Original Site Title: Appetizers and Lessons for Mathematics and Reason, June 1995 to April 2012. New site title:
Logic and Mathematics Skill & Concept Development How-TOs Site Map || Français: 26 pages
for college students, gifted teens, home-tutoring and K1-12 schooling; and for avid readers not in school

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

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.

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17 matches:

  1.    wt: 7:   1 Maps Plans Measurement/
  2.    wt: 6:   13 Vectors/
  3.    wt: 6:   8 Unit Circle Trigonometry/
  4.    wt: 6:   6 Trigonometry first steps/
  5.    wt: 5:   15 Arc or Inverse Trigonometric Function/
  6.    wt: 5:   14 Degrees to Radians and Radians to Degrees/
  7.    wt: 5:   12 Function Translating and Rescaling/
  8.    wt: 5:   11 Parallel Straight Lines and Transversals/
  9.    wt: 5:   10 Intersecting Straight Lines and Transversals/
  10.    wt: 5:   9 Lines and Slopes Take 2 with tangent function/
  11.    wt: 5:   7 Complex Numbers/
  12.    wt: 5:   5 What is Similarity/
  13.    wt: 5:   4 Lines and Slopes Take 1/
  14.    wt: 5:   3 Cartesian and Polar Coordinates/
  15.    wt: 5:   2 Euclidean Geometry Constructions Theory extras/
  16.    wt: 5:   Geometry maps plans trigonometry vectors/
  17.    wt: 1:   2 Formula Forward Use Evaluation/

Web Page Search

69 matches:

  1.    wt: 2:   Maps Plans Drawings
  2.    wt: 2:   13 Pythagorean spatial distance formulas
  3.    wt: 2:   10 Pythagorean plane distance formula
  4.    wt: 2:   4 Angles on Maps Plans drawn to scale
  5.    wt: 2:   3 Lengths and Areas on Maps and Plans
  6.    wt: 2:   5 Interpreting and Drawing Maps and Plans.
  7.    wt: 1:   About site lesson plans
  8.    wt: 1:   3 Formula or function graphing exercise
  9.    wt: 1:   8 quadratics backward use of various formulas
  10.    wt: 1:   9 Formulas for Real Exponents with Logarithms
  11.    wt: 1:   8 Formulas for Fractional Exponents with Logarithms
  12.    wt: 1:   7 Formulas for Roots with Logarithms Derivation
  13.    wt: 1:   6 Formulas for Even and Odd Roots with Logarithms
  14.    wt: 1:   13 Velocity Vectors in Physics
  15.    wt: 1:   8 Parallel Vectors
  16.    wt: 1:   6 Vectors with Coordinates
  17.    wt: 1:   3 Navigation with Arrows or Vectors
  18.    wt: 1:   17 tangent function angle sum formulas
  19.    wt: 1:   26 Formulas for products of sines and cosines
  20.    wt: 1:   25 tangent double angle formula Slope connection
  21.    wt: 1:   24 tangent Angle Difference Formula
  22.    wt: 1:   22 sine of 22.5 degrees via half angle formulas
  23.    wt: 1:   21 sine and cosine Half Angle Formulas
  24.    wt: 1:   20 sine and cosine Double Angle Formulas
  25.    wt: 1:   17E Trig Formulas for dot and cross Products
  26.    wt: 1:   17D cis formulas for sine cosines and tangent
  27.    wt: 1:   17C sine and cosine double triple angle formulas
  28.    wt: 1:   17B sine cosine Angle Sum Formulas via cis
  29.    wt: 1:   Unit Circle Development of Trigonometry
  30.    wt: 1:   Right Triangle and Unit Circle Trigonometry
  31.    wt: 1:   13 Trig Formulas for dot and cross Products
  32.    wt: 1:   12 cis formulas for sine cosines and tangent
  33.    wt: 1:   11 sine and cosine double triple angle formulas
  34.    wt: 1:   10 sine cosine Angle Sum Formulas via cis
  35.    wt: 1:   8 Unit Circle Development of Trigonometry
  36.    wt: 1:   6 Trigonometry Sines of Supplementary Angles
