Equivalent Fractions
1. Introducing
Fractions
Teaching
of Fractions
Our
Approach to Teaching a New Concept in Fractions
Our
Lesson Plan
2. Methodology of Teaching
Material
in "Equivalent
Fractions"
Storytellling
and Mathematics
3. Lesson Plan: Equivalent
Fractions
Firstly, we examine
the best time, in terms of children's development, to introduce
fractions (1. Introducing Fractions).
Secondly, the methodology
by which, in our example, it is introduced (2. Methodology of Teaching).
1. Introducing Fractions
When should we introduce the concept of fractions to our students?
Is there
a particular time when it would be more advantageous to do this?
Should we be asking ourselves if students are more receptive to learning
about fractions at a certain stage of their development, and if so why
should this be?
Age and Stage of Growth
We assume acceptance of
the concept of "stages of development". There is a considerable
amount of evidence available from educators
and psychologists such as Piaget, Erikson and others concerning
their developmental models based on stages - please see Note
1 at end. We also assume that teaching is far more effective
if these stages influence the time when concepts are introduced,
and also influence the way in which they are introduced.
Children of Nine/Ten
We believe that children up until the ages
of nine/ten experience reality as a totality. In other words
they do not discriminate between themselves as subject and the outer
world as object.
What do we mean by this? Consider young elementary school children. They instinctively
think pictorially, they express the images in their mind through artistic and
creative form. They naturally give credence and life to certain inanimate objects.
They view the world wholistically and as a totality which is related to, and
exists as, part of themselves.
They safeguard their experiences, to a large extent, with their imagination
and their ability to fantasize. In other words they instinctively shield themselves
from what might be potentially harmful. This shield has now to be carefully
dismantled so the inevitable process of being able to distinguish between themselves
and the world around them can occur as gently as possible.
Teachers now have another option open to them. Subject matter that
was taught through a thematic approach can now, if required, be introduced
through the content areas. However, one would expect teachers to still
use a cross-curricula and a wholistic approach.
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(Equivalent Fractions)
Teaching of Fractions
How does the teaching of mathematics and, in particular, fractions
tie in with children at this stage of development?
The study of fractions is taught by teaching from the whole
to the parts. This process is a parallel activity to the
growth pattern of development that is happening in children
around nine/ten.
It follows, therefore, that while many educators ask the question "Is
this child ready to handle this content at this particular time?" a
teacher using the approach described would tend to ask such questions
as "What
will help us feed and enrich this child at this particular stage
of development?"
In addition, as the elementary school child's world is also one of
color and pictorial representation, approaches which stimulate children's
imagination or which engage their creative and artistic abilities
are recommended.
Our Approach to
Teaching a New Concept in Fractions
First Stage
The first stage is to relate material to the experience of the student.
It is accepted that this experience is different from the adults'
experience. In essence children are not miniature adults. When teaching
adults we would probably teach immediately to the "head" whereas
for elementary school children we need to teach to the "heart" and "hands".
Wherever possible content is introduced so that it relates
to artistic and pictorial representation. One way of doing
this is through storytelling where the student's imagination
is stimulated although it should be added that a subject area
such as fractions does not lend itself to the creation of stories
as easily as say history does. Through stories, information
is absorbed in a way that is in empathy with the students'
experience. (storytelling was dealt with in the first newsletter
- for sake of ease it is repeated in Note 2.)
Second Stage
The second stage is to encourage the students to express their
experience through a variety of artistic forms. Some children
will want to do this quickly; others will want to take their
time. This stage should not be hurried and the children should
be given enough time to work through a number of forms according
to ability, aptitude and temperament.
Third Stage
The third stage is to work through concrete examples.
Fourth Stage
The final stage is to introduce the abstract concepts and to work
symbolically with numbers.
