Parental Involvement is key to a child’s success— in and out of school.

There’s no question that a great teacher can make a huge difference in a student’s achievement, and we need to recruit, train and reward more such teachers. But here’s what some new studies are also showing: We need better parents. Parents more focused on their children’s education can also make a huge difference in a student’s achievement.

A recent PISA study (Program for International Student Assessment) revealed that “students whose parents reported that they had read a book with their child ‘every day or almost every day’ or ‘once or twice a week’ during the first year of primary school have markedly higher scores than students whose parents reported that they had read a book with their child ‘never or almost never’ or only ‘once or twice a month.’ On average, the score difference is 25 points, the equivalent of well over half a school year.”

The PISA study noted, “on average, the score point difference in reading that is associated with parental involvement is largest when parents read a book with their child, when they talk about things they have done during the day, and when they tell stories to their children.” The score point difference is smallest when parental involvement takes the form of simply playing with their children.

Parent involvement can take many forms, but only a few of them relate to higher student performance. A recent study by the National School Boards Association’s Center for Public Education found that parental actions that support children’s learning at home are most likely to have an impact on academic achievement at school. “The study found that getting parents involved with their children’s learning at home is a more powerful driver of achievement than parents attending P.T.A. and school board meetings, volunteering in classrooms, participating in fund-raising, and showing up at back-to-school nights.”

And let there be no doubt: better parenting make every teacher more effective.