This free versatile kindergarten math resource with a candy corn theme can be used to teach, practice, or review the concept of one less and one more than a given quantity or number. There are two sets of nine candy corn jar number cards, 1 to 9 and 11-19, in color and black/ white. There is also a mat, in color and black/ gray/ white, for showing quantities with counters. A recording sheet is included. This activity can be used in guided math, intervention, or resource groups or as an independe