# Lecture 6 Homework Assignment

Congratulations on finishing Lecture 6! Please watch the following video to learn what's your homework to get your hands on the skills you learned in this lecture.

{% embed url="https://youtu.be/AZVpkwRhEaY" %}

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{% tab title="Learning Objectives" %}
After completing this homework assignment, you'll be able to:

* Understand how double spending works.
* Identify double spending vulnerabilities.
* Define tests for catching error in double spending contracts
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## Collaborate with the Pioneers Community

Remember that you can interact with the participants of the PPP through the [IOG's technical community on Discord](https://discord.gg/inputoutput) by joining the channels under the Plutus Pioneers category.

If during the program you have questions about Plutus, we invite you to share them at [Cardano Stack Exchange (CSE)](https://cardano.stackexchange.com/) by adding the `plutus-pioneer-program` tag to your question. The IOG's Education Team members will monitor these questions to support your learning journey. Whenever you share a question at CSE, you're helping to build up the Cardano and Plutus development knowledge base.

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