The "barrel" effect refers to the amount of water contained in a barrel with uneven bottle mouth, not the longest wooden board on the barrel, but the shortest wooden board on the barrel. Children's comprehensive academic performance is like a big barrel, and every academic performance is an indispensable plank that constitutes this big barrel. The stable formation of children's good academic performance cannot rely on the outstanding achievements of a certain subject, but should rely on its overall situation, especially some weak links. Therefore, when children are found to have shortcomings in certain subjects, they should be reminded to spend more time on this subject in time, so as to "learn from each other's strengths". 2. Hawthorne effect The Hawthorne factory in the suburb of Chicago, USA, is a factory that manufactures telephone exchanges. It has perfect recreational facilities, medical care system and pension system, but the workers are still indignant and the production situation is not ideal. Later, psychologists specially conducted an experiment on it, that is, in two years, experts had more than 20 thousand individual conversations with workers, stipulating that workers should patiently listen to their opinions and dissatisfaction with the factory during the conversation. This talk experiment has received unexpected results: the output value of Hawthorne factory has greatly increased. In the process of learning and growing up, children will inevitably have confusion or dissatisfaction, but they can't fully express it. As a mother or educator, we should try our best to find time to have a heart-to-heart talk with our children, and in the process of talking, we should try our best to patiently guide our children to talk about their confusion in life and study and their dissatisfaction with their parents, schools, teachers and classmates.

After "talking", children will have a sense of satisfaction and feel relaxed and relaxed. In this way, they will work harder in their studies and be more confident in their lives!