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# Unit 4: User Interfaces and Experiences

## Learning Objectives

In this unit, we'll learn how process and validate user inputs in Python.

> NOTE: for extra optional bonus material, see also [Unit 4B](/intro-to-python/units/unit-4b.md)

## Discussions and Notes

* User Interfaces (UI) and User Experience (UX)
* Capturing and Validating User Inputs:
  * [The `input()` Function](/intro-to-python/notes/python/inputs.md)

## Activities and Exercises

* ["Rock, Paper, Scissors" Exercise](/intro-to-python/exercises/rock-paper-scissors.md)
* ["Shopping Cart" Project](/intro-to-python/projects/shopping-cart.md)


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