Lesson: Fractions: Decimals

Materials Needed: scrap paper for DN, Example Overhead, white board, dry erase markers, pencils, GP Worksheet, and IND Worksheet.

Vocabulary: whole (or ONE or unit), denominator, numerator, equivalent

 

……….

Do Now (3 -5 min): The teacher writes the following fractions on the board. Students are instructed to write an equivalent fraction on their scrape paper.

 

1 50  3 6

5 100   4 9

 

Opening (2 -3 min): Teacher quickly reviews answers to the Do Now. The teacher should then state the objective, “Yesterday, we developed equivalent fractions using a rule. Today, we are going to focus fractions and decimals. By the end of this lesson, you will be able to rename fractions as decimals and decimals as fractions.”

 

Direct Instruction (8 - 10 min): The teacher begins with the following problems on the board:

 

Write the following fractions as decimals:

 

10 10 100 100

 

 

Using the Example Overhead the teacher should discuss the answers. The teacher can color the grid sections to show fractional parts.  For example:

 

What fractional part of the square is this? 1 grid is shaded. [ 1 ] 

          10

 

How would you write  1 as a decimal? [0.1, one of the ten rows are shaded]

              10

 

The teacher should repeat the same process with the other fractions in tenths, including

 3   and 5

10       10

 

The teacher should then move on to the 100s grid and color/shade in one small square and repeat the same questions.

 

What fractional part of the square is this? 1 grid is shaded in the top grid. [ 1 ] 

               100

 

How would you write  1 as a decimal? [0.01, only one of the 100 squares are  shaded]

             100

 

The teacher should repeat the same process with the other fractions in hundredths, including

 32   and 8

100     100

 

Guided Practice (10 min): The teacher then passes out the GP Worksheet. Students are broken into groups of 3 to work on the sheet together. 

 

Independent (10 min):  The teacher passes out the IND worksheet. The students are asked to complete it individually and turn it in.

 

Closing (2-3 min): Teacher calls the attention of the students back toward the front of the class to quickly review the answers to the Independent Practice worksheet/ ask what we learned about.