1. Calculation and measurement: One of the most widely used aspects of mathematics in schools is calculation and measurement. Whether in math class or other subjects, students need to carry out various calculations and measurements, such as solving numerical operations, measuring length, weight and temperature.

2. Prediction and modeling: Mathematics can help students predict and build models. Students can infer future trends or predict the probability of certain events through mathematical knowledge, such as probability problems in statistics, functional relationships in algebra and so on.

3. Logic and reasoning: Mathematics can also help students develop logical thinking and reasoning ability in school. By solving mathematical problems, students can exercise their logical thinking and reasoning ability and cultivate a rigorous way of thinking, which is very beneficial to other disciplines and problems in life.

4. Data analysis and statistics: Mathematics is also widely used in data analysis and statistics of schools. Students learn how to collect, organize and analyze data through mathematical methods, understand how to extract useful information from data and draw conclusions from it.

In a word, mathematics is widely used in schools. Whether in mathematics classes or other subjects, students need to use mathematical knowledge to solve problems and understand the world.