Chapter 7: Time Goes on

Considering the calendar 2018,

Question 2:

Arrange the festivals in the order in which they come in the year.

Pongal, Guru Ravidas’s Birthday, Bihu, Onam, Raksha Bandhan, Gandhi Jayanti, Diwali, Milad-Ul-Nabi, Guru Nanak’s Birthday, Christmas Day.

Question 3:

Which festival comes at the beginning of the year?

Pongal

Question 4:

Which festival comes at the end of the year?

Christmas

CALENDAR MAGIC

Question:

Which is the number in the centre of the square?

13

Question:

How many such lines can you draw?

Four such lines can be drawn.

Question:

Add the three numbers on each of these lines. What do you notice?

5 + 13 + 21 = 39

6 + 13 + 20 = 39

19 + 13 + 7 = 39

12 + 13 + 14 = 39

The sum of the numbers in each of the lines is 39.

Question:

Now, look at the calendar of 2018. Also, look for the present month and draw any similar square in your notebook. Does the magic work for these?

For the month of November 2018,

6 + 14 + 22 = 42

8 + 14 + 20 = 42

7 + 14 + 21 = 42

13 + 14 + 15 = 42

The sum is the same, i.e., 42. The magic works here as well.

Question:

Is this magic possible on a 10 × 10 number chart? Go to the chapter ‘Fun with Numbers’ and check.

Let’s check with a 10 x 10 number chart.

Yes, the magic works in a 10 x 10 number chart, also.

The cross lines- 1 + 12 + 23+ … + 89+ 100 = 505

and 10 + 19 + 28+ … + 82 + 91 = 505

As there is no middle line, we have to get an average sum of both horizontal lines.

5 + 15 + 25+ … + 95 and 6 + 16 + 26 + … 96 = 505

The average sum of both vertical lines.

41 + 42 + 43 + … + 50 and 51 + 52 + 53 + … + 60 = 505.

Thus, the magic works here as well.

COMPLETE THE CALENDAR FOR AUGUST 2018

Question:

1. Colour all the Sundays in red.
2. On which day does this month end?
3. Write the number of days in this month.
4. What day is it on 13th August?
5. What is the date on the second Saturday?
6. Is the 21st a Sunday?
7. What is the day of the 29th? What will be the date on the same day next week?
8. How many Thursdays are there in this month?

1. The month ends on a Friday.
2. 31
3. Monday
4. 11^th August
5. No, 21^st is a Tuesday
6. Wednesday, 5^th September
7. 5 Thursdays

Question:

1. Which months in the calendar (2018) have 5 Sundays?
2. Is there any other day in any month which comes 5 times?
3. Can there be 6 Sundays in a month? Why?

1. April, July, September, and December.
2. Yes, there are days which come 5 times. For instance, there are 5 Fridays and 5 Saturdays in the month of June.
3. No, there can’t be 6 Sundays in a month. There can be at max 5 weeks in a month.

THE TRUE STORY OF PEDKI DEVI

Here is the final timeline.

Question:

Mark on the timeline when she was born.

Question:

In the blank box, draw a picture of Pedki as a newborn baby.

Do as directed.

Question:

Make your own timeline. Ask people around you and mark at least one thing that happened in each year of your life.

Do as directed.

Question:

Make timelines of people you admire. These can be from among your family, friends, teachers, etc.

Do as directed.

ONE DAY IN THE LIFE OF KUSUM

Question:

Write down the time for each picture.

For some pictures, the time is already written, and you must draw your hands on the clock. In others, you have to write the time shown by the clock.