Anytime between 3 and 5 is "normal". It's also interesting to know that often toddlers seem to hold a pencil or crayon really nicely (although the grip is "static" rather than "dynamic" meaning that they move their whole hand rather than just their fingers), and then lose that grip around 2 or 2 1/2, then regain it later.<br><br>
Breaking the crayons into little pieces is a great way to teach grip.<br><br>
Other fun things to do to encourage good grip:<br><br>
1) Play with turkey basters, and eye droppers in the bath, or with colored water in glasses to make pretty colors.<br><br>
2) Tear tissue paper into tiny pieces, crumple them up and glue them on things.<br><br>
3) Use little pieces of sponge to paint, or to "write" or draw with water on a chalkboard.<br><br>
4) Eat with tweezers or the kind of chopsticks that are stuck together on one end -- you can either buy these or make them by taking a pair of chopsticks, rolling up the wrapper, and wrapping a rubber band around it -- I can't really explain it, ask any waiter at a Chinese or Japanese restaurant and they'll teach you.<br><br>
Have fun doing these things!