This activity is designed to teach when to lift the pen when writing. It also teaches how to write in the correct proportions.

The potion master begins by writing a word. The color of the ink changes automatically as soon as he lifts his pen. The child must then write the word in the area below and can use the colors to check whether he or she has lifted the pen at the right time.

The potion master and child each have a potion. They are created by mixing the colors used. The longer the "stroke" is, the more of a given color will be used in the potion. The more similar the child's potion is to the master's, the more points they will get.