  37.    wt: 1:   Why Trigonometry the whyslopes view
  38.    wt: 1:   Right Triangle and Unit Circle Trigonometry
  39.    wt: 1:   8 Mid Point Formula
  40.    wt: 1:   8 Distance Between Points on a Line
  41.    wt: 1:   PS C Similarity Use Recognize it in Trigonometry
  42.    wt: 1:   8 More Use of Maps Not Drawn to Scale
  43.    wt: 1:   6 Figuring with Maps Not to Scale
  44.    wt: 1:   19 Signed Multiples of Vectors
  45.    wt: 1:   16 Collinear Horizontal Arrows Vectors
  46.    wt: 1:   13 Arrows and Vectors in a Plane
  47.    wt: 1:   9 Circle Area and Perimeter Formula Backwards Forwards
  48.    wt: 1:   5 Triangle Area Formula Backwards
  49.    wt: 1:   4 Rectangle Area and Like Formulas Backwards
  50.    wt: 1:   8 Coordinates for Maps and Planes
  51.    wt: 1:   3 Geometric Formulas and Function Notation
  52.    wt: 1:   1 Formulas Dependence and Function Notation
  53.    wt: 1:   Formula Usage Show Work Format
  54.    wt: 1:   13 Naming Identifying Formulas with Words
  55.    wt: 1:   8 Compound Interest Formula Evaluation
  56.    wt: 1:   7 Compound Interest Formula Introduction
  57.    wt: 1:   5 Box Volume Formula Example
  58.    wt: 1:   4 Circle Area Formula Example
  59.    wt: 1:   3 Triangle Area Formula Example
  60.    wt: 1:   2 Another Rectangle Area Formula Example
  61.    wt: 1:   3 signed coordinates for maps and planes
  62.    wt: 1:   11 Adding Integers Formulas and Examples
  63.    wt: 1:   10 Integer Multiplication Formulas
  64.    wt: 1:   Formula Evaluation how to show work
  65.    wt: 1:   38 Formulas and derivatives for powers and roots
  66.    wt: 1:   Chapter 23 Links To Trigonometry
  67.    wt: 1:   Chapter 20 Vectors and Complex Numbers
  68.    wt: 1:   Chapter 14. Forward and Backward Use of a Formula
  69.    wt: 1:   Euclidean and Analytic Geometry with Complex Numbers and Trigonometry

Extended Search

272 matches:

  1.    wt: 9:   4 Angles on Maps Plans drawn to scale
  2.    wt: 9:   3 Lengths and Areas on Maps and Plans
  3.    wt: 8:   8 More Use of Maps Not Drawn to Scale
  4.    wt: 8:   6 Figuring with Maps Not to Scale
  5.    wt: 7:   13 Velocity Vectors in Physics
  6.    wt: 7:   8 Parallel Vectors
  7.    wt: 7:   6 Vectors with Coordinates
  8.    wt: 7:   3 Navigation with Arrows or Vectors
  9.    wt: 7:   17 tangent function angle sum formulas
  10.    wt: 7:   26 Formulas for products of sines and cosines
  11.    wt: 7:   25 tangent double angle formula Slope connection
  12.    wt: 7:   24 tangent Angle Difference Formula
  13.    wt: 7:   22 sine of 22.5 degrees via half angle formulas
  14.    wt: 7:   21 sine and cosine Half Angle Formulas
  15.    wt: 7:   20 sine and cosine Double Angle Formulas
  16.    wt: 7:   17E Trig Formulas for dot and cross Products
  17.    wt: 7:   17D cis formulas for sine cosines and tangent
  18.    wt: 7:   17C sine and cosine double triple angle formulas
  19.    wt: 7:   17B sine cosine Angle Sum Formulas via cis
  20.    wt: 7:   Unit Circle Development of Trigonometry
  21.    wt: 7:   Right Triangle and Unit Circle Trigonometry
  22.    wt: 7:   6 Trigonometry Sines of Supplementary Angles
  23.    wt: 7:   Why Trigonometry the whyslopes view
  24.    wt: 7:   Right Triangle and Unit Circle Trigonometry
  25.    wt: 7:   13 Pythagorean spatial distance formulas
  26.    wt: 7:   10 Pythagorean plane distance formula
  27.    wt: 7:   A Measurement with Ruler Proper Use
  28.    wt: 7:   5 Drawing to Scale Avoids Angle Distortions
  29.    wt: 7:   2 Measuring Area Directly
