TACK-TILES® Teaching number positions
and practice
Materials needed: TACK-TILES® Braille
System - literary or Nemeth version
Procedure: This is a wonderfully simple
demonstration. I first heard it to be used by a teacher in the
U.K. The teacher was working with a very young child and wanted
to convey the idea of how a number changes its value as it moves
from the units column to the tens column, hundreds column, etc.,
She first showed this laterally, raising the value of digits to
the left by placing additional digits to the right as we might
on paper. To reinforce the concept, the teacher then stacked the
left most TACK-TILE® on top of the one to its immediate right
giving that left most vertical stature to complement its numeric
upgrade. She then placed the stack of two atop the next TACK-TILE®
to the right bringing the original digit even higher in vertical
and numerical stature. Simple, tactile, illustrative, ingenious.