Texas Instruments TI-30X - IIS Scientific Calculator Manual de usuario

TI-30XÚ

AGuideforTeachers

Developed by

Texas Instruments Incorporated

Activities developed by

Gary Hanson and Aletha Paskett

Illustrated by

Jay Garrison

About the Authors

GaryHanson

and

AlethaPaskett

aremathteachersintheJordanIndependentSchoolDistrict

inSandy,Utah.TheydevelopedtheActivitiessectionandassisted inevaluatingthe

appropriatenessoftheexamplesintheHowtoUsethe TI-30X Ù

Ssectionofthisguide.

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merchantability and fitness for a particular purpose, regarding any programs or book materials and makes such materials available

solely on an as-is basis. In no event shall Texas Instruments be liable to anyone for special, collateral, incidental, or consequential

damages in connection with or arising out of the purchase or use of these materials, and the sole and exclusive liability of Texas

Instruments, regardless of the form of action, shall not exceed the purchase price of this book. Moreover, Texas Instruments shall

not be liable for any claim of any kind whatsoever against the use of these materials by any other party.

Note: Using calculators other than the TI-30X IIS may produce results different from those described in these materials.

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About the Teacher Guide 

How the Teacher Guide is Organized

This guide consists of two sections: Activities

and How to Use the TI-30X ÙS. The Activities

section is a collection of activities for

integrating the TI-30X ÙS into mathematics

instruction. The How To Use the TI-30X ÙS

section is designed to help you teach students

how to use the calculator.

Activities

The activities are designed to be teacher-

directed. They are intended to help develop

mathematical concepts while incorporating the

TI-30X ÙS as a teaching tool. Each activity is

self-contained and includes the following:

• An overview of the mathematical purpose

of the activity.

• The mathematical concepts being

developed.

• The materials needed to perform the

activity.

• The detailed procedure, including step-by-

step TI-30X ÙS key presses.

• A student activity sheet.

How to Use the TI-30X ÚS

This section contains examples on

transparency masters. Chapters are numbered

and include the following.

• An introductory page describing the

calculator keys presented in the example,

the location of those keys on the

TI-30X ÙS, and any pertinent notes about

their functions.

• Transparency masters following the

introductory page and providing examples

of practical applications of the key(s) being

discussed. The key(s) being discussed are

circled on the TI-30X ÙS keyboard.

Things to Keep in Mind

• While many of the examples on the

transparency masters may be used to

develop mathematical concepts, they were

not designed specifically for that purpose.

• For maximum flexibility, each example and

activity is independent of the others.

Select the transparency master

appropriate for the key you are teaching, or

select the activity appropriate for the

mathematical concept you are teaching.

• If an example does not seem appropriate

for your curriculum or grade level, use it to

teach the function of a key (or keys), and

then provide relevant examples of your own.

• To ensure that everyone starts at the

same point, have students reset the

calculator by pressing &and -

simultaneously or by pressing %

and then selecting Y(yes).

Conventions Used in the Teacher Guide

• In the text, brackets [ ] around a key’s

symbol/name indicate that the key is a

second, or alternate, function.

For example: Z

• On the transparency masters, second

functions are shown just as they appear on

the keyboard.

For example: 

How to Order Additional Teacher Guides

To place an order or to request information

about Texas Instruments (TI) calculators,

use our e-mail address: [email protected]

visit our TI calculator home page: www.ti.com/calc

or, call our toll-free number:

1.800.TI.CARES (1.800.842.2737)

Table of Contents 

About the Authors

About the Teacher Guide

iii

About the TI-30X

Activities

The Better Batter

—

Using the FIX Key

Star Voyage

—

Using Scientific Notation

Trig Functions

What’s My Score

—

1-Variable Statistics

Heart Rates

—

1-Variable Statistics

WNBA

Stats

—

2-Variable Statistics

How to Use the TI-30X Ú

TI-30X Ö

S Basic Operations

Clear, Insert, and Delete

Basic Math

Order of Operations and

Parentheses

Constant

Decimals and Decimal Places

Memory

Fractions

Powers, Roots, and Reciprocals

Probability

Statistics

Trigonometry

How to Use the TI-30X Ú

(continued)(continued)

Notation

Logarithms and Antilogarithms

Angle Settings and Conversions

Polar and Rectangular Conversions

Hyperbolics

100

Appendix A

A-1

Quick Reference to Keys

Appendix B

B-1

Display Indicators

Appendix C

C-1

Error Messages

Appendix D

D-1

Support and Service Information

Appendix E

E-1

Warranty Information

The Better Batter —

The FIX Key 2

Star Voyage —

Scientific Notation 6

Trig Functions 10

What’s My Score? —

1-Variable Statistics 14

Heart Rates —

1-Variable Statistics 17

WNBA Stats —

2-Variable Statistics 23

Activities

The Better Batter — The FIX Key

Overview

Students use %‚on the TI-30X ÙS to change

numbers to different place values. Students

calculate batting averages using the TI-30X ÙS and

then round their answers to three decimal places.

