Mr. Harry's Kindergarten on YouTube has THE BEST songs to teach counting, behavior, and other kindergarten concepts. You WILL NOT regret taking the time to look!
Also on these boards
Math Facts Can be Fun! 8 strategies and games to help kids remember math facts
Kids love to draw their sight words!! 19 pages that include at least one sentence for each of the 91 pre-primer and primer Dolch sight words. $2