What is left-handedness?

Left-handedness is absolutely normal in many children and they should be allowed to be left handed if that is how they are most comfortable!
Left-handed children prefer to draw and write with their left hand. Their left hand is their dominant hand and they are more comfortable and more proficient when using this left hand than when using their right hand.
Left-handedness is as normal as being left footed, when they have a dominant left foot and so prefer to kick with this one.
Similarly they could be left-eyed, when, if given a tube of paper to look through, they will automatically choose to put it to their dominant left eye.
(One child can be a mixture of these. For example, he could be left-handed, right- footed, and left-eyed. This is not unusual!)
Some classes might have no left-handed children and other classes might have a group of left-handed children. What amazes me is that in many cases, the teachers have not noticed the degree of left handedness and have not accommodated for it in their classroom management.
Teacher awareness and teacher compensation strategies can make such a difference to the educational development of the left-handed child.