Here is the full list of all 19 Keyhole Spy: Teachers achievements.
Take a good look at Laura
Meet Laura
Take a good look at Charlotte
Meet Charlotte
Take a good look at Clara
Meet Clara
Take a good look at Victoria
Collect 100 glasses
Collect 100 erasers
Collect 100 globes
Collect 100 pencils
Meet Victoria
Take a good look at Eleanor
Collect 100 textbooks
Meet Eleanor
Take a good look at Jessica
Meet Jessica
Take a good look at Gina
Meet Gina