text: function NormalGrader() {
  
  	this.pointsFor = function(result) {
  
  		if (result === 'incorrect') return 0;
  		if (result === 'noanswer') return 0;
  		if (!isNaN(result)) return 1;
  	}
  
  }
  
  module.exports = function() {
  	return NormalGrader;
  }