  30.    wt: 7:   1 Length Measurement
  31.    wt: 6:   A Global Time and Navigation
  32.    wt: 6:   15 Dot and Cross Product
  33.    wt: 6:   14 Why Scalar Multiplication Distributes Physical Argument
  34.    wt: 6:   12 From Applied To Pure Mathematics
  35.    wt: 6:   11 Component Method
  36.    wt: 6:   10 Parallelogram Addition Method
  37.    wt: 6:   9 Head to Tail Coordinate View
  38.    wt: 6:   7 Coordinate Addition and Scalar Multiplication
  39.    wt: 6:   5 Head To Tail Arrow Addition
  40.    wt: 6:   4 Resultant of a Sum of Movements
  41.    wt: 6:   2 Signed Coordinates
  42.    wt: 6:   1 Unsigned Coordinates
  43.    wt: 6:   Vector and Complex Number Applet
  44.    wt: 6:   35 sines and cosines of 2A 3A 4A 5A
  45.    wt: 6:   34 sines and cosines of 2A 3A 4A 5A
  46.    wt: 6:   33 sines and cosines of 2A 3A 4A 5A
  47.    wt: 6:   32 seven rows of pascals triangle
  48.    wt: 6:   31 basic secant cosecant cotangent trig identities
  49.    wt: 6:   30 unit circle calculation of six trigonometric functions
  50.    wt: 6:   29 secant cosecant and cotangent for acute angles
  51.    wt: 6:   28 Expressing products of sines cosines as sums
  52.    wt: 6:   27 Logarithmic use of products of sines and cosines
  53.    wt: 6:   23 sine and cosine of 180 plus 22.5 degrees
  54.    wt: 6:   19 Pythagorean Identity For sine and cosine functions
  55.    wt: 6:   18 sum of sinusoidal waves as a single wave
  56.    wt: 6:   17G Pythagorean Theorem Converse
  57.    wt: 6:   17F Law of cosines
  58.    wt: 6:   17A The complex number valued trig function cis
  59.    wt: 6:   16 Right Triangle Complementary Angle Relations
  60.    wt: 6:   15 sine cosine Complementary Angle Relations
  61.    wt: 6:   14 cosine even and sine and tangent are odd
  62.    wt: 6:   13 Graph of tangent function many periods
  63.    wt: 6:   12 Graph of tangent function for one period
  64.    wt: 6:   11 tangent function undefined when terminal side vertical
  65.    wt: 6:   10 Graphs of sines and cosines many periods
  66.    wt: 6:   9 Graphs of sine and cosine over one period
  67.    wt: 6:   8 period of tangent function
  68.    wt: 6:   7 period of sine and cosine
  69.    wt: 6:   6 sines and cosines for reference angle 30 degrees
  70.    wt: 6:   5 sines and cosines for reference angle 60 degrees
  71.    wt: 6:   4 sines and cosines for reference angle 45 degrees
  72.    wt: 6:   3 sines and cosines for reference angle 90 degrees
  73.    wt: 6:   2 Quadrant I reference Angles
  74.    wt: 6:   1 Unit Points Reflections Rotations
  75.    wt: 6:   13 Trig Formulas for dot and cross Products
  76.    wt: 6:   12 cis formulas for sine cosines and tangent
  77.    wt: 6:   11 sine and cosine double triple angle formulas
  78.    wt: 6:   10 sine cosine Angle Sum Formulas via cis
  79.    wt: 6:   8 Unit Circle Development of Trigonometry
  80.    wt: 6:   8 Triangles Cascade Problem Solving
  81.    wt: 6:   7 Trignometric Ratios Unit Circle
  82.    wt: 6:   5 Trigonometric Ratios For Tangent and Special Triangles
  83.    wt: 6:   4 Trigonometric Ratios For Two Special Triangles
  84.    wt: 6:   3 Trigonometric Ratios sine and cosine
  85.    wt: 6:   2 Similar Triangles Equality of Corresponding Side Ratios
  86.    wt: 6:   1 Angle Measurement with Degrees
  87.    wt: 6:   8 Mid Point Formula
  88.    wt: 6:   8 Distance Between Points on a Line
  89.    wt: 6:   PS C Similarity Use Recognize it in Trigonometry
