TI-nspire help and documentation

The latest versions of TI-nspire reference and guidebooks can be found by following this link.

(There is a lot of overlap among the various books.)

I recommend watching the the TI-nspire animated movies that you’ll find at the Atomic Learning website. All of the tutorials on the page I’m pointing to are free. Atomic Learning also has other material covering a wide variety of computer software. Check to see if your school or library has a subscription that you can use.

Another good place to explore is TI’s Activities Exchange. When searching this collection, I would suggest selecting the checkbox next to “TI-Nspire™” in the device section. Have fun!

homework due Tuesday, 7/22

section 6.7:  7-16 all, 25, 29, 31, 33

to prepare for the test tomorrow, be sure that you have completed your angle chart and checked its correctness; you may also wish to complete the review and self-test available on ALEKS (without using your chart)

updated TI-nspire software

On July 9th, Texas Instruments released version 1.4 of the TI-nspire software. Improvements include the following features and functionality:

• New categorical data plots (pie and bar charts)
• New data collection capabilities including EasyLink and GoLink compatibility
• Creation of slider bars to easily adjust variable values
• Enhanced menus with new options added where you would expect them
• Easier editing of programs
• Compatibility with Mac® OS

If you are still using version 1.3, I suggest upgrading. The bitwise can jump to TI’s download page.

To check your OS version, press [Home], [8:System Info], [4:About]. The current version is “1.4.11643 2008-07-09″.

If you need help upgrading, talk to me during homework time; and I’ll show you how.

Be sure to save any documents and problems you want to retain before performing any upgrades!

homework for the weekend, 7/19-20

Groups 1 and 2

ALEKS homework assessment #7 is open all weekend. It is not timed so if you did not finish Friday get it done this weekend. Some of you are still behind in your hours devoted to working on your “pie”. (Some still have less than 15 hours!). In order to be successful in this course requires that you work in the learning mode in ALEKS outside of class. ALEKS is available in the Fenn Tower computer lab during the week and onweekends you can do this from home.

Please do all graphing in radians and show at least one complete period for the function.

Section 6.6:  19, 21, 25, 27, 33, 35, 37, 43, 45, 47-56 all, 65, 75

EXTRA CREDIT, You need to write this out in complete sentences. Due date Weds, 7-23

1. Explain how the amplitude and period of a sinusoidal graph are used to establish the scale on each coordinate axis.
2. Explain how you would scale the x axis and y axis before graphing
   y = 3 cos(Πx).

Group 3

Most of you are on target in the learning mode with ALEKS. Just be sure that you keep up with the set pace of the course.

Section 6.6:  47-56 all, 65, 67, 69, 71, 75, 77, 91

EXTRA CREDIT, You need to write this out in complete sentences. Due date Weds, 7-23

1. Explain how the amplitude and period of a sinusoidal graph are used to establish the scale on each coordinate axis.
2. Explain how you would scale the x axis and y axis before graphing
   y = 3 cos(Πx).

homework due Friday, 7/18

Group 1

Section 6.4: 17, 19, 21, 29, 31, 33, 39, 41, 47, 53, 55, 59-87 every other odd, 91
Section 6.5: 9, 13, 17, 21, 25, 29, 33, 37, 42, 47, 51, 55, 57

Group 2

Section 6.4: 17, 19, 21, 29, 31, 33, 39, 41, 47, 53, 55, 59-87 every other odd, 91
Section 6.5: 9, 13, 17, 21, 25, 29, 33, 37, 42, 47, 51, 56, 58, 60

Group 3

Section 6.4: 58, 82, 88, 89-113 odds
Section 6.5: 73-91 odds

homework due Thursday, 7/17

Group 1

Section 6.2:  1-35 odds, 39, 45, 55
Section 6.3:  7-27 odds, 29, 35, 41

Group 2

Section 6.2:  1-35 every other odd, 37-51 odds, 55, 57, 69
Section 6.3:  8-28 even, 29, 35, 41, 47

Group 3

Section 6.2:  23, 35, 55-65 odds, 69, 70, 73, 75
Section 6.3:  34, 40, 46, 47, 51, 53

application assignment #8

Group 1

section 6.3:  49, 65

Group 2

section 6.2:  67
section 6.3:  67

Group 3

section 6.2:  72

homework due Wednesday, 7/16

section 6.1: 1-5 all, 15-90 multiples of 5, 95, 97, 99, 103, 110, 113

application assignment #7, plus

p587:  #29 (see below)

p608:  #95, 97, 101, 108, 113; & waiting time problem (further below)

and, for Thursday/Friday, “The Coroner” problem

#29. Product Design

An entrepreneur is having a design group produce at least six samples of a new kind of fastener that he wants to market. It costs $9.00 to produce each metal fastener and $4.00 to produce each plastic fastener. He wants to have at least two of each version of the fastener and needs to have all the samples 24 hours from now. It takes 4 hours to produce each metal sample and 2 hours to produce each plastic sample. To minimize the cost of the samples, how many of each kind should the entrepreneur order? What will be the cost of the samples?

The Waiting Time Problem

Katie and Brian are newly-weds (as of this Saturday) and now have to learn how to share the one bathroom in their house. This could be a problem for them since they each lived by themselves prior to getting married.
They want to figure out the probablity that one of them will have to wait to use the bathroom in the morning if they each get up randomly between 7 and 8 in the morning. Katie needs 20 minutes in the bathroom and Brian needs 10 minutes.
What is the probablity that one of them will have to wait for the other to get out of the bathroom if they randomly get-up up each morning between 7 & 8 am?

application assignment #6

section 5.1:  57, 61, 63, 75, 81

(also due 7/15)