The first recommendation is "Math Composition Exercise for Grade Four". Based on 4A-level learning content, this book systematically sorts out mathematics learning content, such as geometry, algebra, proportion and probability, numerical value and quantity. Every content in the book has interesting questions, which makes children more involved and easier to understand in the process of solving problems. In addition, the exercises in the book are also equipped with a large number of problem-solving ideas and skills, so that children can deeply understand the concept of mathematics from the root, and make learning more effective.

Another book is "Improving the Comprehensive Ability of Mathematics in Grade Four", which focuses on the cultivation of comprehensive ability, comprehensively sorts out the main knowledge fields of 4A level, helps children to further improve their mathematics level on the basis of being familiar with existing knowledge, integrates mathematics into life, comprehensively develops their comprehensive ability of mathematics, and at the same time enables children to learn to analyze and solve problems in the process of solving problems.

Finally, the recommended book is Mathematics Diagnosis and Evaluation for Grade Four, which takes the learning content of Grade 4A as the core, makes a phased diagnosis of children's learning objects in a more comprehensive way, finds out the shortcomings in learning in time, helps children solve problems in time and effectively, and systematically improves their academic performance.

In a word, the above are three recommended math courses for the fourth grade. Through these math courses, children can learn math more comprehensively and deeply, and get better learning results.