Overview of Unit 7 (2 minutes)

(2 minutes) Remind Participants of Context

💷 Use the slides to provide the context, including:

• This is the last unit where students learn new programming concepts.
• We will have a high-level look at the “Libraries” EIPM sequence next.
• Creating and sharing a library with other students. The requirements of this project mirrors the requirements of the AP Create Performance Task

Introduction to Libraries (8 minutes)

💷 Use the slides to introduce the concept of the library. You may want to use physical manipulatives here instead of the slides to describe what libraries are. This physical demonstration can help teachers imagine what it will look like in their own in-person classrooms.

Slides	Speaker Notes
	Click for animation: Click until the library definition appears on the screen. Say: These envelopes represent functions. The envelopes have been grouped together in a folder. This represents a library. A library is a collection of functions that can be used in many different programs. Let’s look inside.
	Say: Let's take a look at what's inside the library. If we open up the folder, we see the functions and some documentation. A library should have documentation for each of the included functions. The documentation should include: how each function works a complete list of the parameters what (if anything) will be returned This detailed type of documentation is also known as Application Program Interface(API). APIs are specifications for how the functions in a library behave and can be used.
	Say: Libraries allow code to be easily used and shared. Imagine if I were a cake shop owner. I might have a website for customers that would use some of this code. I might also have cash registers at my store that use this code. Or maybe I have automated the cake making process and the machines that make the cakes could use this code. Having one library that contains all of this code means that I can easily use this same code in a variety of different apps. I could even share this code with a different branch of my cake making business.
	Say: You've seen libraries in action before. The Math library is built into App Lab. Notice the name of the library first, then after a dot, the name of the function and finally the parameters. This is the same formatting you will use to call functions in libraries: Library name, followed by function name, and finally the parameter(s)
	Do This: Have participants navigate to U7L6 - Level 2. Have participants follow along on their computers as you demo: The functions drawer to show which functions are there and the documentation included. Getting to the libraries using the gear icon

Reminder: While students do not need to use a library in their Create Performance Task, the concept is still in the framework for AP CS Principles, so it may be tested on the AP exam. Going to this depth with libraries here also helps give students practice writing functions with parameters and return.

Reviewing the Unit 7 Project (10 minutes)

(1 minute) Introduce Project

(5 minutes) Review Project Guide

💷 Provide participants time to look at the project guide for this project.

Task:

• Open the project guide.
• Review the requirements and the different steps students will follow in the project guide.
• Consider what you expect a student’s project to look like at the end of this project.

Goal: Understand the requirements and process of the project.

(3 minutes) Review Exemplar

💷 Give participants a tour of the exemplars included. Show participants:

• How to open up the high-scoring exemplar found under “Links for the teachers” in lesson U7L10.
• How the high-scoring exemplar app works.
• Where they can find the written responses that accompany the app.

(1 minute) Wrap Up