MHX Teaching Tools - 100 Chart

From Microhardxce:

100 Chart - this is a simple stand alone program that does not need to be installed. This 100s chart helps children learn how to skip count by intevals of 3, 4,and 25. (The full version allows skip counting by 2s, 10s, and also includes a number line to reinforce these skip counting conceptds. The 100s chart skip count numbers light up a different color according to what number is being skip counted by. The vibrant colors help to illustrate the repeating patterns that appear when one skip counts and is a great tool for student, parent, and teacher.