Original title: When Do Mathematics Teachers Teach Statistics? A Study of the Enacted Curriculum in Grades 3–9
Robert C Schoen, Joselyn Perez, Cynthia U. Norris, Ms Shelby Louise McCrackin +2 · September 2026
Schools want kids to learn statistics, but we do not know how much time teachers actually spend teaching it. Researchers investigated this gap by surveying mathematics teachers. They asked teachers how they spend their instructional days, what they feel prepared to teach, and what their attitudes are. The study found that teachers teach statistics for only 5–12 days each year, usually saving it for the end of the school year. This is about half of what the official curriculum expects. Furthermore, teachers who hold better attitudes toward the subject teach it more. In contrast, training programs and years of experience do not make teachers spend more time on it. The official school plans do not match what happens in classrooms.
You plan to teach a friend to bake bread, thinking you'll practice two hours every week. But by the end of the month you've spent only about half that time, and every session happened on Sunday evenings when you were exhausted. Here, the planned two hours are the official teaching plan, the actual baking time is the statistics lessons, and the Sunday-evening exhaustion stands in for teachers' attitudes, which the study found are what really controls how much statistics gets taught.
Students in grades 3–9 receive about half the statistics instruction the official curriculum promises, and what they do get is squeezed into the end of the school year. That matters because data literacy is now a core math skill, yet many students may not build it. The study also suggests that changing teachers' attitudes about statistics could increase instructional time more than adding training or experience.
The abstract is based on self-reports from teachers, not classroom observations, so actual time may differ. It does not establish why attitudes matter or whether the gap affects student learning. It also covers only grades 3–9 in the surveyed schools and gives no detail on how the intended curriculum was defined or measured.
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When Do Mathematics Teachers Teach Statistics? A Study of the Enacted Curriculum in Grades 3–9 — Robert C Schoen, Joselyn Perez, Cynthia U. Norris et al. — EdArXiv — doi:10.35542/osf.io/4zbjy_v1
Abstract licence: CC BY
Explanation generated by Synthesis from the abstract — it is not the original paper. This is a preprint, so it hasn't necessarily been peer reviewed.