Mastering Mathematics in ECG Preparatory Classes: The Key to Effective Work

Lucas Charbonnier

Hatched by Lucas Charbonnier

Dec 12, 2023

3 min read


Mastering Mathematics in ECG Preparatory Classes: The Key to Effective Work


In ECG preparatory classes, being proactive in mathematics is crucial for efficient work. However, there are certain challenges that students face, such as the lack of immediate correction for exercises given by teachers. This article aims to explore the importance of proactive work in mathematics, provide advice on effective studying, and offer insights into improving calculation skills.

The Importance of Immediate Correction:

One of the major issues with exercises given by teachers is the lack of direct correction. This means that students are dependent on the teacher's pace of correction. To overcome this, working with a manual that provides accessible and high-quality corrections can be advantageous. It allows students to have immediate access to the correct answers and learn from them.

The Role of Reflection in Exercise Completion:

For students who decide to work on exercises that will be corrected in class, it is essential to approach them with a proactive mindset. Completing exercises is not just about finding the correct answers; it is about acquiring automaticity through reflection and understanding the solution. If an exercise does not have a correction available and the teacher will provide the correction in class, it is crucial to have reflected on the exercise beforehand. Otherwise, it would be a waste of time. Students should feel free to start another exercise during the correction, revisit the missed exercise later, and seek correction from a classmate.

Balancing In-Class and At-Home Work:

In ECG preparatory classes, the work in mathematics can be divided into two facets: in-class and at-home work. It is important to allocate a certain percentage of time to each aspect. The learning of the course material should take up around 1/4 to 1/3 of the total study time. While it is necessary to learn propositions, theorems, and definitions, it is also beneficial to refer to the courses outlined in the manuals. Additionally, students should familiarize themselves with the "incontournables hors programme" (essential topics beyond the curriculum) that are often recurring in practice exams.

Mastering Calculation Skills:

To improve calculation skills, it is important to focus on both the content and the form of calculations. Simply memorizing formulas without understanding their applications is not sufficient. Instead, students should aim to associate each formula with various means of ensuring its correctness. This can include visual or geometric representations, specific examples, or alternative approaches. Relying solely on formulas from reference materials can hinder the development of problem-solving skills. Instead, students should attempt to write formulas from memory and use their verification techniques before referring to their notes. This process helps in internalizing the formulas and reducing dependency on external resources.

Tips for Effective Calculation:

To improve calculation skills, students can follow a few actionable tips:

  • 1. Practice Mental Calculation: Engaging in mental calculations helps in developing a better understanding of how expressions evolve before writing them down. Although it may initially lead to mistakes, consistent practice will lead to better retention and anticipation of calculations.
  • 2. Focus on Inequalities: When manipulating inequalities, it is advisable to work with positive numbers as much as possible. This minimizes the chances of errors. Additionally, understanding the properties of absolute values can simplify calculations and aid in solving inequalities efficiently.
  • 3. Embrace Trigonometry: A strong grasp of trigonometric formulas is highly beneficial in the early years of higher education. By practicing and internalizing these formulas, students can simplify complex calculations and solve problems with ease.


Being proactive in mathematics is essential for success in ECG preparatory classes. By understanding the importance of immediate correction, reflecting on exercises, and mastering calculation skills, students can enhance their learning experience. Remember to allocate time for both in-class and at-home work, prioritize essential concepts, and practice mental calculation and trigonometry. With these tips in mind, students can approach mathematics with confidence and achieve effective results in their studies.

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