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Carshalton High School for Girls

Carshalton High School for Girls

Carshalton High School for Girls is a highly successful school, judged by Ofsted in November 2017 as ‘Good’ in all categories.

Computer Science in the Sixth Form

A Level Computer Science

What is the course about?

Computer Science specification is fit for this. This course is built on strong foundations to deliver a flexible, accessible and rigorous qualification. It focuses on the knowledge, understanding and skills students need to progress to higher education or thrive in the workplace. Computer Science is about computation and how computers can be used to solve problems. There is a great emphasis on programming using the Python programming language, and on the development of logical problem-solving techniques. 

What sort of work will I be doing?

You will learn fundamentals of programming including the concept of data type, including primitive data types and complex data structures, following and writing algorithms, methods of capturing, selecting, exchanging and managing data to produce information for a particular purpose.  In addition, students will develop the following skills; problem solving, design, write and test programs to either a specification or to solve a problem, articulate how a program works, arguing for its correctness and efficiency using logical reasoning, test data, and user feedback, use abstraction effectively and to appropriately structure programs into modular parts with clear well documented interfaces to model selected aspects of the external world in a program and apply computing-related mathematics. 

How will I be assessed?

Paper 1

This paper tests a student's ability to program as well as their theoretical knowledge of Computer Science


On-screen exam: 2 hours 30 minutes

40% of A-level


Students answer a series of short questions and write/adapt/extend programs in an Electronic Answer Document provided by us.

Paper 2

This paper tests a student's ability to answer questions from subject content 


Written exam: 2 hours 30 minutes

40% of A-level


Compulsory short-answer and extended-answer questions.

Non-exam assessment

The non-exam assessment assesses student's ability to use the knowledge and skills gained through the course to solve a practical problem. Students will be expected to follow a systematic approach to problem solving


75 marks

20% of A-level

What qualifications are needed to take this course?

Students will be expected to have studied Computer Science at GCSE level and gained a minimum grade 6.  (If you do not have a Computer Science qualification at GCSE level, then you will be assessed overall on your academic ability and suitability for the course). 

What extra work can I do?

There are numerous online courses like Code Academy and Khan Academy to improve your computer programming knowledge and skills.

And finally…

Computer Science is an extremely useful A Level leading into a wide variety of computer-based disciplines plus technologically rich subjects such as engineering or science, whilst also ensuring a pathway into employment in industry involving computing or problem-solving skills.