Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
In my opinion they are supposed to know what a triangle is or at the very least to be able to figure it out.
Neither it elaborates what a triangle is, what numbers are, and many other primary school things.