This website was developed by Canadian educator Callum Makkai. While teaching abroad, he came into contact with teachers of many different backgrounds. He realized that oftentimes rubric scores are not properly converted into percent grades.

Roobrix.com is a web-based solution that provides a convenient way to make these conversions. Callum's hope is that this service will improve rubric-based assessment in schools all over the world.

Callum Makkai has taught internationally in Canada, Japan, China, and Thailand. At present he is pursuing doctoral studies at the University of Pennsylvania.