Building a big data solution? Here’s why it’s important to consult users first.

K-12 education in the U.S. ranks in the middle of the pack worldwide, but one startup, AltSchool, is trying to change that using big data.

The company‘s aim is to develop big data and analytics methods that can provide teachers with new insights into how different students in their classes learn—and how to facilitate an optimum learning situation for every child.

As part of this strategy, the company uses cameras to document students’ actions like facial expressions, fidgeting, and social interactions. The goal is to aggregate data from video and audio streams into a central repository that can help teachers better assess their students’ learning needs and develop more effective teaching techniques.

Right now, AltSchool’s technology is only in place at six private school campuses operated by the company in Silicon Valley and New York. However, according to an Education Week article, they could be more widely available by the 2018-19 school year. When it comes to implementing analytics solutions in the larger education community, companies like AltSchool could hit roadblocks.

Because business cases work only when everyone sees value.

To create value, tech companies need to demonstrate benefits to potential users, which means teachers in AltSchool’s case.

To start, educators are not necessarily technologists. They’re likely to be “people” people who are dedicated to teaching. Through the years, they have developed intuitive methods for how to reach students and facilitate learning. Some may even have an aversion to technology.

Second, teachers have to work with large, diverse groups of students. One solution won’t work for everyone in the classroom. “Half of my time is spent controlling the room for disruptive behavior,” acknowledged one K-12 teacher who is a personal friend. “The other half is spent trying to develop curriculum that is flexible enough to be adapted to the needs of every student at the same time that you are trying to teach 36 students at once.