Tenths and Hundredths
By Mr. Bales
Objective
By the end of the lesson, you will be able to identify, read, and write tenths and hundredths as decimals and fractions.
Standard 4NS1.6 - Students will write tenths and hundredths in decimal notation and fraction notation…..
Introduce
Using your tenths grid, shade in 0.2, 0.7 and 0.5 to show each number.
What is the fraction for each grid that you shaded?
Now, with the hundredths grid, shade 0.02 and 0.07 to show each number.
What is the fraction for each grid that you shaded?
Teach
Look at this decimal: 0.47 Which grid, tenths or hundredths, would
you choose to show this number? Why? How many columns of 10 squares
would you shade in? How many more small squares should be
shaded in? How many squares out of 100 should be
shaded in to show this number? Which number is greater, 0.4 or 0.47?
How do you know?
Get Ready to Learn
It costs 85 cents for a child to ride to the Sacramento light rail system. Can you write this part of a dollar as a fraction and as a decimal?
What is a Decimal?
A decimal is a number that uses place value, and a decimal point to show part of a whole.
Read and Write Decimals
One Way: Model Draw a hundredths
model. Shade 85 out of 100 parts to show 85 cents.
Read: eighty-five hundredths
Write: 85/100 or 0.85
Another Way: Place Value
Read: eighty-five hundredths
Write: 85/100 or 0.85
Write 85 cents as a fraction and as a decimal.
0 8 5
Concept in Motion!!
Some decimals can be written as
tenths and hundredths.
Write Tenths and Hundredths
One Way: Write Tenths
Read: five tenths Write: 0.5
Another Way: Write Hundredths
Read: fifty hundredths
Write: 0.50
Write 5/10 as two different decimals.
Mrs. Verughese!!
Bales Bucks!!
Write as a fraction and as a decimal.
one tenthtwenty-five
hundredthsseven
hundredths
Write each fraction as a decimal.
6/109/1010/10069/100
Assignment
Page 559 - #’s 13 - 34 Get them all correct - No Math
Homework