There are a lot of different theories out there on what works and what doesn’t in education. The infographic below showcases the results of a study that looked at a number of different items and if they negatively or positively affected student achievement. The scope of these projects is rather huge – over 50,000 studies including over 240 million students! While the research is based on the work of one individual and his team, the 7 most positive and negative ways to improve student achievement are quite interesting. Read on to find out more.