So the London Zoo trip was a success! I'm so happy to be writing that, and grateful to the teachers for taking the time to make sure it worked out OK.
It was a lovely sunny day, although very VERY chilly, and Sasha was in good spirits in the morning - she was actually excited to be carrying her lunch in her (Dora) Backpack. I didn't hang around to see the bus off, as I thought that may unsettle Sasha, but a good friend sent me the following pic:
That's Sasha at the top left in the front!! I didn't ask the teachers to sit her there, but I'm glad they realised that was a good idea. She got on the bus happily and sat with a friend and I'm sure it made a difference to how the day went.