THE CENTRAL ASSOCIATION OF SCIENCE AND MATHEMATICS TEACHERS
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CENTRAL ASSOCIATION 777 a member of the committee, Miss Weeks will have valuable suggestions to offer the teachers. Professor Wm. A. Luby, of the Junior College, Kansas City, Mo., will discuss "The Real Problems of Education." Mr. Luby believes that in the educational turmoil of recent years some vitally important funda- mentals have been, in part at least, overlooked. As an experienced teacher and also as an author of popular texts, Mr. Luby will have a message that no wide-awake teacher will care to miss. Mr. R. L. Short, Principal of the Ames School, St. Louis, Mo., will give and address on "Preparing Pupils for High School Mathematics." Mr. Short says that the teaching of arithmetic fails largely through lack of interest on the part of the pupil. He is taught to mechanically perform the four fundamental operations and to struggle with fractions. Conse- quently, seventh and eighth grade teachers are spending valuable time teaching fundamental operations, and they are incidentally killing all liking for mathematics. All this because the pupil is not able to use his numbers. A remedy for this is to arouse interest by making a study of the system. The beauties of number can be shown through comparison, classification, factors, and decimals. Mr. Short will have a message of great value not only to the class- room teacher, but also to the administrator. The meeting will be open to the discussion of these topics. Every teacher is urged to come prepared to enter into the discussion, and to help to make this a memorable meeting. All phases of the subject will be represented from early grades to college. THE CENTRAL ASSOCIATION OF SCIENCE AND MATHE- MATICS TEACHERS. The twenty-second meeting of the Central Association of Science and Mathematics Teachers will be held at the Hyde Park High School, Chicago, Illinois, December 1 and 2, 1922. A program unusually strong in the prominence of its speakers, and in the wide range of interest covered, is offered for both the general and sectional meetings. Professor Theodore Scares, of the University of Chicago, noted for his appealing eloquence, will speak on the "Social Values in the School Curriculum." Dean M. E. Haggerty of the Uni- versity of Minnesota, one of the foremost authorities in the country on educational measurements, will discuss the "Place of Measurement in the Solution of Educational Problems in High School Science and Mathe- matics." Professor Otis W. Caldwell, the noted head of the Lincoln School, New York City, will deliver three addresses. And Professor John M. Coulter, of the University of Chicago, is so widely known and appreci- ated that every one will want to hear him on "Changing Ideals in Science Teaching." Teachers from the high school class-room will discuss methods and progress in their own work before the various sections. There is literally a feast of good things for every teacher of science and mathe- matics. The social interests of the members and their guests have not been overlooked. Abundant opportunity will be given for gaining information and inspiration from friendly personal conferences with teachers from various parts of the country. This is the twentieth anniversary of the organization of the Associa- tion. Come to the meeting with a determination to make it a con- spicuous milestone in the history of the organization. Help us to lead
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Transcript of THE CENTRAL ASSOCIATION OF SCIENCE AND MATHEMATICS TEACHERS
CENTRAL ASSOCIATION 777
a member of the committee, Miss Weeks will have valuable suggestionsto offer the teachers.
Professor Wm. A. Luby, of the Junior College, Kansas City, Mo., willdiscuss "The Real Problems of Education." Mr. Luby believes that inthe educational turmoil of recent years some vitally important funda-mentals have been, in part at least, overlooked. As an experiencedteacher and also as an author of popular texts, Mr. Luby will have amessage that no wide-awake teacher will care to miss.
Mr. R. L. Short, Principal of the Ames School, St. Louis, Mo., willgive and address on "Preparing Pupils for High School Mathematics."Mr. Short says that the teaching of arithmetic fails largely through lackof interest on the part of the pupil. He is taught to mechanically performthe four fundamental operations and to struggle with fractions. Conse-quently, seventh and eighth grade teachers are spending valuable timeteaching fundamental operations, and they are incidentally killing allliking for mathematics. All this because the pupil is not able to use hisnumbers.A remedy for this is to arouse interest by making a study of the system.
The beauties of number can be shown through comparison, classification,factors, and decimals.
Mr. Short will have a message of great value not only to the class-room teacher, but also to the administrator.The meeting will be open to the discussion of these topics. Every
teacher is urged to come prepared to enter into the discussion, and tohelp to make this a memorable meeting. All phases of the subject willbe represented from early grades to college.
THE CENTRAL ASSOCIATION OF SCIENCE AND MATHE-MATICS TEACHERS.
