Here is a great little set of ten frame flash cards. Simply print them on index cards, laminate and trim. These are big enough to use with a small group or with a student one-on-one. Printing on index cards is similar to printing on an envelope. Most home printers have a paper setting for index cards, if not, choose your paper setting to be 3" x 5".
Ten Frames on Index Cards
by Red, White and Blue Teacher
is licensed under a Creative Commons Attribution 3.0 United States License