6.EE_.B.6 Using variables to represent numbers & write expressions

advertisement
6.EE.B.6: Reason about and solve one-variable equations and inequalities.
TEACHER: Terri Pemberton
SUBJECT: 6th Grade Math
STANDARD: 6.EE.B.6 - Use variables to represent numbers and write expressions when solving a realworld or mathematical problem; understand that a variable can represent an unknown number, or,
depending on the purpose at hand, any number in a specified set.
STUDENT TARGET:
Use a variable to write an algebraic expression that represents a real-world situation when a specific
number is unknown.
Explain and give examples of how a variable can represent a single unknown number or can represent any
number in a specified set.
EVIDENCE OF MASTERY (MEASURABLE):
SUB-OBJECTIVES: SWBAT use a variable to write an algebraic expression that represents a real-world
situation.
KEY VOCABULARY: variable, constant algebraic
expression
MATERIALS:
15 copies of matching game handout
http://www.engageny.org/sites/default/files/r
esource/attachments/math-g6-m4-teachermaterials.pdf pgs 257-258
15 baggies (1 per group)
Scissors (1 per student)
DURING
BEFORE
ENGAGE (MAKE CONTENT AND LEARNING RELEVANT TO REAL LIFE AND CONNECT TO STUDENT
INTEREST)
TEACHER WILL:
STUDENT WILL:
Ask students to brainstorm, as a review, the
Brainstorm the meaning of variable, constant
meaning of variable, constant and algebraic
and algebraic expression and be ready to share
expression.
with the class.
Show students the following algebraic
T-P-S what the equation x + 4 =100 could
expression and ask them to T-P-S what they
represent in a real-world situation.
think each term could represents. x + 4 = 100.
TEACHER WILL:
Hand out copies of matching game, baggie and
scissors to each pair of students. (do this only
with the first group of students, then use for the
rest of the blocks)
Instruct students to cut out game pieces and
begin matching the equation to the solution.
Tell students that they will need to create a
real-world scenario for each equation and be
prepared to share with the class.
STUDENT WILL:
Cut out game pieces and begin matching the
equation to the solution.
With partner, using words, create a real-world
scenario in which each equation could be used
and be ready to share with the class.
AFTER
6.EE.B.6: Reason about and solve one-variable equations and inequalities.
TEACHER WILL:
Bring students back together and ask them to
share some of their real-world scenarios.
Handout “Pandas Pizza Place” worksheet
(attached) and tell students to create an
equation for each word problem. Tell them
they also have to create an additional equation
for a scenario that has not been given.
STUDENT WILL:
Share some of their real-world scenarios.
Complete “Pandas Pizza Place” worksheet.
6.EE.B.6: Reason about and solve one-variable equations and inequalities.
Name:
Date:
Class:
“Pandas Pizza Place”
Slice of pepperni pizza
$3.50
Slice of cheese pizza
$3.00
Large soda
$1.50
Garden Salad
$4.00
Large 1-cheese pizza
$9.00
Medium 1-cheese pizza
$7.50
Each additional topping
$1.00
Ice cream ( 2-scoops)
$2.50
1) Suzy and her family purchased a large pepperoni and mushroom pizza that
cost her $10.80 including tax. Which equation can be used to find out how
much she spent on tax (t)? ______________________________________
Now, solve your equation. t = ______
2) Denise ordered 3 medium cheese pizzas for her retirement party. Each pizza
has 6 slices. Denise and each of her guests received 3 slices of pizza. Write an
equation to find out how many guests (g) attended Denise’s party?
__________________________________________________________
Number of guests that attended the party, g = ________
3) Steven paid for a slice of cheese pizza, a soda, and a Ice cream for lunch
including tax for a total of $7.56. Steven received $2.44 in change from the
cashier. Which equation can be used to find how much money (m) Steven gave
the cashier to pay for his lunch? _________________________________
How much money did Steven give the cashier? m=______
4) My scenario and equation: ___________________________________
_________________________________________________________
_________________________________________________________
6.EE.B.6: Reason about and solve one-variable equations and inequalities.
Download