Lesson Plan: Order of Operations for 6th Grade
Learning Objectives:
Students will be able to identify the order of operations in numerical and algebraic expressions.
Students will be able to apply the order of operations to evaluate numerical and algebraic expressions.
Materials:
Whiteboard or projector
Markers or pens
Paper
Order of operations mnemonic device (such as PEMDAS)
Procedure:
Introduction:
Begin by asking students if they have ever heard of the term "order of operations." If so, ask them what they know about it. If not, explain that the order of operations is a set of rules that tells us which mathematical operations to perform first when evaluating an expression.
Review of PEMDAS:
Introduce the PEMDAS acronym to students, and explain each step of the order of operations:
Parentheses
Exponents
Multiplication and Division (left to right)
Addition and Subtraction (left to right)
Examples:
Provide students with a few examples of numerical and algebraic expressions, and have them work together to identify the order in which the operations should be performed. For example:
(5 + 3) * 2 = ?
10^2 / 5 = ?
3 * 4 - 2 = ?
Practice Problems:
Give students a worksheet or online practice activity to complete, where they will evaluate numerical and algebraic expressions using the order of operations.
Assessment:
Give students a quiz or test to assess their understanding of the order of operations.
Multiple Choice Test:
What does PEMDAS stand for?
A. Parentheses, Exponents, Multiplication and Division, Addition and Subtraction
B. Parentheses, Equations, Multiplication and Division, Addition and Subtraction
C. Parentheses, Exponents, Multiplication and Division, Subtraction and Addition
D. Parentheses, Equations, Multiplication and Subtraction, Division and Addition
Which operation should be performed first in the expression 5 * (3 + 2)?
A. Multiplication
B. Addition
C. Subtraction
D. Grouping
Which operation should be performed first in the expression 10^2 - 4?
A. Exponent
B. Subtraction
C. Multiplication
D. Division
Which operation should be performed first in the expression 6 / 2 + 3?
A. Division
B. Addition
C. Multiplication
D. Subtraction
Which expression has the same value as 2 * (4 + 3)?
A. 2 * 7
B. 14 / 2
C. (4 + 3) * 2
D. 14 + 2
Evaluate the expression (5 + 3) * 2:
A. 16
B. 10
C. 8
D. 4
Evaluate the expression 10^2 / 5:
A. 4
B. 2
C. 1
D. 0.5
Evaluate the expression 3 * 4 - 2:
A. 8
B. 10
C. 12
D. 14
Evaluate the expression (5 + 2) / 3:
A. 1
B. 2
C. 3
D. 4
Evaluate the expression 10 - 4 * 2:
A. 2
B. 6
C. 8
D. 10
Answers:
A
D
A
A
C
A
A
A
B
B
The order of operations is a set of rules that tells us which mathematical operations to perform first when evaluating an expression. The order of operations is important because it ensures that we all evaluate expressions in the same way, and that we get the same answer.
The order of operations can be summarized using the PEMDAS acronym:
Parentheses
Exponents
Multiplication and Division (left to right)
Addition and Subtraction (left to right)
No comments:
Post a Comment