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Grade 4 Fractions

 

By the end of Grade 4 students will be expected to

compare fractions identify and model fractions and mixed numbers interpret and model decimal tenths and hundredths rename fractions compare and order decimals

 

I would recommend setting up your math class to resemble  Guided Reading  see the guided math page for more info.

I would begin my fraction classes with a  quick  10 question quiz.  What is 1/3 + 1/3?  Write a fraction between 0 and 1/3 etc.

This is followed by  a  short ( 2 to 5 minute) activity. This is usually placing a few numbers on a number line  or working with pattern blocks,

10 minute mini lesson.  Then I would work with a group of students who have had difficulty with quiz questions , tests or class work.

I then try to  interview at least 3 students a day

 I would end with a Closing lesson.

I used Fraction Factory for project work.

 

 

Quiz Questions

 1. How many minutes in 1/2 an hour?

2. How many minutes in 1/4 of an hour?

3. What is 1/2 of 12?

4. what is 1/2 of 1/4

5 Write a fraction larger than 1/2 but smaller than 1.

6. Write a fraction equivalent to 1/4.

7. Spell numerator.

8. Write a fraction that is larger than 1/2 but smaller than 1/1

9. Which is greater 1/2 or 1/6

10. Write the statement in symbols :  one quarter is greater than one ninth.

 

1. If hundreds flat equals 1 then

 what does rod =

2.If hundreds flat equals 1 then

 What does cube =

3. What does 5 rods and a cube =

4. 1.2 +1.2 =

5. 2.3 + 2.4 =

6 Write a fraction equivalent to 1/4

7. Write 50 cm. as a decimal fraction of 1 meter

8. Write 90 cm. as a decimal fraction of 1 meter.

9. 12/6=

10. Spell denominator

 

Mini Lessons

 

1. Fraction Man  Have students form groups of 3 and 4.  Pass out 5 different colours of construction paper to each group.  Have them fold and cut fractions and assemble their own Fraction Man.

 I recently did this activity with a Grade 2 class.  We assigned  tasks to create 2 Fraction Men.  Two students  folded and cut out the quarters, two folded and cut out the Eighths etc.

 

 

2. Pattern Block Fractions  If the yellow block = 1  What other ways can you show one?

1/1 = 2/2 = 3/3 = 6/6

Can you use a combination of the blocks to show  1?

Have a student give an addition equation and have the rest of the class build it.

1/2 + 3/6 = 1

 

 

2/3 + 2/6 = 1

(Which is greater 2/3 or 2/6?)

 

 

1/2 + 1/3 + 1/6 = 1

 

3. Finger Fractions (4A2 )  Using your fingers show 5/10 or 0.5 .  Show 0.2, 0.6 etc.

Have 10 students come to the front of the class . Now show 5/10 . Record as 5/10 and 50/100 . 0.5 = 0.50 

Students can show 5/10 as a fraction of a set.  Have each student hold up 5 fingers.

You can show 5/10 as a number line. Place a 0 to the left of the students and 100 to the right.

 

 

4. Pizza Fractions (4A1 )Using circle graphs for fifths and thirds , ask students to decide whether they would rather have 4/5 of a pizza or 4/3 of a pizza.

 Have them explain their choice in writing.

 

 

5.  Decimals and Money   Review numbers with thousands cube, hundreds flat etc.

 Tell class that thousands cube is equal to one.

 Discuss and record  tenths and hundredths.   Now ask for a volunteer to write  $1.33 on the board.  $1.75, $1.50

What would $1.33  look like ? dollar, 3 dimes and 3 pennies  What does 1.33 look like? (cube , 3 flats, 3 rods)

 

6.  Decimals  and Calculator  This is one of my favourites. Show the fraction 1/2 .  Discuss its meaning.

 If I take 1 and divide it by 2 what will my answer be?  What about 1/4, 2/4? 

Can you think off some more fractions  that will give me an answer of 0.5 ?

 

7.  Equivalent Fractions  This comes from the folks at Proteacher.net

 Use a copy of a multiplication chart to find equivalent fractions.

Match up any 2 columns, for example take the 3's and the 6's .  3/6 = 6/12 = 9/18 = 12 /24  etc.

 

8. Penny Flip(4A2)  Each student has a penny.  Flip and record 10 times. Name the fraction that describes the frequency of tails. (Have students record results as 3/10 and 0.3)

ex.  4/10 of my flips were heads  4/10 = 0.4 

 6/10 of my flips were tails   6/10 = 0.6

 

 

 

7.  Equivalent Fractions Calendar    Thirty days hath September, April , June and November.

 These months can be used for teaching equivalent fractions.

 Using counters, many ways can you divide 30 into equal groups?

15+15 = 30

10+ 10 + 10 =30

so

1/2 = 15, 1/3= 10, 1/5 = 6

Today is September 15.  At the end of the day, what fraction of the month will be over?

 

 

Interview Questions

1.How many fourths make a whole?

2. Ask student to order the following measurements from least to greatest.   1.24 m , 2.01 m , 0.97 m , 2.20 m ,  3 m , and 108 m

3. Ask students how they know that 3/5 + 2/5 = 1 .

 

 

 

                                                 Fraction Flag

 

 

Kingdom of Quarters

 

Create a Fraction flag for an imaginary Country

 

 

Web Pages

Grade 3 Fractions

Fraction Frenzy  Great activity with equivalent fractions.

Fraction Lessons  Coolmath4kids

Houghton Mifflin Fractions

Mathsplat   Interactive addition and subtraction of fractions

Super Teacher Worksheets  Fraction pages

Fraction Man

     Egg Carton Fractions University of Utah

Fraction Earth    Crayola  What fraction of the earth is covered by water?

Fraction Worksheets     Free worksheets from ABC School Help

Multiplication Table (Equivalent Fractions)

Balloon Pop Math      Sheppard Software  Drill in fractions as area.

BBC math sites Builder Ted  ladder game 

 

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I last edited this page on November 18  2010

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Last updated: 01/02/13.