Get a pair of scales and let the child weigh anything he wishes. Let him learn to accurately judge a pound, then to estimate the weight of an article before placing it upon the scales. Teach the child comparative weights by lifting articles and determining which is the heavier. Encourage him to make a pair of balances with which he can balance one object against the other after he has compared them by holding one in each hand. Many variations can be easily made of these ideas, to help the child to become accurate in estimating weights. All practice will be more interesting if there is a record made, and the spirit of competition is introduced. Measuring Give the child a measure--quart or pint--and let him learn to estimate the capacity of the different utensils of the kitchen. He should in this manner become able to judge accurately the contents of different containers. The child should learn to estimate in pecks, bushels, etc. This is good exercise and a valuable ability for later life. Let the games given here suggest new ones to be used; any factor which will vary or add to the game is valuable. Keep always in mind the fact that the highest usefulness of the games is training the senses to be more accurate. TRAINING THE EAR This is a very important sense; consider its relation to memory and how your decisions and judgments are based upon things you have heard or thought you heard. Psychological tests have revealed the fact that the ear of the average person is mistaken thirty-four per cent of the time. Think of it--one-third of your ear impressions are mistaken. The resulting memory, judgment and action must suffer. This is true largely because of lack of a conscious effort to develop this important sense. A Test Exercise Have the child stand across the room and listen for the tick of a watch which you hold in your hand. If he cannot hear the tick, advance slowly toward him and keep track of the distance at which the child first distinguishes the ticking. It will be interesting to test each ear separately. Any physical defect in the child's hearing can be found by this test. Encourage him to make a deliberate effort to hear the watch. Do not be too hasty in moving towards him as he will have to concentrate his attention before the tick can be heard. This exercise is a good one for the development of attention. Practice with this yourself. You will find as your attention wanders that you will lose the consciousness of the ticking of the watch. The Game of Whispering Have the child stand across the room or several feet away. Whisper a word and see if he can repeat it. Encourage him to try a little more and to be more quiet; then whisper the same word but no louder. Work with this exercise, increasing the tone gradually until the child distinguishes what is said. Then whisper other words and sentences. This exercise can be lengthened and is excellent for the development of attention and memory as well as of hearing.