Texas Instruments TI-34 II Teachers Guide - Page 41

additional material. Multiply the cost per yard by the additional yardage

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Sewing Costumes- Fractions Name Date Problem You are sewing costumes for a dance festival. Each costume takes 2 3/8 yards of material. You have 23 yards of material to make 14 costumes. Do you have enough? If you do, do you have any extra? How much? Do you need more? How much? Procedure 1. Using the TI-34 Ö, compute how many yards of material are needed for the costumes by multiplying the amount needed for each costume by the number of costumes. Total yardage needed for 14 costumes: Do you have enough? 2. Find out how much more you need by subtracting the amount of material you have from the total amount needed. Additional amount of material needed: 3. If the material costs $3.98 per yard, find out how much it will cost to buy the additional material. (Multiply the cost per yard by the additional yardage needed.) Cost to buy additional material: $ 4. Determine how many costumes you could make with the material you have by dividing the yardage you have by the amount needed for each costume. Number of costumes with material on hand: 5. If each costume required only 1 2/3 yards, determine if you would have enough material to make the 14 costumes. Do you have enough? Extension If you wanted to make a shirt or other item, find out how much material it would take, and figure out how much material would be needed to make matching shirts for everyone in the class. How much would it cost to make shirts for the class? © 1999 TEXAS INSTRUMENTS INCORPORATED TI-34 Û: A Guide for Teachers 35

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© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-34
Û
: A Guide for Teachers
35
Sewing Costumes—
Fractions
Name
___________________________
Date
___________________________
Problem
You are sewing costumes for a dance festival. Each costume takes 2
3
/
8
yards
of material. You
have 23 yards of material to make 14 costumes. Do you have
enough? If you do, do you have any extra? How much? Do you need more?
How much?
Procedure
1.
Using the TI
-
34
Ö
, compute how many yards of material are needed for the
costumes by multiplying the amount needed for each costume by the number
of costumes.
Total yardage needed for 14 costumes:
Do you have enough?
2.
Find out how much more you need by subtracting the amount of material you
have from the total amount needed.
Additional amount of material needed:
3.
If the material costs $3.98 per yard, find out how much it will cost to buy the
additional material. (Multiply the cost per yard by the additional yardage
needed.)
Cost to buy additional material: $
4.
Determine how many costumes you could make with the material you have by
dividing the yardage you have by the amount needed for each costume.
Number of costumes with material on hand:
5.
If each costume required only 1
2
/
3
yards, determine if you would have enough
material to make the 14 costumes. Do you have enough?
Extension
If you wanted to make a shirt or other item, find out how much material it
would take, and figure out how much material would be needed to make
matching shirts for everyone in the class. How much would it cost to make
shirts for the class?