I hope you enjoy this little freebie for your Math Tubs or Stations. I use these Math Mats to give my students hand on practice with the concept of 2 more and 2 less than a number. I give my students a work mat, recording sheet, and a bowl full of small objects (buttons, decorative tiles, rhinestone jewels, etc.). Students use the objects to build a set matching the number in the middle of the mat. Then they build a set with two less objects, and two more objects. Enjoy!