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(Equivalent Fractions)
Our Lesson Plan
Students need to be able to convert a fraction to its equivalent
form in order to carry out all but the simplest computation
involving fractions. It is important, therefore, to introduce this
aspect quite early in the study of fractions. We begin with the
story "Distributing
the Hay." We recommend
the story is first read to the students. Next, students
learn the words in the glossary (see Teacher Notes.) Students can
then read the story independently (readability level of Student
Version is Grade 3.7). Thus, students are introduced to the concept
of equivalent fractions. As stated earlier this is a math/language
arts program and Assignment 1 involves students in identifying
(through a pictorial approach) nouns, verbs and adjectives.
The activity sheets (Activities 1, 2 and 3, Assignment 2) are
designed to provide students with a visual experience of equivalent
fractions. They are also designed to encourage students to work
first through the imaginative realm, then through the visual,
followed by the concrete, and finally the abstract. Instructions
are given to guide the student through the steps of creating
a Fraction Chart (Assignment 3). In this assignment they gain
valuable experience in following written instructions. There
is sufficient repetition of vocabulary and sentence structure
to assist the less able reader.
2. Methodology of Teaching
Introduction
The best results of any teaching process will occur when a good relationship
has been established between teacher and child. Yet the qualities that
determine the way in which we react and respond to each other are virtually
ignored in the educational sector. Teachers have no option but to depend
entirely on their own perception and awareness to meet the needs of
each individual child. Contained in the Waldorf approach is the belief
that each of us possess four temperaments or personality types, one
of which will predominate. Once teachers appreciate different temperaments
or personality types they can perceive "needs
and interests" according to the temperament or personality
type of each particular student.
Background
The Greeks were the first to write about the
four temperaments found in human
beings and how one predominates. Hippocrates described
how nature as a whole and the elements that comprise
it (the macrocosm) were reflected in our own nature (the
microcosm). He was also of the opinion, and this, of course,
was long before the days of endocrinology, that the four
elements were represented in the human body in the form
of four "humors". The
names the Greeks gave to the temperaments (choleric, melancholic,
phlegmatic and sanguine) were related to the humors and
man's physical make up. Although these names are still
used in the Waldorf approach they do not relate to modern
terminology. For example, the description of a melancholic
refers to a particular temperament and not to a depressed
or gloomy state of mind.
Basis for interaction between teacher and student
Doesn't any teacher want to know how to motivate his/her students?
Doesn't any teacher want to see that their students' learning is
somewhere near the optimum? This area is therefore crucial for
it is part of the craft of the teacher to formulate lessons so
an appeal is made to each of the temperaments.
What is the basis for interaction between teacher and student?
It is that the teacher should be working with the main temperament
of each individual child and not against it. If the inner needs
according to temperament are not met a barrier to learning will
almost certainly occur.
What is the reality in any interaction? Each one of us at any particular
time possesses a certain disposition and attitude towards whatever
is happening in that interaction. It is assumed that a teacher would
find it helpful if they knew why a student was thinking or acting in
that particular way.
Material in "Equivalent
Fractions"
All examples in Student Version of the story.
When there is something in a story that appeals to that child's temperament
he/she is more likely to be attracted to, and show greater interest in, the
content. Usually it is enough to include a brief description in order to gain
the interest of that particular temperament.
For example, many children with a predominantly melancholic temperament
are concerned or worried about things or circumstances. It is reassuring
to them to know that others also worry about things. We see that
Mr. Austin worries a great deal "Each winter he worried whether there
would be enough hay for him to buy ...." Melancholic children, when
things go wrong, tend to complain or grumble as a natural part of their
social interaction. Hence we have Mr. Austin grumbling to his wife "I'm
not sure how long I can do all this work ...."
Cholerics are usually very practical. They tend to view the world in
terms of black and white, their energy is outgoing and they love challenges
and solving problems. In the story Mrs. Austin has a choleric nature
and she accepts the challenge presented to her and immediately comes
up with an answer.
