Learning to solve problems in elementary school (1950)

For primary school students, the solution of arithmetic problems is one of the best ways to develop logical thinking and learn to express your thoughts accurately and briefly. However, independently, the child can hardly master the basic mathematical rules and patterns that need to be taken into account while at the time of the answer to the task. That is why the help of an adult is required: a parent, teacher, teacher.
What is the best way to explain ways to children to solve various mathematical problems? How to fix the knowledge gained and make sure that they have no gaps? Finally, how to teach a child in the future without any help to solve problems?
The most effective methods based on many years of experience of school teachers are collected in this book. It will come in handy both primary school teachers and parents who are engaged with children on their own