The math study in Unit 4 of the first volume of the fifth grade gave me a deeper understanding of the conversion between fractions and decimals. In Unit 4, I learned how to convert decimals into fractions and how to convert fractions into decimals. This makes me understand that decimals and fractions represent the same value although they are different in form. For example, 0.5 can be written as a fraction of 5/ 10, which means the same value.

I also learned how to compare fractions with decimals. The original method of comparison is based on their actual values, not their forms. For example, 0.5 and 1/2 are equal because they both represent the same numerical value.

The study of Unit 4 also made me understand that mathematics is a part of life. We can use mathematics in our life, such as calculating prices and distributing food. I am glad that I can learn this unit and understand different aspects of mathematics. In the future study, I will continue to study hard to better understand and apply mathematics.

Write the role of math diary:

1, writing about math diary can consolidate our knowledge of mathematics. In the process of writing a diary, we need to review and sort out the knowledge points we have learned, which is helpful to consolidate our memory and deepen our understanding of mathematical concepts and formulas.

Writing about math diary can improve our thinking ability. By analyzing and solving mathematical problems, we can exercise our logical thinking and ability to analyze problems. This way of thinking is not only helpful for math learning, but also helpful for solving problems in our daily life.

Writing about math diary can improve our interest in learning. In the process of keeping a diary, we can combine mathematics knowledge with real life and feel the practical application value of mathematics in life, thus improving our interest in mathematics learning.

4. Writing about math diary can cultivate our autonomous learning ability. By consulting materials independently, solving problems, reflecting on the learning process, we can gradually cultivate our own independent learning ability, so as to better adapt to future study and work.

Writing about math diary can also help us to establish good study habits and attitudes. By keeping a diary, we can cultivate our self-discipline and sense of responsibility, which will have a positive impact on our study and life.