This, oddly, is one of my favorite memories: we’re in her tiny room, doing geometry homework. She’s at her pull-down desk, and I’m on one of the hard built-in beds. We do the proofs separately, and then compare. Usually we’ve both gotten it.
It was so immensely satisfying, working out those proofs. You began at a given point, remembered the theorems, and slowly, carefully, logically, figured it out.
And the best part was, because you used a compass, my drawings looked nearly as good as hers.
Happy birthday, to my friend of the longest years (circumlocution required, as she’s not my friend of the oldest years!).