  90.    wt: 5:   16 cotangent function Definition Graph and Inverse
  91.    wt: 5:   15 cosecant function Definition Graph and Inverse
  92.    wt: 5:   14 secant function Definition Graph and Inverse
  93.    wt: 5:   13 cosecant function Definition Graph and Inverse
  94.    wt: 5:   12 motivation for term arctan
  95.    wt: 5:   11 arctan left inverse of tangent Graph
  96.    wt: 5:   10 arctan left inverse of tangent Definition
  97.    wt: 5:   9 motivation for name arcsin
  98.    wt: 5:   8 arcsin left inverse of sine Graph
  99.    wt: 5:   7 arcsin left inverse of sine Definition
  100.    wt: 5:   6 Graph of arccos function
  101.    wt: 5:   5 Swapping Coordinates is a reflection
  102.    wt: 5:   4 possible motivation for term arccos
  103.    wt: 5:   3 Left Inverse of cosine arccos definition
  104.    wt: 5:   2 cosine function more properties
  105.    wt: 5:   1 cosine function properties
  106.    wt: 5:   9 Summary Degrees to Radians and back
  107.    wt: 5:   8 Radian Measures of Common Angles
  108.    wt: 5:   7 Radian Measures in special Triangles
  109.    wt: 5:   6 Radian Measure to Degrees
  110.    wt: 5:   5 Degrees to Radian Measure
  111.    wt: 5:   4 Circle Sector Area proportional to Central Angle
  112.    wt: 5:   3 Circle Arclengh Proportional to Central Angle
  113.    wt: 5:   2 Radian Measure Numerical Value of one degree
  114.    wt: 5:   1 Degrees and Radians Introduction
  115.    wt: 5:   4 graphing y=Asin(x c)
  116.    wt: 5:   3 graphing y=f(x c) plus K
  117.    wt: 5:   2 Graphing y=Af(x) Vertical Scaling
  118.    wt: 5:   1 graphing y=f(x a)
  119.    wt: 5:   Parallel Lines and Parallel Transversals
  120.    wt: 5:   Proportionality of Line Segments From Parallel Transversals
  121.    wt: 5:   Triangle Angles Sum To 180 Degrees
  122.    wt: 5:   Parallel Lines and Alternating Corresponding Angles
  123.    wt: 5:   Parallel Lines and Interior Angles
  124.    wt: 5:   Construction Methods and Criteria for Isometric and Similar Triangles
  125.    wt: 5:   SAS Method For Isometric Or Proportional Triangle Construction
  126.    wt: 5:   Analytic View of Triangle Construction or Line Instersection More
  127.    wt: 5:   Straight Lines ASA Intersection Study More
  128.    wt: 5:   Straight Lines ASA Intersection Study
  129.    wt: 5:   Straight Lines Instersection Solving Equations
  130.    wt: 5:   Straight Lines Intersection of
  131.    wt: 5:   D Straight Lines Slope from Coordinates Examples
  132.    wt: 5:   C Straight Lines Slope from Coordinates
  133.    wt: 5:   B Straight Line Slope Scaling Properties More
  134.    wt: 5:   A Straight Line Slope Scaling Properties
  135.    wt: 5:   14 Straight Lines Equations General Case
  136.    wt: 5:   13 Straight Lines Finding Equations from 2 points
  137.    wt: 5:   12 Straight Lines Graphing mx plus b
  138.    wt: 5:   11 Straight Lines Graphing y=mx
  139.    wt: 5:   10 Straight Lines through Origin Equations More
  140.    wt: 5:   9 Straight Lines through Origin Equations
  141.    wt: 5:   8 Straight Lines Equation for vertical
  142.    wt: 5:   7 Tangent Function is odd on this domain
  143.    wt: 5:   6 Tangent Function Inclination Angle Take 2
  144.    wt: 5:   5 Tangent Function Graph
  145.    wt: 5:   4 Tangent Function Properties
  146.    wt: 5:   3 Straight Lines Slope as Tangent of Inclination Angle
  147.    wt: 5:   2 Straight Lines Slopes As Rise Over Run
  148.    wt: 5:   1 Straight Lines Slope Concept
  149.    wt: 5:   21 Logarithms Powers and Exponentials
