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
1,  Elements of Reason.
1A. Pattern Based Reason 
1B. Math Curriculum Notes
2. Three Skills for Algebra
3. Why Slopes & More Math

 (Optional Book Orders)
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
More Site Areas 
8. Complex Numbers 
9. Qc Maths  Education  
10. Secondary IV(?) maths
11. Real  Analysis 
12. LaTeX2HotEqn:
13. Electric Circuits Etc  
14.  Français
15. Algebra, Odds & Ends, Etc
More Site Areas 
16. Math Education Essays
17. Telling & Working with Time
18. Maps, Plans & Drawings
19. Quantitative Skills for  home, shopping and work 
20. Statistics Useful, or Not.
Try the
Twiddla Whiteboard
to work online with others.

[Site Entrance & Hub]Back ] Area Intro ] Up ] Next ][Site Exit]


YOU are better than YOU think. Show yourself  how:  

      |      
//  _   _ \\
/\             /\
  <|  (o)   (o)   |> 
 \     | |      / 

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

 -/[]\- 
||
   / \_ 
 ||||||||||||||||||||||||||||

 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;

      |      
//  _   _ \\
/\             /\
<|   (o)   (o)  |> 
     | |     |
   \             /   
\    =   /

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

 -/[]\- 
||
  _ / \     
 ||||||||||||||||||||||||||||

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.

 

Mathematics for Ages 8 or 9

Awkwardness with an idea or skill often signals difficulty with previous ones. It may indicate at least one earlier skill has been missed or forgotten. When an awkwardness is felt or seen, learners should go or be taken back to practice the missing skills, more precisely the ones just before them to restore confidence and build skills, so that the learner can go further. 

Can your charge do or understand the following?  Where not there is room for instruction - learning takes takes and patience, yours included.

Decimals and Whole Numbers:

  1. Count from 1 to 10,000?
  2. Read aloud numbers 1 to 10,000 from or given decimal representation of all? Test this knowledge with a sample?
  3. Write  numbers between 1 and 10000 as decimals? Test with a sample?
  4. Write numbers between 1 as 10000 as words: for instance: three thousand three hundred and eighty-four.  Ask him or her to help you fill in your checks/cheques.
  5. Count by 1000s to 10,000?
  6. Identify  place or position from first to a thousandth? Talk about position in class or a race. 
  7. Recognize odd and even numbers, and explain why?
  8. Recognize when a number is a multiple of 2, 3, 5 or 10?
  9. Add and subtract pairs of numbers from 1 to 18 automatically?
  10. Add and subtract lists of 2 digit numbers all at once or by grouping and adding partial sums to obtain the total?
  11. Understand and explain place value in decimal notation for numbers from 1 to 1000?
  12. Add and subtract two and three digit decimal numbers with and without carries or borrows?
  13. Know how to check the results of a subtraction via an addition?
  14. Fill in the 10, 12 or 20 times table by repeated addition.
  15. Fill in the 12 times table from memory?
  16. Fractions:  add and subtract decimal fractions, multiples of 0.1 and/or 0.01.
  17. Add and subtract small amounts of money (dollars and pennies) from 0.01 to 10000 dollars?  read and write the decimal notation for amounts of money, and also write the word-only description of these amounts. 
  18. Add  pairs of  numbers in the range 1 to 10000 by decimal column methods. Test with examples that do not and then do involve carries. Have your charge test the result of  an addition via a subtraction?
  19. Subtract  or find the difference between pairs of numbers 1 to 10000 by  decimals column methods?  Test with examples that do not and then do involve borrows? Have your charge test the result of subtraction via an addition?
  20. Say which is the greater or smaller in a pair of numbers?  Can you charge use the greater and less than signs > and < to indicate when one number is greater than or less than another? (Here greater than is used to compared magnitude. Later on, your charge will be used to indicate the relative location of signed numbers along the real number line.)
  21. Order a set of numbers in  - increasing order and in decreasing order? There are two exercises here.
  22.  Locate whole number plus  fraction distance along a ruler or real number line.

Geometry and Multiplication

  1. Pick a unit length, say one inch or one centimeter. With your  charge to draw a large square with sides of length 10 units and then asked him or her to divide the square into one hundred small, equal-size squares, each with sides of length one unit.  Next with your child to fill in the 10 times table by finding the number of small squares there are in rectangles of dimensions 1 by 1 to 10 by 10. Your charge may see multiplication as a form of repeated addition and as a way to count the the number of squares in a rectangles with sides of length 1 to 10 units.

