ENTRANCE UNITS 41 



year and half usually allotted to this subject. The work must be done in 

 the fourth year and must include a careful review of at least the third 

 semester's work and the following additional topics: variations, arith- 

 metical and geometrical progressions, binomial theorem for positive and 

 integral exponents, and such other topics as time and the advancement of 

 the class will permit. 



2. PLANE GEOMETRY, 1 unit. 







An entire year should be devoted to plane geometry, with much atten- 

 tion to problems. The skilled teacher will constantly apply in a concrete 

 way the principles learned and will lose no opportunity to review the 

 algebra of the preceding year. (See "Geometric Exercises for Algebraic 

 Solution," The University of Chicago Press.) 



3. SOLID GEOMETRY, y?. unit. 



Required for entrance to all engineering courses. Should be taken in 

 high school. One half year should be devoted to it. Elective entrance 

 credit for all other courses. 



4. TRIGONOMETRY, y* unit. 



This subject is not ordinarily taught in high schools, nor should it be 

 encouraged except in the larger city schools. Only plane trigonometry 

 should be given. A half-year should be devoted to it, and the work should 

 include the definitions and relations of the six trigonometrical functions 

 as ratios, the theory of logarithms and use of tables, the proof of im- 

 portant formulae, and considerable practice in trigonometric transforma- 

 tions and the solution of the right and oblique triangles. 



Science 



Four and one-half units will be accepted in this division for entrance 

 credit. 



No more work in this group should be undertaken than can be treated 

 satisfactorily by laboratory methods. It is recommended that, in general, 

 subjects offered be pursued for at least a year. 



There should be running water and adequate drainage in all rooms 

 used for laboratory purposes and sufficient apparatus to enable the student 

 to demonstrate or investigate at first hand the phenomena or topics under 

 consideration. In all science work, good light, abundant table space, and 

 dust-proof cases for apparatus are absolutely necessary. 



1. AGRICULTURE, ^ to 2 units. 



The development of the study of agriculture in high schools in Iowa 

 is now such that it merits a recognition in entrance requirements. Where 

 the high school does work of the proper quality and sufficient in quantity to 

 cover one-half or more units, entrance credit will be given as above 

 indicated. 



Credit in plant industry will be given for approved work in horti- 

 culture, farm crops, forestry, and soils. This will include the study of 

 plant propagation, plant nutrition, and plant improvement, and such various 