  150.    wt: 5:   20 N th Roots of Complex Numbers
  151.    wt: 5:   19 N th Roots of Unity
  152.    wt: 5:   18 Sixth Roots of Unity
  153.    wt: 5:   17 Cube Roots of unity
  154.    wt: 5:   16 References and Originality Question
  155.    wt: 5:   15 Pythagorean Theorem Converse
  156.    wt: 5:   14 Law of cosines
  157.    wt: 5:   9 The complex number valued trig function cis
  158.    wt: 5:   7 Second Way to Calculate Products
  159.    wt: 5:   6 Field Properties of Complex Number
  160.    wt: 5:   5 An Easy Proof of the Distributive Law
  161.    wt: 5:   4 Multiplication Properties
  162.    wt: 5:   3 Addition Properties
  163.    wt: 5:   2 Complex Numbers made easier we hope
  164.    wt: 5:   1 Rectangular Polar Coordinates Review
  165.    wt: 5:   Appetizer A Complex Number Applet
  166.    wt: 5:   13 Navigation Location from Angles to 2 Landmarks
  167.    wt: 5:   12 Triangles Similarity More Problems
  168.    wt: 5:   11 Triangle Similarity Missing Side Problem
  169.    wt: 5:   10 Similarity of Triangles Equivalent of Two Criteria
  170.    wt: 5:   9 Similarity of Triangles Usual Criteria
  171.    wt: 5:   8 Similarity of Triangles and Polygons
  172.    wt: 5:   7 Translations Rotations Reflections Dilatations
  173.    wt: 5:   6 Geometric Diagrams in Class
  174.    wt: 5:   5 Similarity of Circles Squares and Rectangles
  175.    wt: 5:   4 Similarity Definition with Coordinate
  176.    wt: 5:   3 Similarity by Design with coordinates
  177.    wt: 5:   2 Similarity By Design
  178.    wt: 5:   1 Early Concept of Like or Similar Shapes
  179.    wt: 5:   Four Simple Exercises
  180.    wt: 5:   12 Links Lessons elsewhere
  181.    wt: 5:   11 A Partial Summary
  182.    wt: 5:   10 Midpoint of [a b] and [b a]
  183.    wt: 5:   9 Midpoint Coordinates Half Endpoint Sum
  184.    wt: 5:   7 Exercises to test skill and concept mastery
  185.    wt: 5:   6 Intersection of lines by solving linear systems
  186.    wt: 5:   5 Algebraic View of Slopes
  187.    wt: 5:   4 Equations for lines three forms
  188.    wt: 5:   3 Slope product for perpendicular lines
  189.    wt: 5:   2 point slope equation for a line
  190.    wt: 5:   1 Numerical view of lines and their equations
  191.    wt: 5:   What is and is not here
  192.    wt: 5:   12 Spatial Coordinates
  193.    wt: 5:   11 Triangle Inequality
  194.    wt: 5:   9 Pythagorean Theorem Chinese Square Proof
  195.    wt: 5:   7 Complex Numbers Appetizer
  196.    wt: 5:   6 Polar Multiplication and Rotation
  197.    wt: 5:   5 Cartesian Addition and Translation
  198.    wt: 5:   4 Polar Coordinates to and from
  199.    wt: 5:   3 Rectangular Coordinates Review
  200.    wt: 5:   2 Cartesian Coordinates with signs
  201.    wt: 5:   1 Cartesian Coordinates sans signs
  202.    wt: 5:   Euclidean Geometry Elsewhere LINKS
  203.    wt: 5:   PS H Distributive Law For Complex Numbers
  204.    wt: 5:   PS G Rotation Distributes over Addition
  205.    wt: 5:   PS F Scalar Multiplication Distributes over Addition
  206.    wt: 5:   PS E Multiplication with Polar Coordinates
  207.    wt: 5:   PS D Addition with Cartesian Coordinates
  208.    wt: 5:   PS B Parallelogram Construction Methods
  209.    wt: 5:   PS A Kite Construction Methods
  210.    wt: 5:   21 Parallelograms
  211.    wt: 5:   19 Right Triangle Similarity
  212.    wt: 5:   18 Triangle Similarity Take 1
  213.    wt: 5:   17 Right Bisectors of Triangle Sides
  214.    wt: 5:   16 Angles Subtended By Chords and Diameters
