Free skip counting printable puzzles for winter. Cute pictures for reviewing skip counting by 2's and 5's.
Teaching Symmetry to Preschoolers with LEGO Bricks - Mom Inspired Life Preschool math activity that uses LEGO to teach symmetry.
When you give children the chance to build harder shapes, they often can surprise you!
Equivalent Fraction posters - good "benchmark fraction" visual for early in the year!