A great visual and center activity for understanding place value. This one is SO easy to make, and SO effective!
Awesome ARRAYS ideas
How to Teach Arrays: arrays puzzles, centers, worksheets, small group activities, everything!
How to Teach Arrays - use dough to build rectangular arrays and so many more great arrays ideas on this blog post!!
Teaching Multiplication Arrays with a Hole Punch...perfect for students just learning multiplication, or for remediation.
Angles, Triangles, and the Start of Geometry in 6th Grade Math!