Place Value
Why is Place Value important?
For rounding numbers
To explore and identify the value of a number
To solve math problems
Name the 3 types of angles learnt and what are their degrees/ measurement?
Acute (0-89), Obtuse (91-180), Right (90)
Name 2 types of Bar charts/ graphs.
Vertical and Horizontal
Why is Rounding numbers important?
Rounding off numbers help us to estimate.
Expanded form of 1005 and 1970
1000+5
1000+900+70+0
Why do we learn about Lines and Angles?
To solve problems involving different lines and angles
To know about different lines and its use/ properties
Name 5 methods of collecting data.
Bar graph, line graph, tally system, scales and Pie charts
Can Parallel lines be perpendicular to teach other?
False
Standard form of:
4000+90
1000+10+2
4090
1012
Which 2 angles are formed by an Oblique line?
Acute angle and Right angle
Why do we learn about collecting Data?
To organise and represent certain useful information
To solve practical problems
Use tally to show the following information:
football hurling golf tennis basketball golf golf tennis football hurling tennis tennis golf football football golf
Football - 4
Hurling - 2
Golf - 5
Tennis - 4
1 units =
5 tens =
84 tens =
4 hundreds =
7 thousands =
1
50
840
400
7000
What is a perpendicular line?
It is a straight line that is at a right angle to another line.
Suggest a scale that could have been used for the graph shown on page 18 - Animals on Philips farm
Scale of 20
Diana has 36 Christmas gifts to be distributed amongst her 4 friends. How much will each of her friends get? Show with the help of a Pie Chart.
9 gifts
How much is 1Th, 2H, 14T and 2U
How much is 1Th, 3H, 3T and 12U
1342
Using the clock give an example of a time showing acute, obtuse and right angle.
7:20
3:45
9:00
Think of a real life example of data collection practices in your school
Collecting HW
Taking attendance
Round off the following numbers:
1508 to the nearest 10
4506 to the nearest 100
8500 to the nearest 1000
1510
4500
9000