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# Factor-Label Method Practice - PowerPoint PPT Presentation

Factor-Label Method Practice. Drill # 13 9/11/2014. Write drill # 13 and the date in your notebook Copy the questions (they are on the right side of the board) Answer 7 minutes, everyone is quiet and in her/his seat. Topic: Factor-Label Method Practice.

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### Factor-Label Method Practice

Drill # 139/11/2014

• Write drill # 13 and the date in your notebook

• Copy the questions (they are on the right side of the board)

• 7 minutes, everyone is quiet and in her/his seat

Topic: Factor-Label Method Practice

Objective: Students will be able to

• Apply the factor-label method to change units of measurement

HW #10: Get worksheet

English-Metric

Metric-Metric

• 1 inch = 2.5 cm

• 1 lb = 0.45 kg

• 1 mile =1600 m

• 1 m = 100 cm

• 1 m = 1000 mm

• 1 m = 1000 000 μm

• 1 cm = 10 mm

• 1 km = 1000 m

• 1 L = 1000 mL

• 1 kg = 1000 g

• Make a fraction from the equivalence statement

• One side goes on top of the other

• There are two factor-labels for each equivalence statement

• Both equal 1 (one as the number)

• Example:

1 inchor2.5 cm

2.5 cm1 inch

• Multiply the quantity you know by one of the factor-labels

• Which one?

• The one that will help you cancel the unit you are trying to get rid of

• example

• 30 inches to cm

• 30inch x 2.5cm / 1inch

• 30inch x 2.5cm / 1inch

• 30 x 2.5 /1 cm = 75 cm

Guided Practice – 5 problems 20 minutes, timed

• Use inside voices

• Be nice

• Use a calculator

• Solve the problem on the right screen together

• Everyone writes on her/his own paper

• Team recorder writes the complete solution on your white board

• Hold up your board when time is called

• Make corrections if needed

• Make sure that everyone in the group understands how to do the problems

Individual Practice-Work quietly for 20 minutes on your own

• Read “Time and Length” section (3-page packet

• Do not write on the handout (I have to use it again today)

• Take Cornell notes on your own paper

• Read one paragraph at a time

• Write the main idea

• Include 1-2 details

• Move to the next paragraph

Is same as conversion factor

Objective: Students will be able to

• Apply the factor-label method to change units of measurement

You get a second chance to complete the HW from yesterday for full credit

Quiz tomorrow

• Units of measurement

• Factor-label conversions

• ID#, in your seat, and quiet

• Questions:

• Convert 75 m to km. Show the factor labels!

• Convert 48 km to m. Show the factor labels!