When 9-year-old Lina started using a math app at her school in Utrecht, she didn’t just get better at multiplication — she began to enjoy it. Her class was part of a Dutch study tracking nearly 8,000 elementary students who used adaptive learning tools between 2014 and 2017. Over three years, researchers from Radboud University found that kids like Lina made faster progress in arithmetic when their lessons adjusted automatically to their skill level. If they answered correctly, the next problem got harder. If they struggled, it got easier. This personalized approach helped them stay challenged but not overwhelmed.
The findings matter because many educators have worried that digital tools might replace teachers or deliver lower-quality learning. But this long-term study, published in Learning and Instruction, shows that AI-supported math tools don’t weaken education — they strengthen it, especially where help is needed most. Unlike earlier research focused on short trials, this one followed real classrooms over years, offering stronger evidence about how technology fits into daily learning.
On average, students using the system improved more than those in traditional classes. The gains were modest but consistent, and most noticeable in large schools and those serving communities with fewer resources. In these settings, student abilities often vary widely, making it hard for one teacher to meet everyone’s needs. With adaptive software, each child could work at their own pace while the teacher focused on guiding, not just correcting worksheets.
Still, the tool didn’t replace the teacher — it supported them. Teachers set the goals, chose what to teach, and watched over how students used the system. While the AI responded only to test scores and answers, the teacher saw body language, frustration, and flashes of insight no algorithm can detect. As Susanne de Mooij, one of the lead researchers, puts it: “A teacher cannot adapt the lesson content to 30 students at the same time. But with a tool like this, you can improve students’ math skills while also reducing a teacher’s workload.”
Today, more than half of Dutch elementary schools use some form of adaptive learning software. The results suggest that when thoughtfully guided by skilled teachers, AI can help close gaps in learning — not by taking over, but by giving every child a path that fits their pace.