AP Computer Science Principals

Big Ideas

  • Creativity
  • Abstraction
  • Data and Information
  • Algorithms
  • Programming
  • The Internet
  • Global Impact

Computational Thinking Practices

  • Connecting computing
  • Creating computational artifacts
  • Abstracting
  • Analyzing problems and artifacts
  • Communicating
  • Collaborating


Computer Science: The New Literacy

Whether it’s 3-D animation, engineering, music, app development, medicine, visual design, robotics, or political analysis, computer science is the engine that powers the technology, productivity, and innovation that drive the world. Computer science experience has become an imperative for today’s students and the workforce of tomorrow.

The AP Program designed AP Computer Science Principles with the goal of creating leaders in computer science fields and attracting and engaging those who are traditionally underrepresented with essential computing tools and multidisciplinary opportunities.


Rigorously Developed

In development since 2008, AP Computer Science Principles was created with significant support from the National Science Foundation. The College Board worked with more than 50 leading high school and higher education computer science educators who piloted the course at their institutions. This rigorous process of development and testing has yielded a course that not only reflects the latest scholarship in the field, but provides students with a relevant and engaging learning experience.

Over 90 colleges and universities have stated their support for the course, with the majority anticipating they will award college credit for high exam scores.



AP Computer Science Principals


Code.org- AP Computer Science Principals Syllabus

Mr. Burrill's Course Syllabus

---Class Links---

Code Studio - App Lab - Blown to Bits - Nimbus Screencast

Unit 2 - Digital Information

This unit further explores the ways that digital information is encoded, represented and manipulated. In this unit students will look at and generate data, clean it, manipulate it, and create and use visualizations to identify patterns and trends.

Day 13 Unit 2- Lesson 1 & 2- Bytes and File Sizes / Text Compression

Download PowerPoint Day 13

Today's Agenda-


  • Vocabulary- Kilobyte, Megabyte, Gigabyte, Terabyte, Heuristic, Lossless Compression, Lossy Compression


Day 14 Unit 2- Lesson 3 & 4- Encoding B&W + Color Images

Download PowerPoint Day 14

Today's Agenda-


  • Vocabulary- Image, Raster, RGB Colors, Pixels, Resolution, metadata, Function, Photo Filter, JPEG Image, GIF Image, Favicon
  • Document- JPEG vs GIF (Read: 1- What is JPEG and 2-Why Use JPEG)


Day 15 Unit 2- Lesson 4 & 5- Lossy vs Lossless Compression + Encoding Color Images

Download PowerPoint Day 15- None

Today's Agenda-

  • Quiz
  • Complete Lssson 5- Personal Fav Icon - Will Share With Class
  • Lossless Compression - a data compression algorithm that allows the original data to be perfectly reconstructed from the compressed data.
  • Lossy Compression - (or irreversible compression) a data compression method that uses inexact approximations, discarding some data to represent the content. Most commonly seen in image formats like .jpg
  • Lossy Text Compression
  • File Formats and Compression Activity
  • Finish Lesson 5


  • Computer Files- BMP, WAV, PNG, MP3, GIF, ZIP, PSD, JPG, RAW


Day 16 Unit 2 Test Day!

Today's Agenda-

  • Unit 2 Test- 30 Points
  • Turn-In Journal




Continue to Unit 3- Intro to Programming