Page 210 - Maths Skills - 7

208 Maths

Activity

Objective: To learn how to collect relevant data and present it in the form of a bar graph for deducing useful
information.

Pre-Requisite Knowledge: Concept of data collection.

Materials Required: Chart paper, graph paper, a pair of scissors.

Procedure: 1. For one week, collect data about the time at which sun rises and sets, from the newspapers or
television news channels.

2. Calculate the duration of daylight and that of the night for each weekday.
For example;

Duration of daylight on Monday
= Difference between the time of sunset and the time of sunrise on Monday.

Duration of night on Monday
= Difference between the time of sunrise on Tuesday and the time of sunset on Monday.

Observations: Draw the following table on the chart paper and record the data.

Weekdays Duration of daylight Duration of night

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

With the help of the table, draw the bar graph on the graph paper and then paste it on the chart paper.