Mr. Black’s Math Class






         The fun of using blogs to help mathematics instruction

October 27, 2008

Agenda: October 27 and 28, 2008

Filed under: Math 8 — rdblack2112 @ 6:00 am



EQ: What is the order of operations?

Monday:
BR: Use your calculator to evaluate each of the following. Type each one as it is shown.

  1. 3 + 2 × 4
  2. (3 + 2) × 4
  3. 5 ÷ 2 × 2
  4. 5 ÷ (2 × 2)

Tuesday:
BR: Evaluate each of the following using the order of operations.

  1. 4 + 5 × 3
  2. 3 × 6 ÷ 3
  3. 14 + 3 × 3

Lesson:

  1. Discuss BR.
  2. Discuss order of operations using PEMDAS.
    P – Parenthesis
    E – Exponents
    M – Multiplication or
    D – Division
    A – Addition or
    S – Subtraction
  3. Examples of using the order of operations (without exponents).
  4. Discuss the left-to-right rule.
  5. Examples of further use of the order of operations (without exponents).

Assignment:
Teacher created worksheet.

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