Learning Resources LER6356 Interlocking Base Ten Starter Set
Thinking Kids Math Base Ten Starter Set
Carson-Dellosa Thinking Kids' Math Base Ten Starter Set
Teacher Created Resources Foam Base Ten Set (20617)
ETA hand2mind Blue Interlocking Base Ten Blocks, Math Manipulative Starter Kit (Set of 161)
Educational Insights Foam Magnetic Base 10 Set (121 Pieces)
Beyond Base Ten: A Mathematics Unit for High-Ability Learners in Grades 3-6 (William & Mary Units)
A Place for Zero (Charlesbridge Math Adventures)
Didax Educational Resources Place Value Flip Stand
Learning Resources Counting & Place Value Pocket Chart