In the past, learning English as a separate subject seemed relatively easy. The textbook selected and graded items of language which were put into context and then practised intensively. New items were carefully controlled so that the student could cope quite easily. Now that English is used as a medium of instruction, however, all this has changed. Unknown items of grammar and vocabulary appear in texts which attempt to explain new and often difficult information. Difficulties with the language interact with difficulties as regards the subject matter. The student’s reading in his own subject slows down and his comprehension becomes less secure. He expresses himself slowly and often fails to convey his ideas exactly. He is disappointed to find that under pressure he makes a lot of unnecessary mistakes in areas where he knows the correct language forms. His social relations are difficult as he cannot find the right phrase quickly enough to keep a conversation going; so his language often betrays him into dullness, coldness, or worst of all rudeness. Instead of the students being in control of the language, the language seems now to be in control of the student.
All of this can be very depressing and the student can start to feel very anxious. Working in a foreign language is also very tiring, and the concentration and self-discipline required to correct one’s mistakes is very great indeed.

In order to approach the problem of anxiety in play, let us consider the activity of building and destroying a tower. Many a mother thinks that her son is in a ‘destructive stage’ or even has a ‘destructive personality’ because after building a big, big tower, the boy cannot follow her advice to leave the tower for Daddy to see, but instead must kick it and make it collapse. The almost manic pleasure with which children watch the collapse in a second of the product of long play-labor has puzzles many, especially since the child does not appreciate it at all if his tower falls by accident or by a helpful uncle’s hand. He, the builder must destroy it himself. This game, I should think arises from the not so distant experience of sudden falls at the very time when standing upright on wobbly legs afforded a new and fascinating perspective on existence. The child who consequently learns to make a tower ‘stand up’ enjoys causing the same tower to waver and collapse; in addition to the active mastery over a previous passive event, it makes one feel stronger to know that there is somebody weaker-and towers, unlike little sister, can’t cry and call ‘mummy’