AP Computer Science Principles

Click here to apply for AP® Computer Science Principles with Ms. Rebekah!

Applications are checked weekly in the spring and summer. You will receive a follow-up message with the status of your application before you pay for the course.

"When I first started this course, I felt that I would fail computer science because I had no basic knowledge whatsoever. But here I am now, understanding what enables this review form to be posted, and actually knowing what http means!"

— Yeeun K. (AP® CSP student, 2021-2022 school year)

Course Description (Curriculum adapted from Code.org):

The curriculum from Code.org is designed to prepare students for the AP® Computer Science Principles Exam and to serve as a foundation for future studies in computer science. It is divided into 10 units:

• Digital Information
• The Internet
• Intro. to App Design
• Variables, Conditionals, and Functions
• Data
• Lists, Loops and Traversals
• Parameters, Return, and Libraries
• Cybersecurity and Global Impacts
• The Create Performance Task
• Algorithms

In this course, students will:

• Build problem-solving skills through the use of computational widgets such as the pixelation and text compression widgets
• Rapidly develop shareable web applications using App Lab: Code.org's online, block to text, JavaScript programming environment
• Experience a blend of online, guided tutorials and open-ended, project-based learning
• Learn from a diverse cast of role models, from well-known tech celebrities to social innovators, who are using CS to tackle society's problems
• Engage in constructing their own understanding of computer science concepts through inquiry-based instructional strategies
• Prepare for the AP® CS Principles exam, both the in-person test day and the Create Performance Task (a portfolio submission)

Students will primarily interact with Ms. Rebekah, their classmates, and the teacher's assistants (TAs) through Google Classroom, Discord, the weekly Zoom Office Hour, and email.

• On Google Classroom, students will participate in discussions, submit projects, post resources, upload homework, and complete assessments that are organized into weekly work folders. There will also be some partner coding and group projects during the year. 
• This course also features TA small groups who can provide another point of contact and near-peer support for the course. The TAs are all high school and college students from former years who have aced the course as well as the AP exam.
• The TA-run Discord Channel is another optional way for students to build connections, get help with homework, brainstorm project ideas, study for tests, and more!
• There will be optional weekly Zoom Computer Science Office Hours on Mondays from 4-5 pm ET. This is a great opportunity for students to ask and answer questions, collaborate with each other and learn of course updates if needed. This will be recorded and posted for students unable to attend. 

Student Samples

To give prospective students a better idea of what they will accomplish in this course, here is a compilation of projects by former students:

     

Who Should Apply

Anyone who is interested in computer science, technological innovations, creative problem solving, logical thinking, and learning! This course introduces high school students to the foundational concepts of computer science and challenges them to explore how computing and technology can impact the world. All hard-working 9 - 12 grade students can succeed in this course, regardless of prior coding experience (or lack thereof!). **Students who are not interested in the AP CSP exam are still welcome to take this course omitting the exam prep.

Students who are primarily interested in coding in Java (or majoring in computer science in college) should consider AP® CSA . Here is a brief summary of the difference between CSA and CSP. Typically, I recommend that students take AP CSP and then AP CSA, if their schedules allow. While AP CSA does not require former coding experience, students who have AP CSP first tend to do better.

Prerequisites

The College Board recommends that students have a grade of B or better in Algebra I before taking AP® Computer Science Principles. Prospective students should be ready to commit up to 10 hours a week for independent coursework.

Required Texts

• This course uses Code.org's AP® CS Principles curriculum which is freely available on their website
• We will read Blown to Bits, second edition,(available for free online)
• An optional test prep book will be announced in the Spring (typically Barron's or The Princeton Review)

Technical Requirements

• Computer with audio and high-speed internet access
• A Gmail account

Grading Approach

The goal of this course is to help all students learn the classwork well enough to earn an A! Students are therefore graded based on what they know and what they can do rather than on their timeliness or compliance  (following Grading for Equity principles). Tests are meant to assess as well as prepare students for the AP^® exam. There are also project grades which comprise a large percentage of the overall course grade. The teachers will make all possible accommodations to help every student succeed, including providing opportunities for test corrections and work revisions without penalties. Additionally, the grades of all students who score a 5 on the AP® exam will be updated to an A+.

Course Dates

• There will be optional weekly Zoom Computer Science Office Hours on Mondays from 4-5 pm ET. This is a great opportunity for students to ask and answer questions, collaborate with each other and learn of course updates if needed. This will be recorded and posted for students unable to attend. 

Ms. Rebekah will post weekly work folders each Monday that will be due the following Monday. 

This course will run approximately from September 8, 2025—May 15, 2026 (depending on the date of the AP exam), except for the following breaks:

• Thanksgiving break (November 24 - December 1)
• Winter break (December 12 - January 5)
• Spring break (March 30 - April 6)

If students need additional time off or flexibility with deadlines, they should email Ms. Rebekah to plan ahead.

Course Fee

• Regular Tuition: $900
• Audit: $400  **this option allows you access to all course resources except graded feedback, a transcript, and a TA small group

Ms. Rebekah Lang: This will be Ms. Rebekah's ninth year teaching this course for PA Homeschoolers. 

In 2023-2024, Ms. Rebekah has received a CSTA New Jersey Teaching Excellence Award. In 2023, she also received an Educator Affiliate Award for NCWIT's Aspirations in Computing Program for her work with girls in computer science. For 6 summers, Ms. Rebekah has scored the Create Performance Task for AP CSP exam as reader. The training and scoring of thousands of exams has given her great insights on how to best prepare the class for the performance task portion of the exam. Following her master's degree in Curriculum and Instruction from Western Governors University, Ms. Rebekah has earned multiple educator certificates from various tech companies and from Penn State University Lehigh Valley for teaching English Language Learners (ELLs). She holds PA and NJ teaching certifications in computer science as well as a broad variety of other subjects. She has participated in Cooperative Learning Research for Computer Science Principles, served as a CS for All Teachers Ambassador, and is currently a CS Awesome PD Facilitator. 

In addition to teaching AP® Computer Science Principles, Ms. Rebekah is the instructor for AP® Computer Science A for PA Homeschoolers. In addition to her online teaching, Ms. Rebekah serves as the Computer Science Innovation Specialist for the New Jersey Department of Education. Ms. Rebekah is a lifelong educator and learner who has taught middle and high school students—public, charter, private, and homeschooled—for the past 16 years. Having been homeschooled herself, Ms. Rebekah understands how diverse, independent, intelligent, and engaged homeschooled students are. She is excited to continue to work with such talented students and aid them in their studies of computer science!