Adjust the size of the class. Especially for elementary school lower grades and low-income students there is evidence that performance will improve as class size decreases. However, if school expenses decrease and the enrollment rate rises, it will be difficult to maintain small classes. For example, in Nevada, the ratio of teacher to student has increased from 18.3 in the academic year of 2008 to 20.6 in 2008. The number of K - 12 students this year increased by 800,000 more than in 2008, but the number of teachers and other school workers decreased by 297,000.
In recent years, a nationwide campaign to reduce the scale of public school classes has been started nationwide. In the late 1990s, when the treasury was full, it was a political popularity to reduce the size of the class in lower grades as a way to use dollars for education that would satisfy the voters. At present, more than half of the provinces are implementing a public-school class size reduction program. Reducing the number of classes is an attractive and visible way to show that state and public schools are improving the quality of education. The smaller the class, the more teachers can spend less time on class than the classroom management, so the smaller the class, the more popular is the teacher union and administrator. Many studies have shown that the reduction in class size improves student performance, reduces disciplinary problems, and improves teacher morale and retention. However, many researchers have questioned whether costs outweigh their profits
Researchers and policy makers often believe that teacher turnover rates can adversely affect student performance, but recent evidence raises questions about this hypothesis. In this study, a grade level shift and two fixed effects models were used to estimate the influence of teacher mobility on fourth and fifth grade students in more than 600,000 New York City observations over a five year observation We used our own identification strategy. As a result, students in the upper grade had lower ELA and math scores, and this effect was particularly strong in schools with low grades and black students. In addition, the results show that in addition to changing teacher quality composition, there is also catastrophic impact on sales.