Three Ways to Use Ten Frames for Upper Elementary {Powerful!} - Shelley Gray
Amazon.com: Torlam Magnetic Ten-Frame Set - Math Manipulative for Elementary - 5 Ten Frames & 55 Magnetic Math Counters for Kids, Math Games for Kindergarten (Upgraded Version for Hand-held & 2 Black
The Ultimate Guide to Using Ten Frames
Ten Frame Addition Worksheets (free printable) - The Activity Mom
Free Ten Frame Addition Printable - kindermomma.com
Addition and Subtraction with Ten Frames - Fairy Poppins