This linkup is a great resource if you are looking to expand your class library or if you are wanting new ideas for books that you already have. The math text I would like to share is probably already in your library. It's Ten Black Dots by Donald Crews.
I usually use this book during the first week or two of school with my first graders. Some years the students' illustrations are used as stand alone artwork. Some years I put them all together into a class book.
For more math mentor text recommendations and activities, be sure to check out Collaboration Cuties. Thanks for reading and have a great week.