One circle, one official skill

The skill graph

This is the picture Math Academy draws for a course: a circle for each topic, and an arrow from a prerequisite to the topic that needs it. Here a topic is one BNCC skill. Prerequisites sit on the left. What they unlock sits on the right. A filled circle is a skill the student book covers in full. An open circle is not written yet. The shade is the book, not a child’s score.

Arrows are gates. The dashed support edges stay on the concept map, because a support is not a prerequisite. Drag to move. Scroll to zoom. The BNCC does not publish this graph.