed49a48/62710f0976b17f2f94787491/Explore_Daniel.png?locale=en-au&auto=webp&format=jpeg&width=1800&quality=90&fit=bounds)
What can we do to see an object if light is blocked from it?
04
![aae243a1-32d4-4924-b9c7-e079a71c2af4.png](https://assets.education.lego.com/v3/assets/blt293eea581807678a/blt4fecd933f0cbf476/6295da6d1bba2b0f5eb2e031/aae243a1-32d4-4924-b9c7-e079a71c2af4.png?locale=en-au&auto=webp&format=jpeg&width=1800&quality=90&fit=bounds)
Build a model car to help Daniel see objects in the cave.
Add a light to the front of his car.
05
06
Program your model to show how a path of light lets an object be seen.
07
![Explain_Daniel.png](https://assets.education.lego.com/v3/assets/blt293eea581807678a/blt159154305e2aa4ee/62710efe76b17f2f9478748d/Explain_Daniel.png?locale=en-au&auto=webp&format=jpeg&width=1800&quality=90&fit=bounds)
Use your model to explain how light reflected from an object enters the eyes so that we can see the object.
08
![Explain_Daniel.png](https://assets.education.lego.com/v3/assets/blt293eea581807678a/blt159154305e2aa4ee/62710efe76b17f2f9478748d/Explain_Daniel.png?locale=en-au&auto=webp&format=jpeg&width=1800&quality=90&fit=bounds)
Use your model to explain why we can’t see the object when the path of light to it is blocked.
09
![MicrosoftTeams-image_(4).png](https://assets.education.lego.com/v3/assets/blt293eea581807678a/bltb3b6bb58fa99ec1b/629470e531e9d30f65bee2a5/MicrosoftTeams-image_(4).png?locale=en-au&auto=webp&format=jpeg&width=1800&quality=90&fit=bounds)
Update the model with a motor and program the motor so that the car can move to a new location.
10
![MicrosoftTeams-image_(4).png](https://assets.education.lego.com/v3/assets/blt293eea581807678a/bltb3b6bb58fa99ec1b/629470e531e9d30f65bee2a5/MicrosoftTeams-image_(4).png?locale=en-au&auto=webp&format=jpeg&width=1800&quality=90&fit=bounds)
Show how the car’s location changes the path of light and our ability to see the object.
11
![MicrosoftTeams-image_(4).png](https://assets.education.lego.com/v3/assets/blt293eea581807678a/bltb3b6bb58fa99ec1b/629470e531e9d30f65bee2a5/MicrosoftTeams-image_(4).png?locale=en-au&auto=webp&format=jpeg&width=1800&quality=90&fit=bounds)
Explain if moving the car could help Daniel see the object better.
12
![GslastEssentialMinifig.518563b8.png](https://assets.education.lego.com/v3/assets/blt293eea581807678a/blt8a54880687149983/62710efefbd1dd35f419cee2/GslastEssentialMinifig.518563b8.png?locale=en-au&auto=webp&format=jpeg&width=1800&quality=90&fit=bounds)
Great job!