Turn a curriculum into an interactive map of prerequisites, related ideas, and learning pathways.
Span turns a flat list of curriculum topics into a map that shows how ideas connect. Teachers can use it to plan a sequence, students can trace how one topic builds into another, and curriculum designers can spot gaps or missing links.
Browse concepts by grade and unit, then drag any topic directly onto the canvas.
Draw arrows between concepts to mark prerequisites, extensions, and related ideas.
Click a concept and ask what it builds on, leads to, or relates to - suggestions show up as ghost nodes right on the map.
See where students may be missing prerequisite connections.
Build the path you expect students to follow through a unit, then compare it with the connections they actually make.
See how what you're learning fits into the bigger picture.
Trace a concept back to what it builds on and forward to what it leads to next.
Get a quick nudge toward one concept worth connecting next, highlighted right on your map — plus a shoutout when you've added new connections since your last visit.
Concepts that have been added but never connected are flagged so they are easier to spot.
Teachers can mark what they have already taught so classwide analysis reflects the actual course sequence.
Explore a populated mock class with sample student maps before creating your own.
Preview it →Save map snapshots to your dashboard, label them, and move between dates to see how a map changes over time.