Valentine
One Step Equation
Math
All the Math you will do for Love
Valentine’s Math
What is the goal when solving an
equation?
To get x by itself
or
To isolate the variable (unknown)
Valentine’s Math
What two rules must we remember?
1) Equations must be in balance:
whatever you do to one side, you must
do to the other.
2) To solve equations, perform the
opposite operation
Problem One:
Cookie crazy
Ms. Guillory loves Valentines Day. She decides to make 5
dozen cookies to bring to school. The next morning, she finds
the plate of cookies on the floor with a very guilty looking
puppy in the kitchen. There are only 8 cookies left. How many
cookies did Ms. G’s puppy eat?
4
Problem Two:
A heel dilemma
You are picking out an outfit for your Valentine's date. What heel should you go
for? If your date is 6-foot tall and your height is 5-foot-7, how high should your
heel be for you to dance shoulder-to-shoulder with your date?
Problem Two:
A heel dilemma
You are picking out an outfit for your Valentine's date. What heel should you go for?
If your date is 6-foot tall and your height is 5-foot-7, how high should your heel be
for you to dance shoulder-to-shoulder with your date?
Let’s Solve this Problem by Writing an Equation:
1)
2)
3)
4)
Define the variable
Write equation
Solve and check
State solution as a sentence
Problem Three: Sweet Gifts
Valentine’s day is coming up and you get your special friend a box of delicious
chocolate hearts. You are so in love that you don’t even look at the price. You
give the cashier $20.00 and she gives you back $4.64. How much did you pay
for your box of chocolate?
Problem Four:
Write your own
Write a Valentine’s word problem using addition or subtraction:
1.
2.
3.
4.
5.
Write the word problem.
Define the variable (unknown)
Write the algebraic equation.
Solve and check.
Write your answer in a complete sentence.