Original Site Title: Appetizers and Lessons for Mathematics and Reason, June 1995 to April 2012. New site title:
Logic and Mathematics Skill & Concept Development with How-TOs Français: 26 pages
for college students, gifted teens, home-tutoring and K1-12 schooling; and for avid readers in school and out. See site volumes.

Logic 5 Chapters Arithmetic 10 Steps Algebra 12 Starter Steps & 5 Advanced Steps
Work & Study 23 Tips Geometry 15 Steps Calculus 70 Lessons. See Site Map

Ages 15+: Why study slopes Polynomials Quadratics Why factor polynomials Logarithms Functions
What is similarity Euclidean geometry leanly Coordinates + complex no.s Vectors DC Electric Circuits
Ages 12+: Prime factorization Written work formats Decimal place value Extend arithmetic skills orally
What is a variable 5. Fraction Operations by Raising Terms Solving Linear Equations: Take I Take II


Online Volumes: 1 - Elements of Reason, 2 - 3 Skills For Algebra, 3 - Why Slopes and
More Math
, 1A - Pattern Based Reason, 1B - Skill Development Principles + Troubles

Welcome: Site content may develop critical thinking, improve reading and writing, and build mathematics skills. See online chapters on on logic and pattern based reason.

Teachers: This December 2011, 5-phase framework offers a context for mathematics & logic instruction. Phases 1 to 3 focus on skills with actual or potential value for adult & daily life. College-oriented phases 5 & 4 focus on calculus & preparation for it. Phases 1 to 4 may also serve trades & professions not dependent on calculus.

Site Review: Math resources ... span ... arithmetic, logic, algebra, calculus, complex numbers, and Euclidean geometry. Lessons and how-tos .... provide a good foundation for high school and college ... mathematics. Read more.

Home < - Volume 1A Pattern Based Reason << Chapter 9 What-is-in-Chapters-10-to-18

[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11][12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30]


Chapter 9. More Elements of Reason

The previous chapters show how reliable rules and patterns can be used to arrive at conclusions or judgments. This raises the question: how can we recognize reliable rules and patterns? This second group of chapters on reason describes the origins, limitations and organization of rule- and pattern-based knowledge in all arts and disciplines.

The problem of identifying reliable implication rules and reliable information is described but not solved, except for the description of empirical methods of coping in science and technology. This identification problem touches many subjects. Students of critical thinking, persuasion, philosophy, mathematics, science and technology should find its discussion in these chapters helpful.

About the Next Chapters

Previous chapters also show how rules and patterns can be used one at a time or one after another to get conclusions. The use and chaining together of implication rules is called deductive thinking. The next group of chapters describe more elements of reason. The chapters in question, namely

  • 10 Responsibility
  • 11 Accidental Patterns
  • 12 Islands and Divisions of Knowledge
  • 13 Euclidean Model of Reason
  • 14 Views of Mathematics (somewhat technical)
  • 15 Objective Processes
  • 16 Origin of Rules and Patterns
  • 17 Discovery of Objective Ways
  • 18 Sense and Knowledge

give views of reason, persuasion and knowledge in our schools and communities and in our technical areas of knowledge. These chapters speak about how and where rules and patterns are needed, written, discovered or extracted from experience. This information itself is needed to recognize when and where the rules and patterns can be applied, and to be aware of their reliability or limitations.

The chapter Responsibility tries to clarify the meaning of liability and responsibility for actions and accidents. Then it talks about how liability and responsibility for our actions impose limits on our freedom. Principles for responsibility are suggested.

The chapter Accidental Patterns describes how human behavior which we have seen in the past may be accidental or coincidental. So we can have no expectation of this behavioral pattern continuing. This raises the problem of identifying which patterns of behavior are reliable and not just accidental or coincidental. How can we be (almost) sure that one event causes another? For technical areas of knowledge but not for human behavior, an answer is given in the chapter Origin of Rules. This chapter echoes and reinforces the discussion of Accidental Rules in the chapter Implication Rules.

The chapter Islands and Divisions of Knowledge describes how one- and two-way implication rules may link together rules and patterns of our communities and in our technical knowledge. Some parts of knowledge may be connected to others by chains of reason while other parts may be separate.

The chapter Objective Processes explains the notion of objectivity. The following of rules and laws in a fashion which gives repeatable and reproducible results independent of whom or what applies them leads to the concept of objective thought and actions in technological, in community or bureaucratic processes. Processes and results which are repeatable and reproducible are not necessarily optimal.

The chapter Origin of Rules and Patterns first describes how rules and laws are written or agreed to in society. Then it describes how reliable rules and patterns are recognized in our technical areas of knowledge (except for mathematics). The inference problem in empirical thought is to identify, draw, induct or extract from experience or tests, those rules and patterns which are reliable and not accidental. The word induct means to draw or extract. Inductive reasoning in empirical thought (not mathematics) refers to the identification of rules and patterns from experience.

Inductive reasoning in mathematics refers to the longer chains of reason associated with the principle of mathematical induction. The meaning of the phrase Inductive reasoning in mathematics refers to the longer chains of reason associated with the principle of mathematical induction.

