Tuesday, November 16, 2010

Teaching aids 1: Understanding the water level by observing the container and Compare the capacity in non-standard container

Usually several pupils are not really able to differentiate the water level of the container. Well, this is the first step to make sure the whole groups of the pupils are understanding on the level of the volume.
  
        How the pupils understand through this lesson? For the low achiever students, teacher will prepare the activities below:
      Activities 1 :

Learning Outcomes : To make a perceptual comparison of capacity

Materials : a dispensary bottle
                 a cup
                 Three similar size drinking glass

Procedures:
1)Teacher shows a dispensary bottle ,a drinking glass and a cup ,each filled with
coloured- water ,and guides the pupils to guess the one which has the most or the
least amount of coloured-water.

2) Teacher confirm the answers by pouring the coloured-water from A and C into the drinking glass D and E having the same size as B like a picture below:



                         3) Pupils make a conclusion :
                              A cup have a most volume and  the dispensary bottle have a 
                              least volume.

4) Students doing the words sheet 1

For the high achiever students,teacher will use the teaching aid 1 to prepara the activities below:

Activities 2:

Learning Outcomes: To measure volumes of liquid using non-standard units.

Materials: a dispensary bottle
                 a cup
                 a drinking glass
                 a cylinder

Procedures:
1) Teacher picks  3 pupil to fill coloured-water into cylinders having same capacity by using  
   different measuring instruments.

                       For example:
                       Pupil A : Fills coloured- water by using a small Dispensary bottle.
                       Pupil B : Fills coloured-water by using a cup.
                       Pupil C : Fills coloured-water by using a drinking glass.

 2) Then, these pupils are asked to record, by using different measuring instruments, the 
      quantity  of coloured-water contained in the big cylinder in the following table:

 
Pupil
Measuring instrument
Number of time required to fill the cylinder
A
Dispensary bottle

B
cup

C
Drinking glass


3) Have the pupils write thier findings in the statement below:

The volume of water in the cylinder is the same as the capacity of ______dispensary bottles.
                   
The volume of water in the cylinder is the same as the capacity of ______cups.

The volume of water in the cylinder is the same as the capacity of ______glasses.

4) Based on the activity above , teacher guides the pupil to make the following conclusion:

Quantity measured will be different if different measuring instrument are used to fill 
up the  same capacity .
                  
5) Students doing the words sheet 2.

                

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