Transcript What is a Decimal?

D A J M School Darakhshan
Lesson Plan
Subject:
Mathematics
Topic:
Decimals
Date of delivery:
Monday , 25th July’2011
Class:
V
Prepared by:
Miss Musarrat Jehan Khan
D A J M S Darakhshan
Staff no JDK 54
What is a Decimal?
What is a decimal?
A decimal is similar to a fraction in that it is not a
whole number. It is a part of a number.
251 252
200
300
251 252
.
Which is larger?
4.5
4.5 or 4.05
Because 4.5 equals 4.50, 50 is larger than 5
6.3
2) 6.003 or 6.3
Because 6.3 equals 6.300, 300 is larger than 3
3) 5.012 or 5.12
5.12
Because 5.12 equals 5.120, 120 is larger than 12
1)
When do we use decimals?
 Weight (He weighed 85.5 lbs).
 Temperature (It was so cold today, it was only 43.7°)
 Measuring distances (example, the race was a 5 km,
but since I don’t understand kilometers, I changed it to
miles and saw that the race was 3.1 Miles long.
What do students need to know?
 Zooming in on the number line
 Arranging numbers in order.
Zooming in with a weak glass
0
1
2
3
4
2
2½
3
5
6
7
Zooming in with a weak glass
0
10
20
30
40
20
25
30
50
60
70
Zooming In
0
20
10
21
Ten “spaces”
20
22
30
23
24
40
25
50
26
27
60
28
(nine new numbers, labeled 1 to 9)
70
29
30
Zooming In More
0
6
1
6.1
Ten “spaces”
2
6.2
3
6.3
6.4
4
6.5
5
6.6
6.7
6
6.8
(nine new numbers, labeled 1 to 9)
7
6.9
7
What do students need to know?
 Zooming in on the number line
 Arranging numbers in order
What “tens” is it between?
43
40
50
How far from the nearest tens?
43
40
50
3
40
7
43
50
What “ones” is it between?
4.3
4
5
How far from the nearest “ones”?
4.3
4
0.3
4
5
0.7
4.3
5
Lesson Plan 1
Mathematics - v – Decimals
Learning Objectives:
Students will be able to distinguish
between tenths, hundredths and
thousandths.
Students will:
explore decimal place value.
read and write decimals using tenths,
hundredths, and thousandths.
compare decimals using greater-than and
less-than notation
Material:
Grid paper
Popsicle stick
Number line
Dice
Linkage with previous topic:
Recall:
Notation i.e. reading and writing of
numbers
Methodology:
Questioning while discussing
Have students examine the 10 x10 grid .
Explain ways to read and write decimal.
Lesson Plan 1
Activity 1:
1. Model fraction by using ten popsicle sticks.
Lesson Plan 1
Activity 2
Teacher dictates decimals for students to write in the place
value chart.
Lesson Plan 1
Activity 3
Roll a Decimal
On the board write the following 0._ _ _ _. Select an appropriate place
to put the digit that was rolled in order to create a number with the
largest value possible.
Lesson Plan 1
Activity 4:
Plot that Decimal
Create a number line on the board. Have the number line extend from
zero to ten. Create number cards by writing a whole number or a decimal
number on each card with a marker.
Have that student go to the number line and place his card.
Lesson Plan 2
Mathematics - v – Decimals
Objectives:
Use decimal skills to add, subtract, multiply, and divide.
Material:
•Child's favourite clothing catalog.
•Paper bag
•Play or real coins
•9 red cards.
•9 blue cards.
•9 green cards.
•Two sets of ten cards.
Linkage with previous topic:
Recall:
Knowhow to solve four operations.
Methodology:
Brainstorming and questioning while discussing.
Oral questioning about solving addition and subtraction . Oral recap of tables to find out product
of multiplication.
Lesson Plan 1
Activity 1:
Tell child that he can shop for his own clothes this year, within a certain budget. Give him
the number that represents the limit of his budget, and tell him to do calculation! He'll
need to use addition, subtraction, multiplication, and division .
Lesson Plan 2
Activity 2 :
The goal of these games is to practice counting and adding coins to reach Rs
1.00.Place all of the coins into the paper bag
Have all players continue to draw coins on the paper until they have reached Rs
1.00. The first to Rs 1.00 accurately wins the round.
Lesson Plan 2 Activity 3 :
Human Place Value Game:
Pass out one card to each student.
Instruct them to make the largest number possible with the given
numbers . Keep on changing the numbers.
Lesson Plan 2
Activity 4:
Prepare two sets of ten cards with a different digit on each (0,1,2,3,4,5,6,7,8,9). Mix up the cards.
The player with the greatest total scores 1 point.
Lesson Plan 3:
Mathematics_V_Decimals
Objectives:
To explain how to round decimals to the nearest 10th, 100th and 1000th.
Methodology:
Demonstration method.
Linkage with previous topic:
Recall:
Rounding off whole numbers.
Lesson Plan 3
Activity 1:
Cinderella Rounding
When rounding to any place value, use the Cinderella story to make it clearer when to "go" or
"stay".
Concerned
Websites:
www.education.com
www.lessonplanspage.com
Miss Musarrat Jehan Khan
D.A.J.M School Darakhshan
Subject : Mathematics
Grade: V
Staff No JDK 54
Long-term Goal
Adopt 21st century
teaching approaches to
enhance students
appreciation of
Mathematics.
To help students to
develop decimal skills
needed in daily life.
Short-term goals
 To explore decimal place value.
 Use decimal skills to add, subtract, multiply and
divide.
 To explain how to round off decimals to 10th ,100th and
1000th.
Instructional Strategies and tasks
They will explain how they
approach their answers.
I will ask questions from
students which require
higher order thinking.
Ask questions about
notation and four
operations.
Activities will be
performed to develop
student’s interest.
Solutions to Anticipated Challenges
 Challenges
Solutions

A.



A. The principal may not agree with my
new approach .
B. Parents may not understand my
methods.
C. There is no computer in class.
D. There may be some students who do not
want to work.
I will convince my principal that
computer provides more knowledge in
less time in today’’s time.
B. I will use my new word processing skills to
create a newsletter to inform parents of
my new methods.
C. I will take students to the computer lab.
D. I will create interest in students by
performing various activities.
Class 5 News
By Musarrat Jehan Khan
August 1st ,2011
 What happened in class this week .
 What happened in class next week.
 Students were taught about chapter
‘’Decimal.”
 Make an assignment on “Grid paper
colour 1/10,10/100 and 1/100”
 A competiton of tables will be held in
class and result will be announced next
week.
Parents will prepare their children on four
operations.
1st week
Decimals will be introduced
& emphasize on place value.
3rd week
Rounding off
decimals.
2nd week
The four operations in
decimal..
4th week
Take test.
Resources
Other teachers who teach my same
grade and subject.
Internet.
MS Word and power point.
Took help from Intel Teach Program.
Conclusion
I will implement newly learned techniques of
intel so student will gain a better knowledge
of Mathematics and will develop a better
understanding of the topic .
Empowering Today’s Education to
Inspire Tomorrow’s Innovation