Abstract
This paper presents a universally-designed web-based Workspace that facilitates the manipulation of elementary level mathematics: arithmetic and algebra. The Workspace features a multi-layer design that supports diversity along different dimensions: students with different degrees of visual acuity (from sighted to blind); different levels of proficiency in the subject; and different interaction modes. The universally designed workspace meant to be used in mainstream schools, where an increasing level of inclusion of students with visual impairments has been taking place recently.