MATHS

 MATHS TOPICS

Videos about Mathematics. Listen carefully.

Addition and subtraction.  Multiplication and division.

Negative numbers.

Number properties.

Order of operations.

Factors and multiples.

Fractions.

Decimals.

Percents

Ratios and proportions (basic)

Exponents (basic)

Algebra.

• Why all the letters in Algebra? 

• Why we do the same thing to both sides: simple equations?

• Representing a relationship with a simple equation

• One-Step Equation Intuition
• One step equation intuition exercise intro
• Adding and subtracting the same thing from both sides
• Intuition why we divide both sides
• Why we do the same thing to both sides: two-step equations
• Why we do the same thing to both sides: multi-step equations
• Why we do the same thing to both sides basic systems

• Percentages

  Describing the Meaning of Percent
  
  Describing the Meaning of Percent 2
  Converting percents to decimals
  Representing a number as a decimal, percent, and fraction
  Converting decimals to percents (ex 1)
  Converting decimals to percents (ex 2)
  Converting decimals to percents
  
  
  

  Percent word problems

  Growing by a percentage  
  Solving Percent Problems  
  Solving Percent Problems 2  
  Solving Percent Problems 3  
  Discount tax and tip word problems  
  Markup and commission word problems
  
  

  Reconociendo variaciones directas e inversas

   

  
  

  Functions as Graphs  Descartes and Cartesian Coordinates .The Coordinate Plane
  

  Function example problems

   

  Statistics intro: mean, median and mode 

  Example: Finding mean, median and mode 

   

  Basic Probability

  Example: Marbles from a bag

  Example: Picking a non-blue marble 

   

  Similar Triangle Basics Similarity Postulates

  Teorema de Thales  

  The Pythagorean Theorem .Pythagorean Theorem II       ....

  Teorema de Pitágoras        Calcular hipotenusa o catetos

  
  
  

   
  

  Teorema del cateto   

  Perimeter, area and volume 

  Cuadrado, rectángulo, rombo y romboide

  
  

   

Creating and solving linear equations.

Geometry.

"Envy shoots at others and wounds itself". English Proverb quotes.
“Envy eats nothing but its own heart”. German Proverb quotes.
“It is better to want what you have than to have what you want.”  Proverb quotes
“The envious man thinks that if his neighbor breaks a leg, he will be able to walk better himself”.  Helmut Schoeck quotes
 "Envy is counting the other fellows blessings intead of your own".  Proverb quotes.
 “Nothing sharpens sight like envy”.
“Envy is a pain of mind that successful men cause their neighbors”
“Sympathy one receives for nothing, envy must be earned.”
 As a moth gnaws a garment, so do envy consume a man.  Saint John Chrysostom

La envidia va tan flaca y amarilla porque muerde y no come.  Quevedo.
El silencio del envidioso está lleno de ruidos. Khalil Gibran.
El tema de la envidia es muy español. Los españoles siempre están pensando en la envidia. Para decir que algo es bueno dicen: "Es envidiable". Jorge Luis Borges