Math Concepts

• rounding

• place value

• division

• comparing and

ordering decimals

Materials

• TI-30X ÙS

• pencil

• student

activity

Introduction

1. Have students practice rounding the following

numbers to 3 decimal places using pencil and

paper.

a. 2.35647 2.356

b. 15.3633 15.363

c. 0.02698 0.027

2. Have students round the following numbers to 4

decimal places using the TI-30X ÙS.

a. 4.39865 4.3987

b. 72.965912 72.9659

c. 0.29516 0.2952

d. 0.00395 0.0040

Activity

Present the following problem to students:

You are going to play Virtual Baseball. You need to

select 9 players from the list to be on your team.

Choose the players with the best batting averages.

Find the batting averages (number of hits

number

of times at bat) rounded to 3 decimal places for each

player. Make a list of your players in order, from

highest to lowest.

See the table on the next page for solutions.

³1. Enter the first number.

4.39865

2. Press %‚to display

the menu that lets you set

the number of decimal

places.

F0123456789

3. Press 4to select 4

decimal places.

4.39865

4. Press <.

4.39865

4.3987

The Better Batter — The FIX Key (Continued)

Player Number of

Hits

Number of

Times at Bat

Batting

Average

C. Ripken 122 368 0.332

Puckett 119 363 0.328

Molitor 119 364 0.327

Greenwell 104 334 0.311

Tartabull 103 311 0.331

Palmeiro 120 366 0.328

Franco 109 344 0.317

Joyner 105 338 0.311

Boggs 106 329 0.322

Baines 91 290 0.314

Sax 113 388 0.291

Williams 20 74 0.270

Sheridan 15 63 0.238

Barfield 64 284 0.225

Mattingly 109 367 0.297

Hall 87 280 0.311

The Better Batter —

The FIX Key

Name ___________________________

Date ___________________________

Problems

1. Round the following numbers to 3 decimal places.

a. 2.35647 _________________

b. 15.3633 _________________

c. 0.02698 _________________

2. Using the TI-30X ÙS, round the following numbers to 4 decimal places.

a. 4.39865 _________________

b. 72.965912 _________________

c. 0.29516 _________________

d. 0.00395 _________________

The Better Batter —

The FIX Key

Name ___________________________

Date ___________________________

Problem

You are going to play Virtual Baseball. You need to select 9 players from the list to

be on your team. Choose the players with the best batting averages.

Procedure

1. Find the batting averages (number of hits ¾number of times at bat) rounded to

3 decimal places for each player.

Player Number of Hits Number of

Times at Bat

Batting Average

(rounded to 3 decimal places)

C. Ripken 122 368

Puckett 119 363

Molitor 119 364

Greenwell 104 334

Tartabull 103 311

Palmeiro 120 366

Franco 109 344

Joyner 105 338

Boggs 106 329

Baines 91 290

Sax 113 388

Williams 20 74

Sheridan 15 63

Barfield 64 284

Mattingly 109 367

Hall 87 280

2. Make a list of your players in order, from highest to lowest.

Player 1 ____________________ Player 6 ____________________

Player 2 ____________________ Player 7 ____________________

Player 3 ____________________ Player 8 ____________________

Player 4 ____________________ Player 9 ____________________

Player 5 ____________________

Star Voyage — Scientific Notation

Overview

Students investigate scientific notation by changing

numbers into scientific notation, and then using

them in calculations.

Math Concepts

• scientific

notation

• addition

• division

Materials

• TI-30X ÙS

• pencil

• student activity

Introduction

Set up the activity by telling your students:

The standard form for scientific notation is a Q10n,

where ais greater than or equal to 1 and less than

10, and nis an integer.

1. Have students practice writing the following

numbers in scientific notation using pencil and

paper.

a. 93 000 000 9.3 Q107

b. 384 000 000 000 3.84 Q1011

c. 0.00000000000234 2.34 Q10-12

d. 0.0000000157 1.57 Q10-8

2. Have students change the following numbers into

scientific notation using the TI-30X ÖS.

a. 12 000 000 1.2 Q107

b. 974 000 000 9.74 Q108

c. 0.0000034 3.4 Q10-6

d. 0.000000004 4 Q10-9

Note: Answers assume the default floating decimal

setting.

1. Enter the first number.

12000000

2. Press %d.

FLO SCI ENG

3. Press "<<.

12000000

1.2x1007

4. Now, just type the next

number and press <.

3. Have students change the following numbers into

floating decimal (standard notation).

a. 5.8 Q10758 000 000

b. 7.32 Q105732 000

c. 6.2 Q10-6 0.0000062

d. 3 Q10-8 0.00000003

Note: To enter a negative number, press Mand then

enter the number.

³1. Enter 5.8; press %C.

5.8¯

2. Enter 7;press %d.

FLO SCI ENG

3. Press !.

FLO SCI ENG

4. Press <<.

5.8¯7

58000000.

5. Type the next number and

press <.

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