P. found the last lesson helpful, as it gave a preview of time, which was taught in class.
Not a full lesson this time, due to family illness, so I sent two stamps for her to investigate:
The goal here was to make the link between o'clock in English and die Glocke, as the oldest recorded clock in the UK, in Salisbury Cathedral (below,rt) , did not have a face, but just a bell, so two hits on the bell was two o'clock.
Next stamp, a harder one, was;
P. worked this out, with help from the internet. Building on Freiheit, we considered the similarity between that and Menschheit, and added Schönheit and Wahrheit. All feminine, so we added die Arbeit and die Geschwindigkeit, also feminine.
So, why der with a feminine word? The answer is that this is the way the Germans say of or to with a feminine word. As a learner, I found this one of the trickiest things to learn in German, as it is so clearly counter-intuitive. I didn't mention the word "case" and won't until I'm sure that the word's function in this context is clearly understood. Presenting all cases at once, and expecting people to calculate between them like a kind of talking computer seems to me to make learning German more difficult. Building up to this through an understanding of the ways they help us to say things in German seems a better way, but this remains under investigation.