Measuring Grafts

1. Lesson 5 and
6
Measuring Area and
Reading Graphs
2nd Grade

2. Measuring
Area
0
5

3. Measuring Area
 Area describes how much surface must be covered.
 Area is measured in square units.
 A is 1 square unit. It is a unit of measurement.
 Here is an example:
 The area of this rectangle is 20 square units (20 sq. u). It is made up of 20-
unit squares

4. Measuring Area
 A square centimeter is written as cm².
 What is the area of the figure below?
 Since there are 5 sq. units, the area is 5
cm².

5. Measuring Area
 We can use other objects to find the area of a surface.
 For example, we can use a square sheet of as a unit of
area.
 We can say that the area of the table is about 8 sheets of
paper.
 Knowing how to find the area is important so that we will know how
much material we will need to cover a surface.
 For example, if we want to cover our study table with plastic, we
have to know the table’s area.

6.  How many square units are enclosed in each
figure.
16
12
30

7.  How many square units are enclosed in each
figure.
30
18

8. Reading
Graphs
06

9. Reading Graphs
 Everyday, we deal with data. We use these
data to understand some things around.
 There are some tools that help us understand
many things at a glance.
 One of these tools is called graph.
 A graph is used to show and compare
information. It tells a number story at a glance.

10. Reading Graphs
 Each box stands for 1 shape.
 There are 5 types of shape: 6 , 5 , 4 , 3 , 2 .
 There are 20 shapes altogether.

11. Reading Graphs
 Graphs can answer many questions.
 There are many kinds of graphs. One
of those is a pictograph.
 A pictograph is a kind of graph that
uses pictures or images to give
information.

12. Reading Graphs
 Give the number of books borrowed during
the:
1st week: 2nd week:
3rd week: 4th week:
 Books borrowed during the:
a. 1st and 2nd week:
b. 2nd and 3rd week:
 Compare the number of books borrowed
during the given weeks. Write > or <.
a. 3rd week _____ 4th week
b. 4th week _____ 2nd week
45 35
55 60
80
90
<
>

13. Reading Graphs
 How many packs were donated
on Monday and Tuesday?
 How many more packs were
donated on Tuesday than on
Thursday?
 How many packs were donated
on Wednesday and Thursday?
 Which day has the most and
least donation?
75 packs
10 packs
75 packs
Most: Wednesday
Least: Thursday

14.  Which instrument got the
most votes?
 Which instrument got five
votes?
 How many more votes
did the guitar have than
the drums?
 How many votes did the
piano and flute have
together?
Piano
Flute
2 votes
12 votes