The chapter Discovery of Objective Ways speaks about the non-objective, subjective and sometimes creative approaches in which objective ways are found. Problems for which solutions are not dictated by others leave room for thought and experimentation. Of course, hard thought and experimentation can be avoided if we can use a previously found solution known to work well. Sometimes that is preferable.

The chapter Euclidean Model of Reason describes a two thousand year old model (and method) for organizing technical knowledge. This method was first seen in the geometric works of Euclid and his followers. These works suggest how clear definitions and clear assumptions together with chains of reason can be used to firmly derive conclusions. Law-makers, theologians, scientists and mathematicians have often tried to follow this model in their areas of reason besides geometry. One reason for studying mathematics was to meet this model. The works of Euclid suggest an ideal we would like to achieve or approximate as well as possible.

The chapter Views of Mathematics describes how the first principles of arithmetic-based mathematics came from experience, and how by trial and error, calculations that work have been found in many disciplines. Then this chapter mentions the effort to follow the Euclidean Model of reason in mathematics and the associated disappointment. Not all is certain. Finally, the classroom view of mathematics after elementary school is described. The latter could skipped on first reading.

The last chapter in this group, Sense and Knowledge , speculates about the origin of self-consciousness and of our ability to tell and remember stories, theories or ideas linked together. As usual, more can be said or suggested in speculation (or rumor mongering) than proven. Serious students of reason and mathematics will not take the speculation seriously.

Teachers & Tutors: Site pages offer better or best practices for providing skills - simpler than expected & comprehensive but for exercises. For your charges, your duty is to study them alone or in groups and develop skill building exercises & activities to share. Start now. The effort here is the best I can do. Others are welcome to refine or exceed it. Please do.

Secondary Mathematics for Ages 11+, A Practical Approach for home-tutoring or -schooling, or for schools & colleges with local curriculum control. Study how to include site content - its skill development how-TOs and innovations into present or future lesson plans - some reading required.

Road Safety Messages and Questions: When and why should you face traffic when walking along a road or cycle path? Is it a good idea to hang limbs outside of cars etc? What gives more protection in a crash: a car, motorbike or bicycle? See too, the BBC-Belgium story Texting and Driving - texting & the impossible test - the article links to a gruesome utube video on the subject

The Logic of Injustice: How Texas sent an innocent man to his death - The wrong Carlos. Some judgments are irreversible. Procescution: Where and when prosectors play to win rather than for justice, guilt beyond a reasonable doubt goes unrespected due to prosecutors who putting winning first, those innocence before the law may be convicted. Some procescutors offices in continuing to accuse after a pardon due to reasonable doubt or innocent being shown, may sucessfully oppose compensaton for false convictions by asserting a pardon individual is still under suspicion. Then the pardoned individual or the latter's estate is not compensation for years or decade of improper or false imprisonment, or for execution. Site chapters on Logic
and some in Pattern Based Reason may slowly lead to greater precision in reading, applying and writing laws.

May 2012, Composition Starting: Pre-School and Primary Mathematics - Quantitative Skills, An Intellectual View, Feedback Welcome:

The 8 Most Popular Site Inlinks

20 Times Table - the most popular site page - popular pages - unexpected.
Fractions & Ratios - with lesson on raising terms to introduce & justify times, division & comparison as well addition & subtraction
Parent Center - See below
Volume 1, Elements of Reason - Intro to all site books.
What is a Variable - best for ages 13+
Written work formats for Arithmetic and Algebra - a skill method and standard!
Complex Numbers Visually - best for ages 13+
Natural Logs, Exponentials, Powers, Roots

Division of Labour: This site offers advice and directions with pointers to resources elsewhere, if known, when they help or lessen the need to write more.

Parent Center: Help your child or teen learn:

Parent-friendly Work Booklets for ages 3+ to 13 Use these or others to check or build skills. Other booklets are available but these booklets allow parents unsure of themselves in mathematics to help their children. The selection acquired in Canada is published in the USA. So it has a US orientation. In retrospect, the selection shows parents what to check with the booklets or by other ways, the choice is theirs. But in retrospect, the selection does not cover integral and fractions liquid weights and measures - ask the publishers to correct that! For ages 9 to 12 say, parents may compensate by showing boys and girls how to use weights or mass, and further measures in food preparation. Beyond that children may be shown how to measure and calculate angles, lengths and areas [proportional amounts too] directly or by using maps and plans drawns to scale. Learning how to gather and measure all the ingredients, pots and pans for a dish or a meal, along with cleaning up sets the stage for like activities or experiments in science courses, and in developing organizational skills, gives boys and girls a head start. Good luck. At the other extreme, more comprehensive than light, if your motto is McCainian: drill, drill, drill then Toronto mathematician and actor John Mighton's jump math organization has jump math workbooks for at least grades 3 to 8 for at-home and in-school use - training sessions for teachers available. Jump math has been expanding to cover older students. Jump Math Samples: plus Fractions for Grades 3-4 & Grades 5-6 [Read] Free Resources grades 1 to 8 [unread - likely to be good]. and

Mathematics Skills For Ages 3 to 14 - technical!

