The first volume of grade four: Unit 8 "Strategy to solve problems" arranges information in an orderly way by list method to solve practical problems.
The first volume of grade four: Unit 1 1 "Problem-solving strategy" solves more complicated problems by drawing and other methods.
The first volume of grade five: Unit 6 "Problem-solving Strategies" solves practical problems by enumerating.
The fifth grade book: Unit 9 Problem-solving Strategies Solve simple practical problems with reverse strategies.
The first volume of grade six: Unit 6 "Problem-solving Strategy" solves practical problems with alternative methods.
Book 6, Grade 6: Unit 6 "Problem-solving Strategies" solves practical problems through transformation methods.