Fractions:

  1. Write a whole number plus  a proper fraction as an improper fraction?
  2.  Write an improper fractions as a whole number plus a proper fraction.
  3.  locate whole and fractional distances along a ruler or real number line: 1, 1/2, 1/3, 2/3, 1/4, 2/4, 3/4, 4/4, 1/5, 2/5,3/5, ... and so on.
  4. Read fractions aloud? 
  5. Add fractions with the same denominator using notation ( 3/7 + 2/7 = 5/7) and verbally (three fifths plus one fifth is four fifths)
  6. Understand that 3/5 is 3 times 1/5th?
  7. With the aid of a ruler,  order proper and improper fractions by size and position.
  8. Order proper fractions by size with  the aid of lengths representing each fraction.
  9. Visualize the product (1/5)(3/4) as dividing each of the three quarters of a unit length into five equal pieces, and taking one fifth of all.  The result is 3/20.
  10. Visualize the product (2/5)(3/4) as dividing each of the three quarters of a unit length into five equal pieces, and taking two fifths of all.  The result is 3*2/20.
  11. Measure how many times a fractional length (say 3/4) goes into a whole number or fractional length (say 8, 7.5 or 11).
  12. Take the result of the previous and multiply it by 3/4.
  13. Multiply pairs of  numbers in the range 1 to 1000 by decimal column methods?
  14. Divide pairs of  numbers in the range 1 to 1000 by long division methods, and thus find quotients and remainder.  Does your child know that the remainder plus (quotient times divisor) yields the "original" number.
  15. Understand and explain place value in the decimal representation of whole numbers, 1 to 10000? Where are the units, tens, hundreds, thousand columns?
  16. Draw rectangles with sides of integral length (multiples of 1) or fractional length (multiples of 1/2) and then count how many full, half or quarter squares are needed to cover the rectangle. In each full square should be lightly divided into four equal quarters by dashed lines - assuming the borders are solid. Check that the count equals width times length - that gives a shortcut for computing the count.

Geometry

  1. Recognize or describe pentagons, hexagons, octagons, pyramids and triangular prisms?
  2. Can you child measure lengths to the nearest fraction of a unit on a ruler?
  3. Can your unit use inches, feet and miles in measurement? (USA/UK only)
  4. Use centimeters, meters and kilometers for measurement?
  5. Use units of weight: ounces, pounds, ..? (USA/UK only)
  6. Use units of mass: kilograms, grams.. ?
  7. Calculate perimeters of circles, triangles and rectangles by measurement?
  8. Calculate the area of rectangles by covering with unit squares?  Sides may be multiples of a unit length or multiples of one half the unit length in the first instant.  The latter will lead to areas (number of squares required to cover) in terms of whole numbers, halves and quarters. 
  9. Count the volume (number of cubes) in a small rectangular box constructed from the cubes (physical ones).

Time Intervals

  1. Ask your child to add intervals of time like 5 hours, 30 minutes, 15 seconds in which minutes counting more than 60 are converted into hours and second over 60 are converted into minutes.  Doing this may help your child understand carries in decimal arithmetic.
 

www.whyslopes.com
Help your Child or Teen Learn:


Area Intro
Up
1. Speaking Skills
2.  Reading & Writing
3. Preparing for Science
4. Learning Takes Time and Effort
5. Math Books: kids & teens
6. Math Books: teens & adults
7. Readings for  Parents
8. Patience Please
9. Who is in Charge
10. Motivation
11.  Will to Learn
13. Links For Parents
14. JumpMath WorkBooks
15. Discipline in Schools

Maths for Ages 5+

Ages 5 or 6
Ages 6 or 7
Ages 7 or 8
Ages 8 to 9
Ages 10 to 13
Age 14
Where is it going


D What to do in School & Why  

E.How to Study Mathematics


To read, write and spell, your children need to learn and memorize the alphabet. Anything less would be absurd. That being said, learning and using mathematics demands that your children meet key skills and concepts, and not skip any. Where local schools do not provide the latter, you need to provide remedies.

Care and Precision: If your child  can learn to follow multi-step methods carefully and precisely in arithmetic, he or she may do so  in other subjects, as well. Get your child or teen, if you can, to sit down and study. Suggest he or she aim for skill and concept development and perfection for their own sake, not that of their teachers.

The will to learn is the key to success in school.  Parents do have to be educated to support or guide their children and teens. What matters more is support for the will to learn, for children and teens to be  told to try to learn and to ask teachers, their schools or classmates for help and more help, as needed. Teachers and parents need to push students, help them find the will to learn, teamwork helps.

The main reason and focus for high school mathematics is or should be preparation for calculus. That requires skill and knowledge perfection with fractions, algebra, geometry, trig and functions. Many high school programs do not provide this. Make sure alone or with help that your children and teens have a good command of fractions. 

 

 



www.whyslopes.com
[Top of this Page] [Site Exit] Back ] Area Intro ] Up ] Next ]
[Comments, Reactions, Feedback]
: Favourite SitesBBC News  and mathematics portion of  English National Curriculum  

All trademarks and copyrights on this page are owned by their respective owners.
Copyright to comments & contributions are owned by the Poster.
The Rest © 1995 onward by site author,   Alan Selby,
a 1983 McGill. Ph. D. in mathematics
All Rights Reserved.