Skills with take home value - A few ideas

Basic skills include time-date-calendar Matters; money matters; map, plan and scale diagram matters;counting, measuring and figuring; decision making with logic and likelyhood; being careful and being aware of the domino effect of mistakes; reading and writing with precision.

Is your child able to add, subtract and multiply amounts of money, work with fractions, work with clocks and calendars, work with maps and plans, and measure length, weight-mass and volume? Schools may promote your son or daughter without providing basic skills in reading, writing and arithmetic.

Arithmetic and Number Theory Skills

Algebra Starter Lessons

1 Working With Sets
2 Formula Forward Use - Evaluation
3 Solving Linear Equations - Skip first step with students able to solve 1 eqn in 1 unknown.
4 Computation Rules and Function Notation
5 Real Numbers
6 More Less Greater Than Inequalities and Comparison
7 Axioms Logic and Equivalent Equations
8 Unifying Theme For Algebra
9 Proportionality Backwards and Forwards
10 Examples of Algebraic Reasoning
A Origins of Counting and Figuring Methods
B Real Numbers Extrinsic Development


Site coverage of formuala evaluation format, of computation rules and axioms, and of the forward and backward use of formulas and proportionality relations lessens the amount of natural talent needed to understand and explain algebra.

Geometry - maps plans trigonometry vectors

1 Maps Plans Measurement
2 Euclidean Geometry - Constructions + extras
3 Cartesian and Polar Coordinates
4 Lines and Slopes Take 1
5 What is Similarity
6 Trigonometry first steps
7 Complex Numbers
8 Unit-Circle Trigonometry
9 Lines and Slopes Take 2 with tangent function
10 Intersecting Straight Lines and Transversals
11 Parallel Straight Lines and Transversals
12 Function Translating and Rescaling
13 Vectors
14 Degrees to Radians and Radians to Degrees
15 Arc or Inverse Trigonometric Function

Pre-Teen and young teen mastery of skills and practices which should be common with map-plans-diagrams drawn to scale, contour interpretation included, has actual or potential take-home value for daily- and adult-life in solving routine problems. Elevating some practices to principles, axioms or postualates, provides a base for analytic and Euclidean geometry, an analytic view of similarity, and an efficient mastery of trigonometry and complex numbers. Right triangle trigonometry provide an analytic alternative to solving geometric problems by drawing diagrams to scale.

More Algebra

Natural-Logarithms Exponentials Powers Roots
Five Polynomial Operations
Quadratics Geometrically
Functions
5 Factored Polynomial Sign Analysis Examples
Rewriting algebraic substitution as function substitutions

The first topic leads to a full high school level theory for the forward and backward mastery of growth and decay models and for definition, range and domains of radicals, roots and powers. The next two topics make quadratics and polynomials easier to learn and teach. Site coverage of functions turns vertical and horizontal line rules into computation methods for evaluating functions.

70 Calculus Starter Lessons

Calculus Lessons Elsewhere:

  1. How to Ace Calculus: Street Wise Guide - Mostly Text.

  2. Flash Video for Calculus Phobics

They cover basic topics in ways likely to complement your notes, your textbooks and site material. When Goldilocks trespassed in the house of the three bears, she found three bowls of porridge, two not to her liking, and one just right. Different bears have different tastes. As invited guest here and elsewhere, if one or more explanations is not to liking, try another. It may be better or just right.

Unsolicited Advice

Learning to do and high marks if it comes to easy is often deceptive - light rather than deep. For that reason, students with learning difficulties determined not to let it get in their way may go deeper and farther than those with none. High marks, if the come easy, may be deceptive - provide a too light and not a deep mastery. That could have been your problem in secondary school, one that leads to comprehension shock or difficulties in calculus and more generally in the first year of college. Bon Appetite.


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Home < - Volume 1A Pattern Based Reason << Chapter 9 What-is-in-Chapters-10-to-18

[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11][12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30]


Logic-Reason for all
Careful Thinking
Chains of Reason
Mathematical Induction
Responsibility
Bodies-of-Knowledge

Arithmetic - Ages 10+
1. Deciml Place Value - fun
2. Decimals for Tutors
3. Prime Factors - quickly
4. Fractions + Ratios
5. Arith with units - science

Geometry
1 Maps + Plans Use
2 Euclidean Geometry
3 Rct +Polr Coordinates
4 Lines-Slopes [I]
5. What is Similarity
Algebra Starters - the base
1. Better Work Format
2. Solve Linear Eqns
3. Computation Rules
4. Axioms, Item 3 Viewpnt
5. Formulas Backwards
More Algebra
Logarithms-ax & m/nth roots
Five Polynomial Operations
Quadratics Geometrically
Functions || Vectors too
Arith. Skill Check+Answers
Calculus Prep/Preview
What is a Variable
Why study slopes
Why factor polynomials
Complex Numbers
Limits + Continuity

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