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Algebra 1.2
I can evaluate
expressions using
order of operations.
Warm-Up
 Make
the number 8 by using
each of the four numbers
exactly once along with any
operation and grouping symbol.
2, 3, 4, 8
Order of Operations

The ORDER OF OPERATIONS
establishes the necessary rules so
that expressions are evaluated in a
consistent way by everyone.

With your team discuss the order in
which an expression is to be
evaluated.
Example 1
Evaluate the expression
 Circle
the terms
 Simplify each term
until it is one number.
 Add the terms going
from left to right.
Hot Potato~(Round Table)
Every team has one sheet of paper and each
student has a different colored pencil.
A problem is given to the group.
Person 1 writes the first step of the solution
process, explaining aloud, and passes the paper
on to Person 2.
Person 2 makes any corrections and adds the
next step, explaining aloud, and passes the paper
on.
Process continues until the problem is
competed.
Hot Potato Team Strategy
Evaluate the expression
Ex2: 21 ÷ 3 + (5-2) - 42
Ex3:
Ex4:
Ex5:
32 +
2
–
7
5●2
2[5 + (30 ÷
6+4
2
3 ●4
2
6) ]
Evaluate the Algebraic Expression

Team Challenge Questions

Write a numerical expression involving
division in which the first step in
evaluating the expression is addition.
Discuss why addition rather than division
is the first step.

Choose three numbers from 1 to 6. Using
each of the numbers exactly once in each
expression, write five expressions that
have different results when they are
evaluated. Justify your choices.
Algebra 1.2
Work must be shown!
HW #13-37 odd, 43,
49-55 odd