Page 193 - NUMINO TG_2A
P. 193
Activity 1 Time to the Half- Hour
jOb ective Express 30 minutes in various ways.
1. Textbook Instructions Activity 1 Time to the Half-Hour
Explain 4 different ways of expressing 30 Learn different ways to read the time. eight thirty
minutes. Demonstrate on a model clock half past 8
while explaining, or have students use 11 12 1 30 minutes after 8
model clocks while you explain. When you 10 2 30 minutes before 9
move the minute hand, the hour hand will 93
move correspondingly. This will help 84
students understand how clocks work.
765
Show 8: 30 on a clock and explain that the
time is between 8 and 9 o’clock. Then, 8 : 30
teach them to say “half past” the hour, since
30 minutes is half of an hour. 1 Read each time shown on the clock in different ways.
Ask students how many minutes have past
after 8, and how many minutes are left 11 12 1 after 11 12 1 before 11 12 1
before 9. Explain how to express time using 10 2 10 2 10 2
the relationship between “30 minutes 93 30 minutes 93 30 minutes 93
before” and “30 minutes past” the hour. 84 after 3 84 before 4 84
765 765 765
3 : 00 3 : 30 4 : 00
3 o’clock three thirty 4 o’clock
half past 3
8 30 minutes past half 30 minutes past 9
o’clock 30 minutes before past 8
30 minutes before o’clock
8 30 a b
eight thirty
half past 8 11 12 1 11 12 1
10 2 10 2
30 minutes after 8 93 half past 4 93 half past 9
84 30 minutes after 4 84 30 minutes after 9
30 minutes before 9 30 minutes before 5 30 minutes before 10
765 765
4 : 30 9 : 30
1. Explain how to express times using the 108
time 3:30 shown on their textbook, and have
students solve the problems.
2. Build Understanding
Is it 4:30 or 5:30? 11 12 1 3
Students make common errors by reading the time shown as 5:30. 10 2 4
Have them discuss how they should read the time when the hour hand is halfway 93 65
between 2 numbers. 84
Explain that the hour hand moves clockwise. It moves in the direction of 12 to 1. This
shows that the hour hand has not yet reached 5:00. So the correct time is 4:30. In 765
other words, the number that the hour hand has passed is the current hour.
176 NUMINO Teacher s Guide
jOb ective Express 30 minutes in various ways.
1. Textbook Instructions Activity 1 Time to the Half-Hour
Explain 4 different ways of expressing 30 Learn different ways to read the time. eight thirty
minutes. Demonstrate on a model clock half past 8
while explaining, or have students use 11 12 1 30 minutes after 8
model clocks while you explain. When you 10 2 30 minutes before 9
move the minute hand, the hour hand will 93
move correspondingly. This will help 84
students understand how clocks work.
765
Show 8: 30 on a clock and explain that the
time is between 8 and 9 o’clock. Then, 8 : 30
teach them to say “half past” the hour, since
30 minutes is half of an hour. 1 Read each time shown on the clock in different ways.
Ask students how many minutes have past
after 8, and how many minutes are left 11 12 1 after 11 12 1 before 11 12 1
before 9. Explain how to express time using 10 2 10 2 10 2
the relationship between “30 minutes 93 30 minutes 93 30 minutes 93
before” and “30 minutes past” the hour. 84 after 3 84 before 4 84
765 765 765
3 : 00 3 : 30 4 : 00
3 o’clock three thirty 4 o’clock
half past 3
8 30 minutes past half 30 minutes past 9
o’clock 30 minutes before past 8
30 minutes before o’clock
8 30 a b
eight thirty
half past 8 11 12 1 11 12 1
10 2 10 2
30 minutes after 8 93 half past 4 93 half past 9
84 30 minutes after 4 84 30 minutes after 9
30 minutes before 9 30 minutes before 5 30 minutes before 10
765 765
4 : 30 9 : 30
1. Explain how to express times using the 108
time 3:30 shown on their textbook, and have
students solve the problems.
2. Build Understanding
Is it 4:30 or 5:30? 11 12 1 3
Students make common errors by reading the time shown as 5:30. 10 2 4
Have them discuss how they should read the time when the hour hand is halfway 93 65
between 2 numbers. 84
Explain that the hour hand moves clockwise. It moves in the direction of 12 to 1. This
shows that the hour hand has not yet reached 5:00. So the correct time is 4:30. In 765
other words, the number that the hour hand has passed is the current hour.
176 NUMINO Teacher s Guide
