Attributions & Licenses

Marble Skill Taxonomy (os-taxonomy)

TechTotz's adaptive learning engine is built on the Marble Skill Taxonomy.

Contains information from the Marble os-taxonomy (github.com/withmarbleapp/os-taxonomy), made available under the Open Database License (ODbL) v1.0; taxonomy content licensed CC BY-SA 4.0.

• Database rights — Open Database License (ODbL) v1.0 (terms).
• Database contents — Creative Commons Attribution-ShareAlike 4.0 (CC BY-SA 4.0).

Per-child lessons and quizzes generated by TechTotz are our own work and incorporate topic descriptions and evidence criteria from the taxonomy under the licenses above.