I would print the cards representing units in a particular period the same color. More Place Value Ideas - FREE printable - Example on extending learning beyond an ipad game with the use of FREE printable resource
Multiplication Facts Assessments and Brag Tags Here is a great CCSS Aligned resource for your classroom: Operations Algebraic Thinking These multiplication assessments may be used for Pre-Assessments, Post Assessments, and speed practice.
TEACH YOUR CHILD TO READ - Learn fractions in a creative way by making these fraction flowers out of paper plates- includes a set of printable fraction circles. This makes learning math fun! Super Effective Program Teaches Children Of All Ages To Read.