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