# Where Does the Training Error Come From After We Remove the Steps?

## Post copy

After removing the written steps, where does training error come from? Work through one marbles problem: calculate answer loss, mark remaining targets, and see how teacher states add supervision.

## Attachment and alt text

Image: `assets/03/cover.en.png`

Alt text: Three supervision methods: teacher-state targets, a curriculum removing prefixes A, B, and C, and alignment of teacher and student pre-answer states.

![Three supervision methods: teacher-state targets, a curriculum removing prefixes A, B, and C, and alignment of teacher and student pre-answer states.](../assets/03/cover.en.png)