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BANGHAY-ARALIN sa SIBIKA at KULTURA - PreventionWeb

BANGHAY-ARALIN sa SIBIKA at KULTURA - PreventionWeb

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esponses in the blackboard.<br />

B. Developmental Activities:<br />

a. Present<strong>at</strong>ion:<br />

Based from the picture of a tropical cyclone, give pupils insight<br />

how it is formed and its classific<strong>at</strong>ions. Its probable effect and<br />

the precautionary measures in order to elicit or minimize<br />

effects, to check wh<strong>at</strong> they gave in review.<br />

Classific<strong>at</strong>ion of a Tropical Cyclone<br />

(1) Tropical Depression – less than 64 KPH<br />

(2) Tropical Storm – gre<strong>at</strong>er than 64 to 117 KPH<br />

(3) Typhoon – gre<strong>at</strong>er than 117 KPH<br />

Express in r<strong>at</strong>io each classific<strong>at</strong>ion by using a color to<br />

compare quantities/numbers.<br />

Ex: 64:1<br />

117:1<br />

64:117<br />

The Philippines is visited by typhoon in a year for almost 25<br />

times. How can you express this in r<strong>at</strong>io?<br />

1:25<br />

Monthly average frequency of occurrence of tropical<br />

cyclone in the Philippines. (Represent a number for each<br />

month and compare with the number of typhoons per<br />

month to form a r<strong>at</strong>io.)<br />

Jan-1 April-1 July-3 Oct-3<br />

Feb-1 May-1 Aug-4 Nov-2<br />

March-1 June-2 Sep-3 Dec-1<br />

Possible answers:<br />

1:1 4:1 7:3 10:3<br />

2:1 5:1 8:4 11:2<br />

3:1 6:2 9:3 12:1<br />

Based from the r<strong>at</strong>io being formed, let the pupils give an<br />

equivalent r<strong>at</strong>io to form a proportion. Wherein the<br />

product of the means and extremes are the <strong>sa</strong>me or equal.<br />

Ex:

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