Calculator Lesson TI 30

Calculator Lesson TI 30

By James Hall

WHAT THIS WILL COVER

​Negative Sign VERSUS Minus Sign

​Exponents and Roots

​

Some text here about the topic of discussion

Fraction to Decimal to Percent

​

​

Simplifying Fractions + Improper Fractions

​

Multiple Choice

KEY BUTTONS on the Calculator

The 2nd button allows you use the abilities listed above each button:

What does it say above the PRB button (written in the same color as the 2nd button)?

• F--D

• INS

• R--P

Multiple Choice

KEY BUTTONS on the Calculator

The 2nd button allows you use the abilities listed above each button:

What does it say above the ON button (written in the same color as the 2nd button)?

• EE

• INS

• OFF

Multiple Choice

Type in Minus 3 and do not hit enter

What does the calculator say?

*** Click on the image if you need to know where the minus sign is

• 3

• Ans-3

• -3

Some text here about the topic of discussion

​Ans - 3

​

This means that the calculator is going to take the last answer and subtract 3​

Multiple Choice

Type in 2

then hit enter

Then type MINUS 3

Hit Enter

What do you get?

• -6

• -1

• 0

Some text here about the topic of discussion

You should have gotten -1

​

The calculator stored the 2 you entered.

Then subtracted 3 to get -1​

Multiple Choice

Now type in Negative Sign 3 and do not hit enter

What does the calculator say?

**** Click on the image if you need to see where the negative sign is

• 3

• Ans-3

• -3

Some text here about the topic of discussion

-3

​

This means that the calculator knows we want to input Negative Three​

Minus Sign VS

Negative Sign

Some text here about the topic of discussion

​Unfortunately there is an error in the calculators that confuses the difference between minus and a negative sign.

So... 1) Use Minus between numbers

2) Use the negative sign if you are ​putting a negative number in (parentheses) or starting with a negative number

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

the calculator will simplify fractions for you.

​

Just type the 1) numerator

2) Ab/c button 3) denominator 4) Enter​

​Some text here about the topic of discussion.

Simplifying Fractions

​

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Multiple Choice

What was different about the last answer?

• The fraction did not change

• The fraction changed

If the fraction is already in simplest form, the calculator will not change it

​

Another example: Simplify ​ 7/11

​

Some text here about the topic of discussion

Multiple Select

Try to simplify 27/ 18

• 1 u 1/2

• 1 1/2

• 11/2

• 1 and 1/2

• 101/2

1 u 1/2 is a mixed fraction

​

Another example: Simplify ​ 48/36

​

Some text here about the topic of discussion

the calculator will switch between types of fractions for you.

​

Just type the 1) the Number

2) x^2 button​

​Some text here about the topic of discussion.

Mixed Fraction to Improper Fraction

​

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

the calculator will switch between Fractions and Decimals for you

​

Just type the 1) fraction using the Ab/c Button

2) 2nd Button

3) PRB Button

​Some text here about the topic of discussion.

Fraction -- Decimal

​

Multiple Choice

Enter 5 / 9

Then convert it to a decimal

1) Enter 5/9 Using the Ab/c Button

2) Hit 2nd 3) Hit PRB

Which is the closest to the calculator?

• 0.33333333

• 0.44444444

• 0.555555556

Multiple Choice

Enter 2 / 7

Then convert it to a decimal

1) Enter 2/7 Using the Ab/c Button

2) Hit 2nd 3) Hit PRB

Which is the closest to the calculator?

• 0.428571429

• 0.285714286

• 0.142857143

Multiple Choice

Enter 3 / 11

Then convert it to a decimal

Which is the closest to the calculator?

• 0.2727272727

• 0.454545454545

• 0.818181818181

the calculator will square a number, and find the square root of a number

​

Just type the 1) fraction using the Ab/c Button

2) 2nd Button

3) PRB Button

​Some text here about the topic of discussion.

Squares & Square Roots

​

Multiple Choice

Find 3^2

• 6

• 9

• 0.818181818181

WHAT THIS WILL COVER

Carat symbol and Higher powers and roots

Parentheses

​

​

Some text here about the topic of discussion

Rounding

​

​

Arrows

​

​

WHAT THIS WILL COVER

Probability notation?

e^x ln?

​

Some text here about the topic of discussion

sin cos tan

​

​

sci/eng mode

​

​

syntax errors

​

​

​