Base ten blocks are my favorite math manipulatives! They can be used to teach so many different math concepts, from basic counting to fractions and decimals. My PDF of base ten blocks includes units (ones), rods (tens), flats (hundreds), and cubes (thousands) in 15 assorted colors, plus a black-and-white copy to print on your favorite paper (or to let your students design their own set)! Just print, cut, use. Print on cardstock and laminate to add durability; glue magnets to the backs to display