Top (Equivalent
Fractions)
Note 1
I believe that the majority of child psychologists and educators
would accept the concept of stage in relation to
child development. The following may be helpful in clarifying what
we mean by stage.
"The enlargement of the life space proceeds by stages,
each of which may involve a varying period of time for acquisition
followed by a period varying in length during which the growing
person adapts to his/her new found functions and properties.
Thus, there are sudden as well as gradual transformations
of behavior with each change followed by a period of gradual
adaptation." J.E.Anderson
"1. There is an invariable order of the stages of development;
2. no stage can be skipped;
3. each stage is more complex than the
preceding one: it represents a transformation of what existed before
in a new form; and 4. each stage is based on the preceding one and
prepares for the succeeding one. The development model assumes an inner
logic, a built in plan that gives direction to the sequence of development." L.Breger
Note 2: Storytelling
Why does a lesson on mathematics begin with
a story? Stories, more than anything else, engage
the child's imagination. They transport children
into a world where they can easily create pictures,
and visualize a situation. Part of the task of
teachers is to transmit knowledge to students.
However, the act of learning is not complete until
students have internalized the knowledge and made
it their own. This process is far more effective
when it is done through storytelling. We need not
be concerned, at present, with the extent to which
this occurs or with the influence on hemispheric
development (this will occur in a later newsletter).
The main point is to establish that storytelling
is a way in which we can pass on information to
students while at the same time enhancing and optimizing
their learning.
Storytelling and Mathematics
We believe that this enhancement and optimization can occur
even in subjects like mathematics. For example,
in our material we try and introduce many concepts with a story (an
overview of our material is available at: http://members.home.net/waldorfedu/Math.html).
When teaching our lessons we recommend that,
initially, the teacher reads (even better,
if the teacher can tell) the story to the class.
At this point there is no pressure on children to do anything but
listen to the content and create pictorial representations according
to their ability to do this.
They will, instinctively, create pictures from the story content,
and in so doing they create their own context within which to work.
Any information they now receive will be absorbed into this context.
Thus the base has been laid for the teacher to move on to the next
stage.
In other words, the teacher by reading or telling the story has created
a context with which the children can identify, and through which
they can absorb information.
As far as our approach is concerned this point is crucial. Students
start the process of understanding by creating pictures in their
imagination. It is only when this has occurred should they move on
to work through hands-on experiences with manipulatives. Finally,
and only when they have worked through the first two stages, are
they ready to work with the abstract and theoretical.
Lesson Plan: Equivalent Fractions
- A
mathematics/language arts lesson
Contents of this lesson plan:
Teacher Notes
Story - Distributing the Hay (Teacher Version)
Story - Distributing the Hay (Student Version)
Assignment 1: Language Arts
Assignment 2: Distributing the Hay
Assignment 3: Making a Fraction Chart
Assignment 4: Equivalent Fractions
Assignment 5: More Equivalent Fractions
Teacher Notes
Students need
to be able to convert a fraction to its equivalent form in order
to carry out all but the simplest computation involving fractions.
It is important, therefore, to introduce this aspect quite early
in the study of fractions. However, it is assumed that much basic
work precedes this lesson. Before embarking on this lesson it is
assumed that students have been given an introduction to fractions
and the language of fractions; that they can use the vocabulary
of fractions, recognize and represent basic fractions, and that
they are able to compare and rank simple fractions.
Distributing the Hay (Student Version)
Before students read the story independently teachers might like
to ensure that they are familiar with the following words. If
students work with this glossary, and are able to read these
words, then the readability level of the text is Grade 3.7.
distributing, following, portions, denominator, numerator, fraction,
practical, dividing
This is a math/language arts program and Assignment 1 involves
students in identifying (through a pictorial approach) nouns,
verbs and adjectives.
The activity sheets (Activities 1, 2 and 3, Assignment 2) are
designed to provide students with a visual experience of equivalent
fractions. They are also designed to encourage students to
work first through the imaginative realm, then through the
visual, followed by the concrete, and finally the abstract.
