Lemonade Stand
This presentation is the property of its rightful owner.
Sponsored Links
1 / 17

Lemonade Stand A Variables Lesson Written by Vicente Huerta PowerPoint PPT Presentation


  • 55 Views
  • Uploaded on
  • Presentation posted in: General

Lemonade Stand A Variables Lesson Written by Vicente Huerta. Objectives: TEK Math 6th Grade (6.5)  Patterns, relationships, and algebraic thinking. The student uses letters to represent an unknown in an equation.

Download Presentation

Lemonade Stand A Variables Lesson Written by Vicente Huerta

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Lemonade stand a variables lesson written by vicente huerta

Lemonade Stand

A Variables Lesson

Written by Vicente Huerta


Lemonade stand a variables lesson written by vicente huerta

Objectives:

TEK Math 6th Grade

(6.5)  Patterns, relationships, and algebraic thinking. The student uses letters to represent an unknown in an equation.

The student is expected to formulate equations from problem situations described by linear relationships.


Lemonade stand a variables lesson written by vicente huerta

Day 1


Lemonade stand a variables lesson written by vicente huerta

Howdy! How much for a cup of that lemonade you have there?

Oh.. I don’t know. How about a dollar?

A dollar? No thanks.. I suppose I’m not that thirsty


Lemonade stand a variables lesson written by vicente huerta

<Larry>: Cousin! How was business!?

<Stan>: Not so hot. I spent more on supplies than what I made…


Lemonade stand a variables lesson written by vicente huerta

<Larry>: Wait.. Did you use variables like I told you?

<Stan>: Not so hot. I spent more on supplies than what I made…


Lemonade stand a variables lesson written by vicente huerta

<Larry>: Wait.. Did you use variables like I told you?

<Stan>: I forgot to. Can you run it by me again?


Lemonade stand a variables lesson written by vicente huerta

<Larry>: Sure thing!

<Stan>: I forgot to. Can you run it by me again?


Lemonade stand a variables lesson written by vicente huerta

<Larry>: A variable is a quantity or function that may assume any given value or set of values.

<Larry>: That’s not all! You can set up variables with constants in an equation to figure out your cost and minimum price in order to cover cost!

<Larry>: This can be a letter such as X or Y, any letter for that matter.


Lemonade stand a variables lesson written by vicente huerta

<Larry>: Note that supply price is constant and total cost is a variable (X). Why? Because normally we do not know the total cost until we purchase our supplies. You can assign variables to unknowns. However, we do not control the price of our supplies and therefore it is a constant.

<Larry>: So you spent $20.00 on (A) sugar, (B) cups, (C) ice, and (D) lemons.

A(Price)+B(Price)+C(Price)+(Price)D=Total Cost


Lemonade stand a variables lesson written by vicente huerta

<Stan>: I bought 60 cups, 4 bags of sugar, 20 lemons, and 2 bags of ice.

60($0.10)+4($2.00)+20($0.10)+2($2.00) = Total Cost = X =$20.00

This is easier than I thought!


Lemonade stand a variables lesson written by vicente huerta

<Stan>:

I get it! So let me apply variables to cost and price. I need to cover my cost so I will assign the letter Y as my minimum price, my variable since its unknown.

(Total Cost)/(Number of Lemonade Cups I can make)= (Price) or

$20.00/60 =Price=Y = $0.33!!!!

I will try $0.40. My profit eq. is (Price)-(Minimum Price)= (Profit) or Z

0.40-0.33= .07 = Z


Lemonade stand a variables lesson written by vicente huerta

Day 2


Lemonade stand a variables lesson written by vicente huerta

Argh! How much for a cup of that lemonade you have there?

Only 40 cents please!

Hmm.. Sounds fair young lad! Thank you!


Lemonade stand a variables lesson written by vicente huerta

Written by Vicente Huerta

TEK Math 6th Grade

(6.5)  Patterns, relationships, and algebraic thinking. The student uses letters to represent an unknown in an equation.

The student is expected to formulate equations from problem situations described by linear relationships.

ClipArt by www.millan.net

Music by www.freeplaymusic.com


  • Login