Finding the interval then read a thermometer find

• Pick two numbers and subtract them • 60 - 50 = 10

• Pick two numbers and subtract them • 20 - 15 = 5

• Pick two numbers and subtract them • 300 - 250 = 50

• Pick two numbers and subtract them • 40 - 20 = 20

The big numbers which is °F • Pick two numbers and subtract them •

• Celsius • 10 – 0 = 10 degrees • 10 ÷ 5

Now you try • Pick two numbers and subtract them • ____ - _____

Answer • Pick two numbers and subtract them • ____ - _____ = 200

Answer • Pick two numbers and subtract them • ____ - _____ = _20_

Now you try (This one will be less than 1) • Pick two numbers

Answer • 300 – 200 = 100 • 100 ÷ 10 spaces = 10

First find the interval and then the volume • Interval • 15 - 10

First find the interval and then the volume • Interval • 60 – 50

• Interval • 300 – 250 = 50 m. L • 50 m.

Answer ( hard to see sorry) • Interval • 60 – 50 = 10

Answer • Interval • 1250 -1000 = 250 • 250 / 5 = 50

Answer • Interval • 30 -25 = 5 • 5 / 5 spaces =

Try a thermometer • Interval • Temperature

Answer • Interval • 20 -0 = 20 • 20 /10 = 2 degrees

Answer • Interval • 70 -30 = 40 • 40 /4 = 10 •

Answer • Interval • 50 – 40 = 10 • 10 / 5 spaces

Another one • Interval • 10 / 10 spaces = 1 • Volume •

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Finding the interval then… read a thermometer find the volume or read a ruler

• Pick two numbers and subtract them • 60 - 50 = 10 m. L • Then divide by the number of spaces between them • 10 m. L ÷ 10 spaces = 1 m. L • Interval is 1 m. L

• Pick two numbers and subtract them • 20 - 15 = 5 m. L • Then divide by the number of spaces between them • 5 m. L ÷ 5 spaces = 1 m. L • Interval is 1 m. L

• Pick two numbers and subtract them • 300 - 250 = 50 m. L • Then divide by the number of spaces between them • 10 spaces between them • 50 m. L ÷ 10 spaces = 5 m. L • Interval is 5 m. L

• Pick two numbers and subtract them • 40 - 20 = 20 m. L • Then divide by the number of spaces between them • 10 spaces between them • 20 m. L ÷ 10 spaces = 2 m. L • Interval is 2 m. L

The big numbers which is °F • Pick two numbers and subtract them • 300 - 250 = 50° • Then divide by the number of spaces between them • 10 spaces between them • 50° ÷ 10 spaces = 5° • Interval is 5°

• Celsius • 10 – 0 = 10 degrees • 10 ÷ 5 spaces = 2 degrees • Fahrenheit • 80 – 60 = 20 degrees • 20 ÷ 10 spaces = 2 degrees

Now you try • Pick two numbers and subtract them • ____ - _____ = _____ m. L • Then divide by the number of spaces between them • _____ spaces between them • ____ m. L ÷ ___ spaces = ____ m. L • Interval is ______ m. L

Answer • Pick two numbers and subtract them • ____ - _____ = 200 m. L • Then divide by the number of spaces between them • _____ spaces between them • 200 m. L ÷ 10 spaces = 20 m. L • Interval is 20 m. L

Now you try • Pick two numbers and subtract them • ____ - _____ = ____m. L • Then divide by the number of spaces between them • ____m. L ÷ ___ spaces = ___ m. L • Interval is ___ m. L

Answer • Pick two numbers and subtract them • ____ - _____ = _20_ m. L • Then divide by the number of spaces between them • 10 spaces between them • 20 m. L ÷ 10 spaces = 2 m. L • Interval is 2 m. L

Now you try (This one will be less than 1) • Pick two numbers and subtract them • ____ - _____ = ____m. L • Then divide by the number of spaces between them • ____m. L ÷ ___ spaces = ___ m. L • Interval is ___ m. L

Answer (This one will be less than 1) •

Now try with no hints

Answer • 300 – 200 = 100 • 100 ÷ 10 spaces = 10 • Interval is 10

Let’s do it again

Answer •

One more time

Answer • 25 - 20 = 5 • 5 ÷ 5 spaces = 1 • Interval is 1 m. L • If you got stuck, try from the beginning. If you got it, go to the next step.

First find the interval and then the volume • Interval • 15 - 10 • 5 m. L ÷ 5 spaces = 1 • Volume • 18 would be the correct answer because the meniscus(bottom of the water) is 3 lines above the 15 mark and each line is worth 1 m. L

First find the interval and then the volume • Interval • 60 – 50 = 10 m. L • 10 m. L ÷ 10 spaces = 1 • Volume • 52 or 53 would be a correct answer because the meniscus(bottom of the water) is in between 2 and 3 lines above the 50 mark.

• Interval • 300 – 250 = 50 m. L • 50 m. L ÷ 10 spaces = 5 m. L • Volume • Count down from 300, each line is worth 5 • 295 minus a little more • 294, 293, 292 would be acceptable answers

Now you try • Interval • Volume

Answer ( hard to see sorry) • Interval • 60 – 50 = 10 • 10 / 5 spaces = 2 • Volume • One line less than 50 • 48 m. L • Remember here 1 line is = to 2 m. L

Your turn • Interval • Volume

Answer • Interval • 1250 -1000 = 250 • 250 / 5 = 50 • Volume • One line above the 750 • One line = 50 • 750 + 50 = 800 m. L

You got this! • Interval • Volume

Answer • Interval • 30 -25 = 5 • 5 / 5 spaces = 1 • Volume • 1 line above the 20 • 21 m. L or 21. 5 m. L

Try a thermometer • Interval • Temperature

Answer • Interval • 20 -0 = 20 • 20 /10 = 2 degrees • Temperature • One line more than 70 • Each line = 2 • 72°

Anothermometer • Interval • Temperature

Answer • Interval • 70 -30 = 40 • 40 /4 = 10 • • Temperature 1 line = 10 degrees 3 lines more than 30 30 + 10 = 60 or 1 line less than 70 70 -10 = 60

You can do this! • Interval • Volume

Answer • Interval • 50 – 40 = 10 • 10 / 5 spaces = 2 • Volume • One line less than 20 • 20 – 2 = 18 m. L

Another one • Interval • Volume

Another one • Interval • 10 / 10 spaces = 1 • Volume • Three lines above the 40 • 43 m. L