  215.    wt: 5:   15 Triangle Angle Sum is 180 degrees
  216.    wt: 5:   14 Parallel Lines Postulate
  217.    wt: 5:   13 Angle Side Angle Failure
  218.    wt: 5:   12 Side Angle Side Failure
  219.    wt: 5:   11 Triangle Construction Fails
  220.    wt: 5:   10 Dropping a perpendicular to line
  221.    wt: 5:   9 Construction of a right bisector
  222.    wt: 5:   8 Isoceles Triangles
  223.    wt: 5:   7 Angle Side Angle
  224.    wt: 5:   6 Ruler and compass Angle Bisection
  225.    wt: 5:   5 Side Angle Side
  226.    wt: 5:   4 Side Side Side
  227.    wt: 5:   3 Isometry of Triangles Congruence
  228.    wt: 5:   2 Correspondence between Triangles
  229.    wt: 5:   1 Initial Concepts and Terms
  230.    wt: 5:   Short Course on Euclidean Geometry
  231.    wt: 5:   About Folder Contents
  232.    wt: 2:   Maps Plans Drawings
  233.    wt: 2:   13 Naming Identifying Formulas with Words
  234.    wt: 2:   8 Compound Interest Formula Evaluation
  235.    wt: 2:   7 Compound Interest Formula Introduction
  236.    wt: 2:   5 Box Volume Formula Example
  237.    wt: 2:   4 Circle Area Formula Example
  238.    wt: 2:   3 Triangle Area Formula Example
  239.    wt: 2:   2 Another Rectangle Area Formula Example
  240.    wt: 2:   5 Interpreting and Drawing Maps and Plans.
  241.    wt: 1:   About site lesson plans
  242.    wt: 1:   3 Formula or function graphing exercise
  243.    wt: 1:   8 quadratics backward use of various formulas
  244.    wt: 1:   9 Formulas for Real Exponents with Logarithms
  245.    wt: 1:   8 Formulas for Fractional Exponents with Logarithms
  246.    wt: 1:   7 Formulas for Roots with Logarithms Derivation
  247.    wt: 1:   6 Formulas for Even and Odd Roots with Logarithms
  248.    wt: 1:   19 Signed Multiples of Vectors
  249.    wt: 1:   16 Collinear Horizontal Arrows Vectors
  250.    wt: 1:   13 Arrows and Vectors in a Plane
  251.    wt: 1:   9 Circle Area and Perimeter Formula Backwards Forwards
  252.    wt: 1:   5 Triangle Area Formula Backwards
  253.    wt: 1:   4 Rectangle Area and Like Formulas Backwards
  254.    wt: 1:   8 Coordinates for Maps and Planes
  255.    wt: 1:   3 Geometric Formulas and Function Notation
  256.    wt: 1:   1 Formulas Dependence and Function Notation
  257.    wt: 1:   Formula Usage Show Work Format
  258.    wt: 1:   12 Cone Cylinder Sphere Lesson Idea
  259.    wt: 1:   11 Volume of Sphere
  260.    wt: 1:   10 Volume of Pyramid
  261.    wt: 1:   9 Volume of Cone
  262.    wt: 1:   6 Pythagorean Hypotenuse Calculation Example
  263.    wt: 1:   1 Written work formats for developing and showing skill
  264.    wt: 1:   3 signed coordinates for maps and planes
  265.    wt: 1:   11 Adding Integers Formulas and Examples
  266.    wt: 1:   10 Integer Multiplication Formulas
  267.    wt: 1:   Formula Evaluation how to show work
  268.    wt: 1:   38 Formulas and derivatives for powers and roots
  269.    wt: 1:   Chapter 23 Links To Trigonometry
  270.    wt: 1:   Chapter 20 Vectors and Complex Numbers
  271.    wt: 1:   Chapter 14. Forward and Backward Use of a Formula
  272.    wt: 1:   Euclidean and Analytic Geometry with Complex Numbers and Trigonometry
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.
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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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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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