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CATHY JONES Math Specialist Center for Mathematics and Science Education Arkansas NASA Education Resource Center 346 N. West Avenue, Room 202 Fayetteville, Arkansas 72701 Office: (479 ) 575-3875 Cell: (479) 209-0070 E-mail : [email protected] Web: Cmasemath.pbworks.com.

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Ole build our own tostadas

CATHY JONES

Math Specialist

Center for Mathematics and Science Education

Arkansas NASA Education Resource Center

346 N. West Avenue, Room 202

Fayetteville, Arkansas 72701

Office: (479) 575-3875

Cell: (479) 209-0070

E-mail: [email protected]

Web: Cmasemath.pbworks.com

OLE! Build Our Own TOSTADAS!

Adapted from GEMS Math on the Menu & present by:

Tortilla, beans & cheese only, please!

  • Standards:

  • CCSS 5.NBT.7, 5.NBT.3b

  • Supplies: (See pages 4-9 for management ideas)

  • Hand out pages

  • Scissors

  • Glue stick

  • Large paper for posters

  • Pictures or die cut items (optional)

  • Pencil

  • Calculator (optional)


Ole build our own tostadas1

OLE! Build Our Own TOSTADAS!

Tortilla

Cheese

Tortilla, beans & cheese only, please!

Beans

Other toppings available. What would you choose?

Salsa

Lettuce

Olives


A nearby restaurant advertises BUILD YOUR OWN TOSTADAS! You and your friends decided to order. Two of you took their orders and they each gave you some money.

You wrote down everyone’s order very carefully, everyone had three items on their tostada, but no one’s order was alike. You gave the cashier the list of orders , paid for each one separately and wanted to make sure everyone was charged correctly. You realized that they had charged the same amount for some of the orders. You no longer had your list of orders so you had to “re-create” the list.

They had the options and prices posted on the wall. Use the chart below and see if it is possible to have different Tostadas, but still pay the same price as someone else?

Olives:

75 cents

Tortilla: 50 cents

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

$2.95

$2.55

$2.85

$2.75

$2.95

$2.35

$2.75

$2.45

$2.45

$2.85

Salsa:

65 cents

Beans:

65 cents

Cheese:

$1.05

Lettuce:

55 cents


  • If students are doing this activity and have pictures or cutouts to make the Tostadas on a poster, then PRINT the next slide only!

  • It can be cut apart horizontally and will be for 2 posters.

  • The small cards can just be moved around when they are looking at the possible combinations. They do not need to be placed on the poster.

  • When the students make their poster, have them write the price of the tostada under the picture. Use the >, < or = symbol to compare to the price next to it.


Standards: cutouts to make the Tostadas on a poster, then PRINT the next slide only!

CCSS 5.NBT.7, 5.NBT.3b

Name(s): ___________________________________

Tortilla: 50 cents

Olives:

75 cents

Beans:

65 cents

Cheese:

$1.05

Salsa:

65 cents

Lettuce:

55 cents

Standards:

CCSS 5.NBT.7, 5.NBT.3b

Name(s): ___________________________________

Tortilla: 50 cents

Olives:

75 cents

Beans:

65 cents

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

$2.95

$2.95

$2.85

$2.55

$2.55

$2.85

$2.85

$2.75

$2.75

$2.95

$2.95

$2.35

$2.35

$2.75

$2.75

$2.45

$2.45

$2.85

$2.45

$2.45

Lettuce:

55 cents

Cheese:

$1.05

Salsa:

65 cents


  • If students are doing this activity and DO NOT have pictures or cutouts to make the Tostadas on a poster, then PRINT the next slide only!

  • The small cards can be cut apart and grouped for each of the TOSTADA combinations.

  • You will need one page for each poster.

  • Fill in the chart and place them all on a poster.


.50 or cutouts to make the Tostadas on a poster, then PRINT the next slide only!

$2.85

Beans:

65 cents

Lettuce:

55 cents

Beans:

65 cents

.50

Lettuce:

55 cents

Beans:

65 cents

Lettuce:

55 cents

$2.45

.50

$2.95

.50

Standards:

CCSS 5.NBT.7, 5.NBT.3b

$2.75

Tortilla:

50 cents

Olives:

75 cents

Tortilla:

50 cents

Olives:

75 cents

Tortilla:

50 cents

Olives:

75 cents

.50

$2.45

.50

$2.55

.50

$2.35

Salsa:

65 cents

Salsa:

65 cents

Salsa:

65 cents

Cheese:

$1.05

Cheese:

$1.05

Cheese:

$1.05

.50

$2.95

.50

$2.85

.50

Name(s): ___________________________________

$2.75

Beans:

65 cents

Lettuce:

55 cents

Beans:

65 cents

Lettuce:

55 cents

Beans:

65 cents

Lettuce:

55 cents

.50

Tortilla:

50 cents

Olives:

75 cents

Tortilla:

50 cents

Olives:

75 cents

Tortilla:

50 cents

Olives:

75 cents

Salsa:

65 cents

Salsa:

65 cents

Salsa:

65 cents

Cheese:

$1.05

Cheese:

$1.05

Cheese:

$1.05

Tortilla:

50 cents

Tortilla:

50 cents

Tortilla:

50 cents

Tortilla:

50 cents



Standards: next slide only.

CCSS 5.NBT.7, 5.NBT.3b

Name: _________________________________

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

$2.95

$2.55

$2.75

$2.85

$2.35

$2.45

$2.95

$2.45

$2.75

$2.85


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