November 25, 2011

November 24, 2011

Learning of Space

A polygon, a name derived from Greek meaning many-angled, is a plane geometric figure bounded by three or more sides. Common examples of polygons are triangle, quadrilateral, pentagon and hexagon. All polygons have vertices, which are the angle points where two sides meet. Thus, the number of sides indicates the same number of vertices of a polygon. For example, a four-sided quadrilateral would have four vertices. Similarly, a n-sided polygon would have n vertices.  
Two-dimensional figure is enclosed by straight lines or curves. Various types geometrical shape such as square, rectangle, equilateral triangle, and circle. A triangle has three sides. A quadrilateral has four sides. Figures with round shapes are called circles, and have curved side. A square has four sides equal in length.
Three-dimensional geometric figures such as cube, cuboids, pyramid, sphere, cylinder and cone. Four sides of a cube are equal. Length, width and height of cuboids are different. Cone has a base of a circle. Pyramid has a square base. Pyramid with base of a rectangle. Cylinder has a circled base. Sphere with shape of a ball.

November 23, 2011

November 21, 2011

November 19, 2011

Two Dimensional Geometric Forms

These geometric figures have only two dimensional plane surfaces – length and breadth. A plane surface means that the line joining any two points in the plane lies wholly in the plane.

November 17, 2011

Conversion of volume of liquid involving litres and millilitres

1000 ml = 1 litre
2 litres = 2 x 1 litre
            = 2 x 1000 ml
            = 2000 ml
2340 ml = 2340 ÷ 1000 l
                 = 2.340 l

November 13, 2011

To ascertain and read the standard unit of millilitre and write its symbol ml

(1)               The amount of water in the bigger cylinder is 10 times as in the smaller cylinder.
(2)               The smaller cylinder can fill with liquid up to 1000 millilitres.
(3)               Millilitres is a smaller unit for measurement of the amount of liquid.
(4)               The symbol for milliliters is ml
(5)               1 l is equal to 1000 ml

November 08, 2011

kg to kg and g to g

1 kg = 1000 g
To change kg to g, multiply 1000
3.46 kg to g
3.46 kg = 3.46 x 1000 g = 3460 g
To change g to kg, divide 1000
2768 g to kg and g
2768 g = 2000 g + 768 g
                        = 2000 g ÷ 1000 kg + 768 g
                        = 2 kg 768 g

November 03, 2011

Changes units of cm and mm

6 cm = 6 x 10 mm = 60 mm
5.4 cm = 5.4 x 10mm = 54 mm
In order to change the unit of cm to mm, we need to multiply the number of cm by 10.
87 mm = 87 ÷ 10 cm = 8.7 cm
24 mm = 24 ÷ 10 cm = 2.4 cm
In order to change the unit of mm to cm, we need to divide the number of mm by 10.

November 01, 2011

Measurement of Length

Come and have a look on how to measure the length of an object