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Give your child crayons specifically made for younger kids, and let them color. Younger kid's crayons are usually smaller and wider (more like a pebble than a stick), so they are easier to grasp. Just like any part of the body, kids need to build up muscle and dexterity in their hands before they learn to write. If it's a nice day, take it outside. Use chalk to color on the sidewalk. Using macaroni or large beads, string them on yarn to create wearable art. The act of picking up pieces and stringing them works on dexterity. For this project, lay out the noodles in a bowl on the table. Cut a length of string. Thread a noodle onto the string, and tie the noodle in place on one end with a knot. Place the string back on the table, and proceed to create a string for each kid. Let your kids thread noodles on their respective strings, and then tie them off to create the necklace. Let them have fun playing around with the dough. Their creations don't need to be perfect--just let them create what they want with the dough. Working with Play-Doh and other clay builds up hand muscle and dexterity. Give your child a spray bottle to water the household plants. Ask the child to go around the house and give each plant some water. The action of squeezing the bottle builds up muscles in the hand. Give your kids finger puppets and ask them to come up with a story about them. Have them act it out with the puppets on their hands. You can demonstrate first if your kids seem confused. Moving the puppets increases dexterity and coming up with a story encourages their imagination. Any kind of cutting activity helps strengthen their hands and increase fine motor skills. Just be sure to give them safety scissors so they don't hurt themselves. To make snowflakes, fold a piece of paper in half horizontally. Fold it in half again, but do it vertically. Fold it in half several times, always keeping one end without any folds. You should have a triangle shape that is misshapen on the non-folded end. Cut shapes in the the paper. Angular shapes work best. Also, make the unfolded end regular by cutting along the edge in a design. Open the paper back up for a snowflake. Kids love stickers, and playing with them also encourages dexterity, as they must employ fine motor skills to peel them off the paper. Make sure to give kids paper to place the stickers on. Otherwise, the stickers will end up all over your kids and the house.
Let your kid color. Make necklaces together. Give them Play-Doh. Water the plants. Tell a story with finger puppets. Teach them to cut snowflakes. Play with stickers.