The twenty-second meeting of the Central Association of Scienceand Mathematics Teachers will be held at the Hyde Park High School,Chicago, Illinois, December 1 and 2, 1922.A program unusually strong in the prominence of its speakers, and
in the wide range of interest covered, is offered for both the general andsectional meetings. Professor Theodore Scares, of the University ofChicago, noted for his appealing eloquence, will speak on the "SocialValues in the School Curriculum." Dean M. E. Haggerty of the Uni-versity of Minnesota, one of the foremost authorities in the countryon educational measurements, will discuss the "Place of Measurement inthe Solution of Educational Problems in High School Science and Mathe-matics." Professor Otis W. Caldwell, the noted head of the LincolnSchool, New York City, will deliver three addresses. And Professor JohnM. Coulter, of the University of Chicago, is so widely known and appreci-ated that every one will want to hear him on "Changing Ideals in ScienceTeaching." Teachers from the high school class-room will discuss methodsand progress in their own work before the various sections. There isliterally a feast of good things for every teacher of science and mathe-matics.The social interests of the members and their guests have not been
overlooked. Abundant opportunity will be given for gaining informationand inspiration from friendly personal conferences with teachers fromvarious parts of the country.
This is the twentieth anniversary of the organization of the Associa-tion. Come to the meeting with a determination to make it a con-spicuous milestone in the history of the organization. Help us to lead
778 SCHOOL SCIENCE AND MATHEMATICS
in educational progress as we have done in a conspicuous way during thepast two decades.Every teacher of science and mathematics owes it to himself and to his
fellows to support teachers organizations. Help make this Associationwhat you think it ought to be. If you are a member, get a new member.The railroads are offering special rates. Watch for the year book.
Make your plans early to.attend the meeting.�[Alfred Davis, President.Soldan High School, Saint Louis, Mo.
AN IMMENSE DEPOSIT OF MAGNESITE IN SOUTHERNNEVADA.
A massive deposit of magnesite of unusual character that has recentlybeen brought to the attention of the United States Geological Surveypromises to yield a large and readily available supply of this material.The deposit lies in dark County, Nev., in the valley of Muddy River,one of the tributaries of Virgin River, a few miles above the town of St.Thomas. The material has been known for some time as kaolin, andsuccessful experiments for utilizing it as a porcelain clay are reported tohave been made, though they have not yet resulted in the exploitationof the deposit. The recognized outcrops have been located as miningclaims, and some preliminary exploration and development work hasbeen done. A side track on the St. Thomas branch of the Los Angeles& Salt Lake Railroad, about 3 miles northeast of the northernmostgroup of claims, offers a readily available railroad connection, and thestation has been named Kaolin from this deposit.The so-called kaolin is stated by the Geological Survey to be in fact a
magnesite and was deposited in a highly magnesian sedimentary bed,a part of a regularly stratified series of sedimentary beds exposed bystream, channels that cut across a low ridge at the upper edge of MuddyValley. The deposit forms a chalky-looking bluff, dazzling white in thebright sunlight. The material is porcelain-white, fine grained, andmassive, is remarkably free from foreign material, and has the structure-less appearance and conchoidal fracture that are generally characteristicof magnesite. It is not so hard as the more typical magnesite, and itcrumbles more rapidly on exposure to the weather.The deposit is included between tilted beds of conglomerate and sand-
stone below and shale above. The lower contact is sharply defined, butthe magnesite grades up into the overlying beds. The purer part of thedeposit consists of beds aggregating at least 200 feet in thickness. Withinthe section of purer material there are a few bands of sandy matter, butthese are minor in amount and apparently almost negligible, as theycould undoubtedly be avoided in mining. The whole section lies in theform of a "hogback"�that is, the softer beds lap up against a uniformslope of the sandstone and conglomerate that has a northeasterly dip of30° to 50°. .
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THE CREST OF THE SIERRA NEVADA.The highest point in the United States, Mount Whitney, is not an
isolated mountain peak like Mount Shasta or Mount Rainier, which areold volcanoes, but is a summit in the great tilted block of the earth^scrust, forming California^ sawtooth range, the Sierra Nevada.One stormy day early in the seventies the first Director of the Geological
Survey, Clarence King, laboriously, amid cloud and fog, climbed to thetop of Mount Whitney, as he supposed, only to find, long afterward,that he had really climbed a neighboring peak. By a second journey,
