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Grade 2 Mathematics Week 11 | Student Textbook

Grade 2 | MATHEMATICS

WEEK 11 • STUDENT TEXTBOOK • DAYS 51–55

Read each lesson with a parent or teacher and study the worked example. Then answer the questions for that day in the Week 11 Practice Workbook.

Week 11 Student Textbook | Week 11 Practice Workbook | Week 11 Teacher Guide | Week 10 Student Textbook | Week 12 Student Textbook | Grade 2 index

Day 51: The Hour Hand and the Minute Hand

A clock has two hands. The short hand is the hour hand. It points to the hour. The long hand is the minute hand. It points to the minutes.

The minute hand moves around the clock once every hour. Each number on the clock stands for 5 minutes, so count by fives from the 12: the 1 is 5 minutes, the 2 is 10 minutes, and so on. When the hour hand is between two numbers, read the smaller number, except between 12 and 1, where the hour is 12.

Worked example: The hour hand is between the 7 and the 8. The minute hand points to the 4. What time is it?

  1. The hour hand has passed the 7 but not the 8, so the hour is 7.
  2. Count by fives to the 4: 5, 10, 15, 20.
  3. Write the hour, a colon, then the minutes.

Worked answer: 7:20.

Day 52: Analog and Digital Clocks

An analog clock has hands. A digital clock shows only numbers, such as 6:35. The number before the colon is the hour. The number after the colon is the minutes.

To show a digital time on an analog clock, put the minute hand on the number you reach when you count by fives to the minutes. Then put the hour hand just after the hour number. As the minutes grow, the hour hand moves closer to the next number.

Worked example: A digital clock shows 3:40. Where do the hands go on an analog clock?

  1. Count by fives to 40: the 8 is 40 minutes. The minute hand points to the 8.
  2. The hour is 3, and 40 minutes have passed, so the hour hand is past the 3, most of the way to the 4.

Worked answer: The minute hand points to the 8, and the hour hand is between the 3 and the 4, closer to the 4.

Day 53: a.m. and p.m.

Each day has 24 hours, so the hour hand goes around the clock twice each day. We use a.m. for times from midnight until noon. These are the morning hours. We use p.m. for times from noon until midnight. These are the afternoon and evening hours.

Seven o’clock can be in the morning or in the evening, so a.m. and p.m. tell which one we mean. Think about what you are doing. Breakfast at 7:00 is a.m. Bedtime at 7:30 at night is p.m.

Worked example: Ana eats breakfast at 7:15. Is that a.m. or p.m.?

  1. Breakfast is eaten in the morning.
  2. Morning times are a.m.

Worked answer: 7:15 a.m.

Day 54: Quarter Past, Half Past and Quarter To

An hour has 60 minutes. A quarter of an hour is 15 minutes, and half an hour is 30 minutes.

Quarter past means 15 minutes after the hour, so quarter past 6 is 6:15. Half past means 30 minutes after the hour, so half past 6 is 6:30. Quarter to means 15 minutes before the next hour, so quarter to 7 is 6:45.

Worked example: Write quarter past 5 as a digital time.

  1. Quarter past means 15 minutes after the hour.
  2. The hour is 5.

Worked answer: 5:15.

Day 55: Independent Check: Telling Time

Today you will answer on your own.

Use what you learned this week: read the hour hand and the minute hand, count by fives, use a.m. and p.m., and use quarter past, half past and quarter to.

Worked example: The hour hand is between the 10 and the 11. The minute hand points to the 7. What time is it?

  1. The hour is 10.
  2. Count by fives to the 7: 35 minutes.

Worked answer: 10:35.

Week 11 Student Textbook | Week 11 Practice Workbook | Week 11 Teacher Guide | Week 10 Student Textbook | Week 12 Student Textbook | Grade 2 index