Scaled Instruments

Accurately Reading Them

What are They?• A device that has ordered markings at an equal distance from each other.

• Used for measurement

Examples

Reading Them•Look closely.•Don’t Rush.

Reading Scales

The key to Success.

Formula for Success

Value of Each line =

JUMP divided by # of SPACES

JUMP #of SPACES = Value of Line

What’s a “Jump”Jump is the value between the NUMBERS on the scale.

JUMP Jump = 5

“How much do the numbers count up by?”

What’s “# of Spaces?”# of spaces can be found by counting spaces between NUMBERS.Spaces #of Spaces =5

To The Formula

JUMP = 5#of SPACES = 5

JUMP #of SPACES

55

= = 1

Value of Each Line is 1

Now you can find the value of any line.

12 34 9 13

A Little Practice

10 20 30

JUMP = ??

#of Spaces = ??

10____10

= 1

14 27

Let’s Review“JUMP” is the value between the printed numbers.

“#of Spaces” is the number of spaces you count between the printed numbers.

Let’s ReviewFormula for success is:

JUMP #of SPACES

Off to the Lab

Bring a Calculator