Instructions are given to guide the student through the steps
of creating a Fraction Chart (Assignment 3). In this assignment
they gain valuable experience in following written instructions.
There is sufficient repetition of vocabulary and sentence structure
to assist the less able reader.
Distributing
the Hay (Teacher
Version)
A
farmer, Mr. Austin, had 18 horses of which he was very proud. During
the summer months the animals fed on the rich grass of the pastures,
and were strong and healthy. But when winter came, the grass in the
fields grew slowly and there was not enough for the horses to eat.Each
year Mr. Austin bought hay so that his horses would not go hungry
and would stay healthy during the cold months. Mr. Austin stacked
the hay in a large barn. The hay was just the right food for the
horses and it was quite easy to store.Once again winter arrived and
the hay was ready, but Mr. Austin wanted to make sure that he treated
all the animals fairly. He wanted to make sure that each horse had
the same amount to eat; that each of the 6 horses in his first field
did not get more or less hay than each of the 12 horses he kept in
the second field. He therefore had to work it out very carefully
and he wrote down the following to help him make his calculations.
| The first field has 6 horses |
It holds 6/18 of all
the horses. |
| The second field has 12 horses |
It holds 12/18 of all the horses. |
| In order to be fair to the horses |
|
| the first field should receive |
6/18 of the hay |
| the second field should receive |
12/18 of the hay |
However, Mr.
Austin found that it was a great deal of work to make sure each horse
had its fair share. Each day he would take the hay and divide it into
18 portions (the same number as the number of horses). He would then
take 6 of the portions to one pasture and 12 to the other pasture.Soon
Mr. Austin was grumbling to his wife that he wasn't sure how long he
could go through all this work in order to make sure that the horses
in each pasture had their fair share.
Mrs. Austin chuckled and told him there was a much easier way to
deal with the problem.She drew a picture of the hay in the way her
husband had been dividing it up and with colored pencils she shaded
the hay for 6 horses in one color, and the hay for 12 horses in another.
The illustration soon showed them both that 6/18 of the hay was just
the same size fraction as 1/3, and that 12/18 of the hay was just
the same size fraction as 2/3.
Mr. Austin could already see the advantage of working with these
new fractions. He would now have only to divide the hay into 3 and
not into 18, but he was a man who liked to work with numbers and
so he sat down and worked it out for himself.He found that it was
often possible to make the numbers of the fraction smaller and more
manageable by dividing them. However, he realized that you must always
do the same division exercise on the numerator as on the denominator
or the final fraction would not be the same as the one you started
with.
This is what he discovered:
| If you start with 6/18 and divide
the numerator and denominator by 2 |
it becomes 3/9 |
| If you then take 3/9 and divide the
numerator and denominator by 3 |
it becomes 1/3 |
He also discovered:
| If you start with 12/18 and divide
the numerator and denominator by 2 |
it becomes 6/9 |
| If you then take 6/9 and divide the
numerator and denominator by 3 |
it becomes 2/3 |
So Mr. Austin found that instead of dividing
the hay into 18 portions he now only needed to divide each day's
hay into 3.He gave 1/3 of the hay to the horses in the first pasture
and 2/3 to the horses in the second pasture.He soon found that caring
for his horses took far less time. He also knew that the horses in
each of the pastures would now be able to have a fair share of the
hay.
Top (Contents of this lesson plan)
Distributing the Hay (Student
Version)
A farmer, Mr. Austin, had 18 horses. He was very
proud of them. During the summer months the animals fed on
the rich grass in the fields. The horses were strong and healthy.
In the summer Mr. Austin was happy because he knew his horses
had enough to eat.
When winter came, the grass in the fields grew slowly. At
this time the horses did not have enough to eat.
