Appetizers and Lessons for Mathematics and Reason (www.whyslopes.com)
||Définition d'une variable || Algèbre || Arithmetique || Logique ||La raison basée sur les règles et modelés||

Online Volumes (Book Orders)
1,  Elements of Reason.
1A. Pattern Based Reason 
1B. Math Curriculum Notes
2. Three Skills for Algebra
3. Why Slopes & More Math

Mathematics Course Designers: LAMP offers food for thought.
More Site Areas 
1. Help Your Child or Teen Learn 
2. Solving Linear Equations
3. Fractions Ratios Rates Proportions & Units
4. Euclidean Geometry
5. Analytic Geometry/Functions 
6. Number Theory
7. More Calculus
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8. Complex Numbers 
9. Qc Maths  Education  
10. Secondary IV(?) maths
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15. Algebra, Odds & Ends, Etc
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16. Math Education Essays
17. Telling & Working with Time
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20. Statistics Useful, or Not.
Try the
Twiddla Whiteboard
to work online with others.

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YOU are better than YOU think. Show yourself  how:  

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Read  logic chapters 1 to 5  in online volume Three Skills for Algebra  for greater skills & confidence in  work 
and study.

Learn to read notes and textbooks like a lawyer, so that no nuance, no subtlety and no clause escapes your attention.

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 Logic chapters 1 to 5  re- appear not in sequence, as is or longer,  in  Volume 1A,  Pattern Based Reason, Bon Appetite.

Logic Mastery
 Amazing, Amusing, Amorous,  Delicious, Delightful, Edifying, Strengthening Elixir. 
It eases work & learning difficulties Makes the hard easier. Opens eyes. Leads to greater precision.
in reading and
writing

Logic mastery makes the hard, easier. Logic mastery  leads to better, stronger and richer comprehension.  Logic mastery  improves reading and writing.  Logic mastery ease learning difficulties.  Logic mastery gives a headstart.  In sum, logic mastery  will develops critical thinking, improve reading and writing, and give a firmer base for work and studies at many levels. Good luck.


After logic  (a) continue reading Three Skills for Algebra, chapters 8 to 14  and do so alongside site area on solving liinear Equations ; or (b) see this calculus starter lesson and Volume 3, Why Slopes  & More Math, chapters 2 to 6;

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Caution: Site advice is approximately correct, for some circumstances, not all. That leaves room for thought

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What may be learnt and when depends on how skills and concepts are developed. Making the hard easier and clearer will allow earlier & richer development of skills and concepts.


Try the Twiddla Whiteboard. In principle, it  allows to people to draw and chat together online on a copy of this webpage or a clean sheet. The chat may be via text or audio.  Visit www.twiddla.com to set up whiteboards to work with the webpage of your choice.

For online automated help in senior high school maths & calculus, visit  quickmath.com  For Automatic Calculus and Algebra Help with derivatives, integrals, graphs, linear equations, matrix algebra, visit calc101.com  With  overlap, each site quickmath & calc101offers a different range of services, some free, some not, all based on webmathematica. Good luck.

Modern Math Curricula

During the late 1950s and mid-1960s modern mathematics instruction in the form of an axiomatic approach to algebra and geometry, and the explanation of sets, appeared in high school classes. In contrast to elementary instruction, in which

  1. the algebraic way of reasoning and writing is not talked about,
  2. implication rules do not appear, and
  3. physical objects and examples were used to introduce and repeat ideas,

modern mathematics instruction puts aside the use of physical objects. Instead, it was based on logic, more precisely, the concept of derivation from first principles or axioms, on a set-based description of topics, and on a mastery of algebraic reasoning. But the latter, an algebraic way of writing and reasoning, has been employed in math classes through generations of students and teachers without a direct explanation, apart from a few paragraphs in texts to unclearly introduce the notion of a variable. My book Three Skills Leading to Algebra" offers a remedy.

Postscript (September 2006):

(1) The modern mathematics curricula, circa late 1950-80, introduced the advanced set theory view of pure mathematics in the classroom. While students learn to count and do arithmetic with the decimal representation of whole numbers, fractions and/or reals, exactly or approximately, the axioms for modern mathematics did not mention and hence did not sanction the decimal representation of numbers, whole to real. The modern mathematics view of calculus with its epsilon-delta codification of limits, continuity and convergence was to abstract even for many advanced students - those that did well in high school and college mathematics.  The modern mathematics curricula provided logical developments with steps too large or too hard for most to follow or take. The modern mathematics curricula assumed but did not support the common knowledge in that the axiom given were not linked to the prior knowledge or experience of students and teachers, that acquired in say primary school. Masters of high school and university modern mathematics curricula (analysis included) may found themselves with two nearly separate views of the subject - the practical skills that support the common knowledge, and a theoretical view in the common knowledge of decimals plays no part.  All the foregoing is in addition to the lack of a clear development for students of the algebraic way of writing and reasoning.  Explore the rest of this site for remedies. Bon Appetit.


Chapter Sections: Up ] 14 Set Theory ] 14 Before & After Set Theory in Pure Mathematics ] 14 Euclidean Model for Physics ] 14 Applied Maths and Electricity Apart from Sets ] 14  Decimals Absent From Pure Mathematics ] [ 14 Modern Mathematics Education ]

Next: Chapter 15, Objective Processes, Search for Repeatable and Reproducible Results

 


www.whyslopes.com
Volume 1A, Pattern Based Reason

 Chapters 1 to 24

FOREWORD
Three Remarks

1 Introduction
2 Communication
3. Elements of Reason
4 Implication Rules
5. Deception
6 Chains of Reason
7 Longer Chains
For & From Consistency
8. Language Change
9 Next Chapters
10 Responsibility
11 Accidental Patterns
12 Knowledge Islands
13 Euclidean Logic
14 Deductive & Empirical Views of Mathematics
15 Objectivity
16 Origin of Rules
and Patterns
17 Objective Ways

18. Waking up
19. Symbols  & Logic
20. Pronouns or Symbols
21. Truth Tables I.
22. Truth Tables II
22. Biconditional
22. Contrapositive
23. IF-THEN table
24. Indirect Reason Again

To reason often means to persuade someone of the need for an idea or action. That someone could be yourself. So be careful.

1A Logic Postscripts
- online only

+Proof by Absurdity alias proof by contradiction
+How the demand for consistency supports the law of the excluded middle
+Reality versus or with the aid of Imagination
+Links for reason, logic and crtical thinking
+Three Remarks
+History Lost or Missing

There is a difference between
knowing how to spend money,
and having money to spend.

There is likewise a difference
between mastering a skill
and having meeting a situation in which it applies.

 



 


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a 1983 McGill. Ph. D. in mathematics
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