The topic Algebra - Combinatorics is an important, basic and fundamental topic in the Math 10 textbook, volume 1, the book series Connecting knowledge to life. Algebra - Combinatorics not only has many applications in real life but also has close relationships in other subjects. Therefore, when teaching Algebra - Combinatorics, teachers and students encounter many difficulties and the need to understand the relationships between Mathematics and practice is not satisfied.To overcome the above situation, it is necessary to have measures to teach algebra - combinatorics content in grade 10 in the direction of developing mathematical modeling capacity for students, helping students know how to apply mathematical knowledge flexibly. activities to solve practical problems.