In the winter Mr. Austin bought hay. Each winter he worried whether
there would be enough hay for him to buy. Each winter he worried
whether his horses would have enough to eat. Each winter he worried
whether they would stay healthy during the cold months.
Mr. Austin stored the hay in a large barn. The hay was just the
right food for the horses. Also, it was quite easy to store.
Once again winter arrived and the hay was ready. As usual Mr. Austin
wanted to make sure that he treated all his horses fairly.
He wanted to make sure that each horse had the same amount to eat.
That meant that each of the 6 horses in his first field got the
same amount as each of the 12 horses in the second field.
He knew that he had to work it out with care. He wrote down the
following to help him work it out.
| The first field has 6 horses |
It holds 6/18 of
all the horses. |
| The second field has 12 horses |
It holds 12/18 of all the horses. |
| In order to be fair to the horses |
|
| the first field should receive |
6/18 of the hay |
| the second field should receive |
12/18 of the hay |
Mr. Austin found that it took a long time to work
it out.
Each day he would take the hay and divide it into 18 portions. There was one
portion for every horse. He took 6 portions to one field and 12 to the other
field.
It was so much work Mr. Austin grumbled to his wife, "I'm not
sure how long I can do all this work. I want to make sure that
the horses in each field have the same amount but it is too much
work."
Mrs. Austin chuckled. She was a very practical person. She loved challenges
and solving problems.
She could see an answer to her husband's problem. She told him, "There
is an easy way to deal with this problem."
She drew a picture of the hay in the way her husband had been dividing it up.
She shaded the hay for 6 horses in red, and the hay for 12 horses in blue.
This soon showed them both that 6/18 of the hay was the same size fraction
as 1/3. Also, that 12/18 of the hay was the same size fraction as 2/3.
Mr. Austin soon saw that this would be easier. He would now have only to divide
the hay into 3 and not into 18.
He was a man who liked to work with numbers. Sometimes he needed
time to do this. He told his wife, "I think you have the answer.
Let me sit down and work it out slowly."
He found that it was often possible to make the numbers of the fraction smaller
by dividing them.
He said to his wife, "You must always divide the numerator
and the denominator by the same number. If you do this the size
of the fraction will be the same as the one you started with."
This is what Mr. Austin found:
| If you start with 6/18 and divide
the numerator and denominator by 2 |
it becomes 3/9 |
| If you then take 3/9 and divide the
numerator and denominator by 3 |
it becomes 1/3 |
He also found that:
| If you start with 12/18 and divide
the numerator and denominator by 2 |
it becomes 6/9 |
| If you then take 6/9 and divide
the numerator and denominator by 3 |
it becomes 2/3 |
So Mr. Austin found that instead of dividing the hay
into 18 portions he now only needed to divide each day's hay into
3.
He gave 1/3 of the hay to the horses in the first field and 2/3 to the horses
in the second field.
He found that caring for his horses took far less time. Mr. Austin
stopped worrying about how to give each horse the same amount of
hay.
Top
(Contents of this lesson plan)
Assignment 1: Language Arts
Identifying nouns, verbs and adjectives
For this activity each student will need three colored pencils
(red, blue and green), and a copy of the story "Distributing the Hay" (Student
Version).
Work as a class or in small groups.
Read the story looking for nouns. As soon as a student identifies
a noun, stop and give the students time to gently shade the
noun in blue. Repeat this until around 6 nouns have been identified
and shaded.
Repeat this activity, this time looking for verbs and shading these
in red.
Finally, repeat the activity but this time identify adjectives and
shade them in green.
The red is used for the verbs because of its quality of warmth and
activity, green for adjectives, because of the living quality of
green, and blue for nouns for its quality of coldness.
Assignment
2: Distributing the Hay - Activity 1
This is the drawing of the hay
that Mrs. Austin made. The hay
has been divided into 18 portions,
one for each horse. |
|
- Shade the hay for the larger field in green.
- Shade the hay for the smaller field in brown.
