# MU Psychology Study Finds Key Early Skills for Later Math Learning

## Long-term study shows students must know about numbers at beginning of first grade

July 11th, 2011

COLUMBIA, Mo. – Psychologists at the University of Missouri have identified the beginning of first-grade math skills that teachers and parents should target to effectively improve children’s later math learning.

A long-term psychology study indicates that beginning first-graders who understand numbers, the quantities those numbers represent, and low-level arithmetic will have better success in learning mathematics through the end of fifth-grade, and other studies suggest throughout the rest of their lives.

“Math is critical for success in many fields, and the United States is not doing a great job of teaching math,” said David Geary, Curators Professor of Psychological Sciences. “Once students fall behind, it’s almost impossible to get them back on track. We wanted to identify the beginning of school knowledge needed to learn math over the next five years. We found that understanding numbers and quantity is a necessary foundation for success as the student progresses to more complex math topics. In order to improve basic instruction, we have to know what to instruct. These are the factors that make a difference in the first-grade above and beyond intelligence and other abilities.”

Geary and the team of researchers have been monitoring a group of 177 elementary students from 12 different elementary schools since kindergarten, with the intention of following them through their first algebra class in the 10^{th} grade. For this study, the researchers factored out intelligence, working memory and other abilities to determine the most critical beginning-of-school math skills.

“This study reinforces the idea that math knowledge is incremental, and without a good foundation, a student won’t do well because the math gets more complex,” Geary said. “The kids that can go back and forth easily and quickly in translating numerals, the number five, for example, into quantities and in breaking complex problems into smaller parts had a very good head start.”

The researchers also found that first-graders who understood the number line and how to place numbers on the line and who knew some basic facts showed faster growth in math skills than their counterparts during the next five years. However, the researchers found that these early math skills had no impact on future reading ability.

Geary says that while other studies have focused on reading success, this study is the first to examine how the basic math skills children bring to first-grade affects their mathematics learning throughout their entire elementary school years. Future studies will focus on fractions and algebra.

The paper, “Cognitive Predictors of Achievement Growth in Mathematics: A Five Year Longitudinal Study,” will be published in the journal *Developmental Psychology*.