Mathematics
Algebra
Allan Gray
Algebraic concepts are presented in infinite detail, with patience and systematic review that teachers seldom have an opportunity to incorporate because of the countless distractions and interruptions they face. Available to faster and slower students alike, for review, makeup, and acceleration. Content includes all of what would be First Year Algebra for most schools.
10 recordings, 12 units. Stock No. 367007 (Includes one complete set of the correlated publications below) $164.35 

Additional Copies of Printed Publications 
Student Workbook 10.95

Key to Workbook 3.95

Tests & Key 3.85

Basic Calculus
Lloyd Williams, Ph.D., Reed College
A course for a student who has had two years of Algebra, a semester of
Trigonometry with logarithms, and who knows how to use graphs. This course
will prepare the student for a freshman college course in Physics or
Engineering in which Calculus is used. Equivalent to a onesemester college
course in Differential and Integral Calculus, and is a preparation for an
honors course in Theoretical Calculus.
The concepts of limit, derivative, & integral are explained without formal
proofs but with extensive graphical interpretation. Explanatory comments
are made about all problems, & many are solved in detail. Symbols &
notations are carefully explained.
8 recordings, 7 lessons. (Includes one
complete set of the correlated publications below) Stock # 350500  $140.95 

Additional Copies of Printed Publications 
Student Workbook 13.95

Key to Workbook 5.95

Constructional Geometry
Brunelle / O'Neill
This course provides background in Geometry, acquaints students with
geometrical terms, and teaches how to solve simple problems involving
geometry or geometrical figures. It stresses doing, by having students
work mainly with the ruler, compass, and protractor. There is also some
review of basic numerical calculations, such as proportions, square roots, etc.
6 recordings, 13 lessons. Stock # 350300
(Includes one complete set of the correlated publications below)  $108.50 

Additional Copies of Printed Publications 
Student Workbook 13.95

Key to Workbook 3.95

Tests 4.95

Key to Tests 3.95

General Mathematics
Gray / Matousek
A very thorough review of basic math principles — starting with
singlecolumn addition and progressing through fractions and decimals.
Extensive testing for convenient determination of need and accomplishment.
6 recordings, 12 lessons. Stock # 350900
(Includes one complete set of the correlated publications below)  $103.55 

Additional Copies of Printed Publications 
Student Workbook, 2nd Ed 10.95

Key to Workbook 3.95

Tests 3.95

Tests Key 3.25

Problem Solving Arts  An Alternative to Mathematics
Norman Crowhurst, Ph.D.
Part 1 This phase of learning to solve problems is described as “developing simple tools to work with.” It runs through the four basic functions, use of various measurement units (including metric), negative numbers, approximations and decimals, percentages, early geometrical problems, and graphing.
14 recordings, 28 lessons. Stock # 256050
(Includes one complete set of the correlated publications below)  $227.10 

Additional Copies of Printed Publications 
Student Workbook 12.95

Key to Workbook 3.95

Tests & Key 4.95

Part 2 explores progressively easier and faster ways to solve
successively harder problems. It covers algebra as a simplifier, up through
simultaneous and quadratic equations, finding ways to check validity and
accuracy, understanding irrational quantities, powers, roots, more geometry,
applied to shortcuts in calculating and problemsolving, with a practical
approach to imaginary and complex numbers.
12 recordings, 24 lessons. Stock # 256050
(Includes one complete set of the correlated publications below)  $195.80 

Additional Copies of Printed Publications 
Student Workbook 14.95

Key to Workbook 3.75

Tests & Key 3.95

Part 3 covers ways to use mathematics on itself, to make calculating
and problemsolving easier, up through introductions to differential and
integral Calculus, and discussions of coordinate systems, MacLaurin’s Series,
conic sections, Fourier Series, computer applications, and many other practical
considerations.
12 recordings, 24 lessons. Stock # 256090
(Includes one complete set of the correlated publications below)  $196.20 

Additional Copies of Printed Publications 
Student Workbook 15.95

Key to Workbook 3.75

Tests & Key 3.95

Introductory Statistics
Norman Crowhurst, Ph.D.
Statistics is a subject of growing importance in many fields, and has
become a required subject in many Schools of Education and Business
Administration, as well as Junior and Community Colleges. Because the
subject is often little understood, wrongly applied, or in the wrong
context, this new course has been designed to correct that deficiency,
so its graduates can move freely through the “mystical” realms of
statistics with assurance that they can apply established principles
appropriately.
6 recordings, 12 lessons. Stock # 413000
(Includes one complete set of the correlated publications below)  $103.95 

Additional Copies of Printed Publications 
Student Workbook 12.95

Key to Workbook 4.25

Numerical Trigonometry
Bryson / Gray
The development leading to the principal ideas of the course is unique
for this level of study. The Introduction to Trigonometric ratios is made
through a study of the standard position angle and coordinates on the plane.
A student is led to think of Trigonometric ratios first as properties of
general angles; then from these properties, the specific relationships for
right triangle Trigonometry are obtained with an easytofollow style. The
climax of the course is the application of Trigonometric ratios to the solution
of the four cases of the oblique triangle.
4 recordings, 8 lessons. Stock # 355000
(Includes one complete set of the correlated publications below)  $70.70 

Additional Copies of Printed Publications 
Student Workbook 11.95

Key to Workbook 3.95

Taking the Mysticism from Mathematics
Norman Crowhurst, Ph.D.
This book was originally prepared, during the 60s, to show why a large
proportion of our population has hangups about math, and to enable such
people to overcome their individual hangups, to become proficient and
interested in math. It has done that and far more, for it provides the
foundation for a problemsolving, systemsdesign approach to a far greater
variety of subjects, that can aid in solving many of our nation’s problems today.
Stock # 297020, ISBN 0894202235  $9.75 