- Look carefully at the hay you have colored
in.
- Can you see that 6/18 is the same as 1/3?
- Can you see that 12/18 is the same as 2/3?
|
This is how Mr. Austin
checked the solution:
6/18 = 3/9 = 1/3
12/18 = 6/9 = 2/3 |
Assignment 2: Distributing the Hay - Activity
2
The number of horses in the fields below has changed.
There are
now 15 horses in the large field and 5 horses in the small field.
Draw
the horses in their fields.
Make a drawing of the hay they will need
as Mrs. Austin did.
Shade the hay for the larger field in green and
shade the hay for the smaller field in yellow.

What fraction of the hay was put into the large
field?
What fraction of the hay was put into the small
field? |
Write the fractions in the same way as Mr. Austin.
Assignment 2:
Distributing the Hay - Activity 3
- Last year the Austins had fewer horses.
- There were 9 horses in the large field and 6 horses
in the small field.
- Draw the horses in their fields.
- Make a drawing of the hay they will need as Mrs.
Austin did.
- Shade the hay for the larger field in green and
shade the hay for the smaller field in yellow.
What fraction of the hay was put into the large
field?
What fraction of the hay was put
into the small field?
Write the fractions in the same way as Mr. Austin.
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(Contents of this lesson plan)
Assignment 3: Making a Fraction Chart |
- You will need some squared paper.
- Choose one with large squares to make a
large chart.
- Draw a rectangle that is sixteen squares
along one side and five squares along the other.
|
|
|
|
- Shade the squares in the first line a color
of your choice.
- Label it "1".
|
- Shade the squares in the second line a color
of your choice.
- Divide the strip into two equal parts and
label the two halves.
|
|
|
|
- Shade the squares in the third line a color
of your choice.
- Divide the strip into four equal parts and
label the four quarters.
|
- Shade the squares in the fourth line a color
of your choice.
- Divide the strip into eight equal parts
and label the eighths.
|
|
|
|
- Shade the squares in the fifth and last
line a color of your choice.
- Label the sixteenths.
|

In the next assignment you can use your Fraction Chart. |
Assignment
4: Equivalent Fractions
Use your fraction chart to help you
find the answers to the following questions. |
| 1. How many 1/4 's do you need
to make 1/2? |
|
| 2. How many 1/8's do you need
to make 1/2? |
|
| 3. How many 1/16's do you need
to make 1/2? |
|
| 4. How many 1/16's do you need
to make 1/4? |
|
| 5. How many 1/8's do you need
to make 3/4? |
|
| 6. How many 1/16's do you need
to make 1/4? |
|
Look for the word EQUIVALENT in your dictionary.
Write the meaning here:
|
How many fractions can you find that
are equivalent to 1/2?
Write them here:
How many fractions can you find that are equivalent to 3/4?
Write them here:
|
- Here are a number of different fractions.
- Alongside each (in Column 1) write an equivalent
fraction from your Fraction Chart.
- Now rank them, putting the largest fraction
first and the smallest last and write them in Column 2.
Take extra care with Column 2. Remember what
you learned about size of fractions (ask your teacher if
you cannot remember!) |
| |
Column 1 |
Column 2 |
|
4/16 |
|
|
|
2/8 |
|
|
|
6/16 |
|
|
|
6/8 |
|
|
|
2/4 |
|
|
|
Assignment 5: More Equivalent Fractions |
| In this Assignment we are going
to learn more about equivalent fractions. |
| Fractions
which are equal but have different numerators/denominators
are called EQUIVALENT
FRACTIONS.
|
Use your fraction chart to help you complete these
equivalent fractions.
Look carefully at the equivalent fractions.
Can you work out a very important rule when calculating equivalent fractions?
|
Answer:
Equivalent fractions can be created by dividing or multiplying
the numerator and denominator by the same number. |
|
|
|
|
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(Contents of this lesson plan)
|