DecimalsDecimals

Read, Write, Compare and Read, Write, Compare and Order DecimalsOrder Decimals

Objectives:Objectives:• Students will demonstrate place value up to Students will demonstrate place value up to

hundredths, both pictorially and concretely hundredths, both pictorially and concretely (using manipulatives) and on a number line. (using manipulatives) and on a number line.

• Students will create a picture showing the Students will create a picture showing the relationship between decimals and pictures relationship between decimals and pictures representing decimals.representing decimals.

Language Objective: Language Objective: • Students will read and write decimals in Students will read and write decimals in tenthstenths and and hundredths.hundredths.

Why do decimals matter? Why do decimals matter? • Michael Phelps- Michael Phelps- Bejing Olympics, 2008Bejing Olympics, 2008• Lolo Jones- Lolo Jones- 60m hurdles60m hurdles• Tyson Gay- Tyson Gay- 9.68 100m9.68 100m• Men’s 200m BackstrokeMen’s 200m Backstroke• Women’s 100m dashWomen’s 100m dash• Women’s 100m freestyle finalWomen’s 100m freestyle final• 2012 Paralympic Games2012 Paralympic Games

Who Won? How do you know?Who Won? How do you know?

Decimals Decide Olympic Decimals Decide Olympic Champions!Champions!

Reading and Writing Reading and Writing DecimalsDecimals

• MathLiveMathLive

Base Ten BlocksBase Ten Blocks

Clicker ActivityClicker Activity

Decimal Number LinesDecimal Number Lines

• Draw the symbols that would Draw the symbols that would represent the decimal.represent the decimal.

Have a partner check.Have a partner check.• Place the paper on the number line-Place the paper on the number line-

Where is the most accurate position for 9.5?Where is the most accurate position for 9.5? Why would you place ____ in that location?Why would you place ____ in that location?

• I have 9.55. I wonder where that I have 9.55. I wonder where that should go?should go?

More About DecimalsMore About Decimals

• Brainpop -DecimalsBrainpop -Decimals