So why post on them again? To show that Juf Ingrid really is a schoolteacher, and that her students might suffer if she were dismissed because of her indiscretion. Take a look at the photo of her first-graders in action from this post on a Dutch blog. So far as I understand the caption, the kids arrived at school to find Juf Ingrid holding the bucket against the wall. She had caught a bird that had been flying around the hallway. When her arm got tired, the kids got a stool and took over. Meanwhile, they were debating what to do. They couldn't find a cage. Eventually, they decided to release the bird so that they could recapture it and set it free outside.
But when they removed the bucket, nothing was there. As the caption says, the kids had forgotten that it was April 1.
As the principal of the school said, posing for the pictures wasn't a hanging offense.