


Calcularis is Constructor Tech's adaptive math training program for primary schools, SEN units, and learning centres working with students in grades 1 to 4. Developed in partnership with ETH Zurich and backed by over CHF 6 million in research funding, it is designed to support both students with dyscalculia and regular learners through individualized, multisensory learning paths. The program continuously assesses each student's learning behaviour and error patterns, automatically adjusting the learning path to suit their pace and needs. Students work through interactive exercises that use colors, shapes, animations, and 3D scenes to build numerical proficiency. Teachers and SEN coordinators access one-click progress reports, class overviews, and per-learner error analysis through the Coach dashboard, reducing the manual effort involved in tracking and differentiating instruction. Differentiating math instruction at scale is difficult in heterogeneous classrooms, particularly where some students have dyscalculia and others do not. Calcularis addresses this by running as an independent practice tool, with students working at their own level without teacher intervention, while giving educators the data they need to identify who needs additional support. Scientific studies confirm significant learning progress even for students with dyscalculia, and the program is available in German, English, French, Italian, Dutch, Norwegian, Portuguese, and Turkish.

Grafari is Constructor Tech's adaptive spelling and literacy program for primary schools, SEN units, and learning centres working with students in grades 1 to 6. Developed in partnership with ETH Zurich and backed by 15 years of research, it supports both students with LRS/dyslexia and regular learners through individualized, multisensory learning paths. The program continuously assesses each student's learning behaviour and error patterns, automatically adjusting the path for optimal progress. Students work through interactive exercises that use colors, shapes, structures, and tones to build orthographic pattern recognition. The curriculum covers over 8,000 words of essential vocabulary, aligned with the curricula of multiple federal states. Teachers and SEN coordinators access one-click progress reports, class overviews, and per-learner error analysis through the Coach dashboard, with options to manage groups and customize learning settings. Supporting students with varying literacy levels in one classroom is difficult to manage without tools that run independently and report progress clearly. Grafari addresses this by operating as a self-directed practice program that students complete three times per week without requiring teacher involvement in each session, while giving educators the data they need to track progress and adjust support. Scientific studies confirm a 32% reduction in spelling errors, and the program has been used in over 1,000 schools.



Constructor Tech is a technology platform for higher education institutions, research organizations, schools, and corporate training providers, serving 2,000+ partners and customers worldwide from its headquarters in Zurich. Part of Constructor Group, the company offers a suite of eight interconnected applications covering learning management, assessment, proctoring, live collaboration, timetabling, virtual labs, research computing, and content authoring, all built on a shared infrastructure so that data, context, and workflows stay connected across every product.