Caesar’s Hors d’oeuvres--Why Our Students Fail in Mathematics? Two Principles

Hors d'oeuvres # 011

Why Our Students --When Problem Solving--Fail in Mathematics? Two Principles!

SIMPLE: They do not know it! Why?

1. The Law of the Signs:

  • + x + = + ( positive x positive = positive) [First Law]
  • + x  - = -  ( positive x negative = negative) [Second Law]
  • x  + = -  ( negative x positive = negative) [Third Law]
  • x  - = +  ( negative x negative = positive[Fourth Law]

2. Please Excuse My Dear Aunt Sally [PEMDAS].

Just  make a follow-up step-by step  and arithmetically solve each itemized task of this sequence:

  • Parenthesis
  • Exponent
  • Multiplicationn
  • Division
  • Addition
  • Subtraction

Thanks Aunt Sally !