Monitor and improve your class environment for optimum outcomes

Learnometer is produced by Gratnells in association with Professor Stephen Heppell and his research team

“Our research, and others’, confirms that poor light levels, the wrong temperatures, inappropriate sound volumes and rhythms, humidity, air pollution, Co2, and air pressure can all impair learning. Our Learnometer research tool automatically samples your classroom environment, and makes suggestions through a unique algorithm as to what might be changed to allow students to learn and perform at their best.”

Professor Stephen Heppell


Fine Dust (PM2.5)

Micro-particulates can travel into children’s lungs, triggering health problems that also impact on attendance and performance.


Exposure to excessive indoor carbon dioxide will impair learning, engagement and performance. The damaging levels are surprisingly low.

Chemicals (TVOCs)

Beyond the impact on wellbeing, research confirms that airborne pollution significantly damages learners academic progress.


There is an optimal temperature range for learning. Outside that range performance suffers immediately.


Similar concerns to temperature, but also bringing other health risks like toxic mould spores. Dehydration also damages cognitive performance.

Ambient Light (Lux)

Children learn less well when light levels are low, and behaviour also suffers. There is an equity issue too, when light levels are uneven across a room.

Ambient Noise (dBA)

Noisy rooms obstruct children’s ability to concentrate and perform, wherever they are.

Gratnells Learnometer will constantly monitor your classroom conditions so you can create the optimal learning environment