By mid-course, your Math Journal stops being only a diary and becomes something rarer: evidence. The person who wrote your week-one entries no longer quite exists — and because that person wrote honestly, you can prove it. Showing growth means putting your week-one self and your now-self side by side and letting the difference speak.
Growth is a claim plus evidence
“I got better at math” is a claim, worth what any claim is worth: nothing yet. Growth writing pairs every claim with evidence from your own record — and the strongest evidence is the gap between two entries:
In the first week I wrote that the derivative was a recipe I ran and hoped about — differentiate, set to zero, pray. Last week in The Packaging Brief I caught myself sketching the derivative before the function, because the sign chart told me where the volume could possibly peak before I computed a single value. The rule stopped being a ritual and became a thing I ask questions with.
The claim is the derivative became a tool. The evidence is two moments, months apart, both on the record — and nobody can argue with that, including the part of you that suspects you have not changed. It is the standard How Marks Work applies everywhere: what can you point to?
How to cite yourself
Treat your earlier entries the way an essay treats sources:
- Date it — “In my second-week entry…” — the distance matters.
- Quote a phrase, not a page. Your words from the time carry more truth than your summary of them now. “Obvious is apparently still not a reason”, from Your First Entry, says more than “I used to skip justification.”
- Then show the now. A recent moment, just as specific, that the earlier self could not have managed — or would not have noticed.
Growth is not always getting more answers right
Some growth is speed traded for depth. Some is a new noticing: a velocity graph dipping below its axis and you hearing the walker turn around, a cross product whose direction you checked with your right hand before trusting the algebra. New noticing is growth, and your early entries prove it was not always there.