Revision by number for IGCSE OXFORD AQA Biology 9201 Learning by numbers can make studying easier and more effective, especially for students whose first language is not English. Numbering ideas breaks the information into small, clear pieces that are easy to follow. It helps students see the logical order of ideas, making it simpler to understand how one fact leads to another. This method also improves memory because the brain naturally likes sequences and steps. When information is organised in a numbered sequence, students can track ideas more easily, spot patterns, and review faster. Overall, numbering helps students focus, understand better, and build strong connections between new concepts.