In order to practice patterns and counting, I had my kindergarteners make colored necklaces! They picked their favorite two colors out of a color-coded bead kit. I arranged individual baggies with 10 of each color. I handed out each baggie, and had the little guys count out 20 beads out (To make this more challenging for those who would find the activity too easy, I gave some students extra beads. Some were different colors than the rest of the beads in their bag, for a slight challenge, and some were the same, so they had to put in a more conscious effort to count each bead). The students then got to string up their beads and make a really cool ABAB patterned bead necklace! They loved them!
I arranged it so the students picked their beads a few days before and I had the bags pre-assembled for them. I included the string that I had pre-cut, and taped on both ends (one end was pointed, so they could more easily thread the beads, and one flat so none would fall off) before we started the lesson. This is just a tip for an age as young as kindergarten!