The pages are from The Royal Canadian Mounted Police by Marc Tetro, first published in 1994 by Scholastic Canada, for kids 5-8 years old. The tweet generated a fair bit of interest.
When I retweeted it, I tagged Scholastic:
Earlier today (Sep 25), Scholastic Canada replied:
I don't think there are any mechanisms by which a teacher or librarian would know that Scholastic stopped publishing this book because of the issues with its content. Clearly, it is still in at least one classroom in Canada.
I looked in WorldCat to see how many libraries have it. Given the issues in it, it shouldn't be in a public or school library. It does have use, however, in a university library. Unfortunately, it is in several public and school district libraries. If you've got it in your library, deselect it.