Mathematics Concept & Skill Development Lecture Series: Webvideo consolidation of site lessons and lesson ideas in preparation. Price to be determined. Bright Students: Top universities want you. While many have high fees: many will lower them, many will provide funds, many have more scholarships than students. Postage is cheap. Apply and ask how much help is available. Caution: some programs are rewarding. Others lead nowhere. After acceptance, it may be easy or not to switch. Are you a careful reader, writer and thinker?
Five logic chapters lead to greater precision and comprehension in reading and
writing at home, in school, at work and in mathematics. Early High School Arithmetic
Deciml Place Value  funny ways to read multidigit decimals forwards and
backwards in groups of 3 or 6. Early High School Algebra
What is
a Variable?  this entertaining oral & geometric view
may be before and besides more formal definitions  is the view mathematically
correct? Early High School GeometryMaps + Plans Use  Measurement use maps, plans and diagrams drawn to scale.  Coordinates  Use them not only for locating points but also for rotating and translating in the plane.  What is Similarity  another view of using maps, plans and diagrams drawn to scale in the plane and space. Many humanmade objects are similar by design.  7 Complex Numbers Appetizer. What is or where is the square root of 1. With rectangular and polar coordinates, see how to add, multiply and reflect points or arrows in the plane. The visual or geometric approach here known in various forms since the 1840s, demystifies the square root of 1 and the associated concept of "imaginary" numbers. Here complex number multiplication illustrates rotation and dilation operations in the plane.  Geometric Notions with Ruler & Compass Constructions : 1 Initial Concepts & Terms 2 Angle, Vertex & Side Correspondence in Triangles 3 Triangle Isometry/Congruence 4 Side Side Side Method 5 Side Angle Side Method 6 Angle Bisection 7 Angle Side Angle Method 8 Isoceles Triangles 9 Line Segment Bisection 10 From point to line, Drop Perpendicular 11 How Side Side Side Fails 12 How Side Angle Side Fails 13 How Angle Side Angle Fails 
www.whyslopes.com >> Algebra Starter Lessons >> 9 Proportionality Backwards and Forwards >> 1 What is Proportionality Next: [2 Algebraic View.] Previous: [Proportionality Forwards and Backwards Skill Development Guide.] [1] [2][3] [4] [5] [6] What is ProportionalityThis pages describes rates and proportionality constants with units. Rates are in fact proportionality constants. Fractions with units may appears in calculations below as proportionality constants, and as the given or to be found values of variables or quantities below. Different kinds of ProportionalityThere might be more Direct Proportionality (Direct Variation): A number or quantity y is directly proportional to another quantity x in several circumstances when and only when the quotient y รท x = z/x has a constant value k,. or equivalently, there is a constant k, a number or quantity, such that y = k x. That is, in each instance where we find or measure the value of x, the value of y will be kx.
That is, a single quantity y is directly proportional to a second quantity x when and only when there is a nonzero constant k such that y = k x the proportionality relation.
Joint Proportionality (Joint Variation). A number or quantity z is directly proportional to quantities x and y in several circumstances when and only when there is a constant k, a number or quantity, such that z = k xy That is, in each instance where we find or measure the value of x and y, the value of z will be kxy
Inverse Proportionality (Inverse Variation): A number or quantity z is inversly proportional to another quantity x in several circumstances when and only when the product z×x has a constant value k,.or equivalently, there is a constant k, a number or quantity, such that z = k/ x. That is, in each instance where we find or measure the value of x, the value of z will be k/x. Here z is directly proportional to the reciprocal of x = the multiplicative inverse of x.
Algebraic Perspective of Proportionality.In situations involving multiple proportionalities, amounts are proportional to each other and to any linear function of the amounts in questions (in which the coefficients are fixed and positive).
Assume x, y and z are all nonzero. In 3D projective geometry, the point
(x,y,z) with is equivalent to another point (X,Y,Z) when and only when
x:y:z = X: Y: Z when and only when (i) the three ratios x/X, y/Y and z/Z
have a common value k, when and only when (ii) there is a constant k such
that x =kX, y=kY and z =kZ. See the earlier discussion of multiple
rations. www.whyslopes.com >> Algebra Starter Lessons >> 9 Proportionality Backwards and Forwards >> 1 What is Proportionality Next: [2 Algebraic View.] Previous: [Proportionality Forwards and Backwards Skill Development Guide.] [1] [2][3] [4] [5] [6] 
Road Safety Messages for All: When walking on a road, when is it safer to be on the side allowing one to see oncoming traffic? Play with this [unsigned]
Complex Number Java Applet
to visually do complex number arithmetic with polar and Cartesian coordinates and with the headtotail
addition of arrows in the plane. Click and drag complex numbers A and B to change their locations.
Pattern Based ReasonOnline Volume 1A, Pattern Based Reason, describes origins, benefits and limits of rule and patternbased reason and decisions in society, science, technology, engineering and mathematics. Not all is certain. We may strive for objectivity, but not reach it. Online postscripts offer a storytelling view of learning: [ A ] [ B ] [ C ] [ D ] to suggest how we share theory and practice in many fields of knowledge. Site Reviews1996  Magellan, the McKinley Internet Directory:Mathphobics, this site may ease your fears of the subject, perhaps even help you enjoy it. The tone of the little lessons and "appetizers" on math and logic is unintimidating, sometimes funny and very clear. There are a number of different angles offered, and you do not need to follow any linear lesson plan. Just pick and peck. The site also offers some reflections on teaching, so that teachers can not only use the site as part of their lesson, but also learn from it. 2000  Waterboro Public Library, home schooling section:
CRITICAL THINKING AND LOGIC ... Articles and sections on topics such as
how (and why) to learn mathematics in school; patternbased reason;
finding a number; solving linear equations; painless theorem proving;
algebra and beyond; and complex numbers, trigonometry, and vectors. Also
section on helping your child learn ... . Lots more!
2001  Math Forum News Letter 14,
... new sections on Complex Numbers and the Distributive Law
for Complex Numbers offer a short way to reach and explain:
trigonometry, the Pythagorean theorem,trig formulas for dot and
crossproducts, the cosine law,a converse to the Pythagorean Theorem
2002  NSDL Scout Report for Mathematics, Engineering, Technology  Volume 1, Number 8
Math resources for both students and teachers are given on this site,
spanning the general topics of arithmetic, logic, algebra, calculus,
complex numbers, and Euclidean geometry. Lessons and howtos with clear
descriptions of many important concepts provide a good foundation for
high school and college level mathematics. There are sample problems that
can help students prepare for exams, or teachers can make their own
assignments based on the problems. Everything presented on the site is
not only educational, but interesting as well. There is certainly plenty
of material; however, it is somewhat poorly organized. This does not take
away from the quality of the information, though.
2005  The NSDL Scout Report for Mathematics Engineering and Technology  Volume 4, Number 4
... section Solving Linear Equations ... offers lesson ideas for
teaching linear equations in high school or college. The approach uses
stick diagrams to solve linear equations because they "provide a concrete
or visual context for many of the rules or patterns for solving
equations, a context that may develop equation solving skills and
confidence." The idea is to build up student confidence in problem
solving before presenting any formal algebraic statement of the rule and
patterns for solving equations. ...
Senior High School Geometry

Euclidean Geometry  See how chains of reason appears in and
besides geometric constructions. Calculus Starter Lessons
Why study slopes  this fall 1983 calculus appetizer shone in many
classes at the start of calculus. It could also be given after the intro of slopes
to introduce function maxima and minima at the ends of closed intervals. 