They had to learn...

 The Artists - The...

 In School

 So Sorry

 I've Been Th...

 A School Scene - ...

 The Portrait Painter

 Little Scholar

 Tiny Folks First ...

 And Then, The Lov...

 Cats at School

 Just A Line!

 Cats In Weighing ...

 Schoolroom Panorama

 Waving Blue Cat

 Cat Writing

 When Plates are C...

 Christmas Ball at...

 Cat at Work