Choosing the Right IB Subjects for Mechanical Engineering

Choosing the Right IB Subjects for Mechanical Engineering: A Guide

Of course, one of the major decisions you'll ever make as an International Baccalaureate student, if you want to consider a career in mechanical engineering, is which subjects to study. While choosing between a multiple choice and a true/false question may not be critical, choosing a combination of suitable subjects to prepare you for the rigorous world of engineering can be less daunting if you know exactly what to look for.

Here’s a breakdown of the most relevant IB subjects for mechanical engineering and how each of them will benefit you, explained in simple terms.

1. Mathematics (Higher Level or Standard Level)

Mathematics is probably the most essential subject for mechanical engineering. It forms the backbone of everything you'll do in this field, from understanding forces and motion to designing complex systems. In the IB, you’ll have the option to take either Mathematics: Analysis and Approaches (which is more theoretical) or Mathematics: Applications and Interpretation (which is more focused on real-world applications).

Why Mathematics is Important:

• Problem Solving Skills: Engineering means solving problems, and maths is the place where the gears of logic thinking and problem-solving techniques are inculcated.
• Understanding Physical Concepts: Mechanisms are things that move, interact, and work. The reason mechanical engineers need maths is to understand these concepts; it teaches models.
• Further Studies: Most institutions offering mechanical engineering programs will expect a good foundation in maths, especially if you are keen on the best engineering colleges.

For maths, the HL is a good idea if you feel confident about maths since you get to cover much more in greater detail. You would therefore arrive at university with a head start. On the other hand, if maths isn't one of your strong subjects, that does not matter - you will be fine with the SL as long as you feel comfortable with the basics.

2. Physics (Higher Level)

Physics is another key subject for anyone considering mechanical engineering. The field relies heavily on an understanding of forces, energy, mechanics, thermodynamics, and materials—topics that are all covered in depth in IB Physics.

Why Physics is Important:

• Core Engineering Principles: Concepts like motion, energy transfer, and the laws of thermodynamics are crucial in mechanical engineering, and these are thoroughly explored in IB Physics.
• Real-World Applications: The principles you learn in physics are directly applicable to real-world engineering problems, such as designing engines, machines, or structures.
• University Requirements: Like maths, many universities require a strong foundation in physics for entry into engineering courses. A solid performance in Physics HL is usually expected.

In the IB programme, it's highly recommended to take Physics at the Higher Level if you're serious about pursuing engineering. This will give you a deeper understanding of key topics and prepare you for the challenges ahead.

3. Chemistry (Standard Level or Higher Level)

Although chemistry is not as central to mechanical engineering as maths or physics, it can still be a valuable subject. Mechanical engineers often work with materials, and understanding the chemical properties of metals, plastics, and other substances can be incredibly useful.

Why Chemistry is Important:

• Materials Science: Mechanical engineers need to understand the properties of materials to design strong, durable, and efficient systems. Chemistry provides insights into how different materials behave under various conditions.
• Environmental Considerations: As sustainability becomes more important in engineering, understanding chemical processes can help you design systems that are environmentally friendly.
• Flexibility: Chemistry also keeps your options open if you decide to switch to another field of engineering later on, such as chemical or environmental engineering.

Taking Chemistry at Standard Level is usually enough for mechanical engineering, but Higher Level might be beneficial if you're particularly interested in materials science or plan to specialise in areas that involve chemistry later in your career.

4. Design Technology (Standard Level or Higher Level)

Design technology is not a typical engineering course; however, it can be very important for aspiring mechanical engineers. The creative thinking and problem-solving abilities that are so important to engineering are fostered by this discipline. Additionally, it teaches students to CAD software, which is frequently used in the engineering field.

Why Design Technology is Important:

• Hands-On Experience: This course gives you practical experience of design processes, prototyping, and utilisation of engineering tools and software.
• Creativity: Engineering is a process of inventive finding new solutions in what might be too tight of an existing solution. Training within Design Technology encourages thinking outside the box and different angles in approaching problems.
• Software Skills: CAD and other design tools are additionally helpful when entering the university since most of these skills are expected.

While not a requirement for mechanical engineering, taking Design Technology can enhance your skill set and make you more well-rounded as a future engineer.

5. Group 3 Subjects (Individuals and Societies)

Though subjects like economics, geography, or business might not seem directly related to mechanical engineering, they can still offer valuable skills. Economics or Business Management can teach you about cost management, supply chains, and project management, all of which are essential for engineers working on large projects.

Why These Subjects Might Be Useful:

• Understanding the Bigger Picture: Engineers often work within the context of larger projects and need to consider factors like cost, sustainability, and resource management. A subject like economics or business can give you insight into these areas.
• Collaboration: Engineering projects are rarely done alone. Subjects in Group 3 often require teamwork and collaborative thinking, which are key in engineering careers.

While these subjects aren't directly required for mechanical engineering, they can complement your technical knowledge by teaching you broader skills.

6. Theory of Knowledge (TOK) and Extended Essay (EE)

In the IB Diploma Programme, you are also expected to complete the Theory of Knowledge (TOK) course and write an Extended Essay (EE). These may not appear to be directly related to mechanical engineering, but they are great ways to develop your research skills that are core to every engineer, and communication and IT skills which are mandatory.

Why TOK and EE Matter:

• Research Skills: Your Extended Essay will teach you how to conduct thorough research, which is a key part of any engineering degree.
• Critical Thinking: TOK encourages you to question knowledge and think critically—qualities that are crucial when solving complex engineering problems.

If possible, consider writing your Extended Essay on a topic related to engineering or physics. This will allow you to dive deeper into a subject you’re passionate about while gaining valuable research experience.

Final Thoughts

However, when selecting your IB subjects with mechanical engineering as your intended course, your HL subjects should consist of mathematics and physics since they will serve as your subject cornerstone on which your programmes will be built upon. And although Group 3 subjects are more generalised, they will come in handy when it comes to real-life engineering situations and can help make the fruits of learning more tangible by including such subjects as chemistry or design technology. In the end, the subject choices you make should be an ideal reflection of what you are good at, enjoy doing, and of course your ultimate career plans.