Telling time to the half hour- math grade 2 - lesson 58

Yesterday we learned about the minute hand and how it moves around the clock. When the minute hand is pointing at the 12 and the hour hand is pointing directly at a number like 4, it is exactly an hour, such as 4:00. No minutes have passed. It is 4:00. When the minute hand is pointing down at the 6, it has moved halfway around the analog clock. An hour has 60 minutes. Half of 60 is 30, and the minute hand has gone halfway around the clock, so the time is now 4:30, and the hour hand is between the 4 and the 5.In today’s lesson, we continue to practice reading and writing time to the hour and half hour. we match analog clocks to digital clocks showing the same time.

1.TEACHER DO: Display the large model clock you made along with a real (or teaching) analog clock and digital clock.

TEACHER DO: Move the hands on the clock to show the times you are discussing.

TEACHER SAY: Today we are going to continue to practice reading and writing time to the hour and the half hour. Take out your clock and your student book and turn to page Lesson 58: Apply.

STUDENTS DO: Take out clock and student book and open to page Lesson 58: Apply.

TEACHER SAY: There are two analog clocks at the top of the page. Under each of them is a digital clock. We will practice reading and writing the time for these clocks together, and then you will practice on your own. I will say a time. You will show the time on your clock. Then you will draw the hands on the first clock in your student book to show the time. Remember that the hour hand is shorter than the minute hand. When you have finished, give me a Thumbs Up.

TEACHER DO: State an hour time, such as 2:00. Wait for students to show it on their clock and draw the hour and minute hands in the student book. Then choose a student to show the time on your large clock.

STUDENTS DO: Show 2:00 on their clock and then draw the hour and minute hands in the student book. Give a Thumbs Up when finished. Selected students show the time on your large clock.

TEACHER SAY: Good, the clock shows 2:00. The minute hand is pointing up to the 12 and the hour hand is at the 2. In your student book, record the digital time that this analog clock shows. Give me a Thumbs Up when you are done.

STUDENTS DO: Record 2:00 in the digital box. Give a Thumbs Up when done. Selected student writes 2:00 on the board.

TEACHER SAY: Great. I gave you a time. You showed the time on your clock, showed the time on the clock in your student book, read the time, and wrote the time. Let’s try one more together before we move on. Show 9:30, or half past 9, on your clock. Then draw in the hands on the second clock in your student book. Give me a Thumbs Up when finished.

STUDENTS DO: Show 9:30 on their clock and then draw the hands in the student book. Give a Thumbs Up when finished. Selected students show 9:30 on the large clock and write 9:30 on the board.

TEACHER DO: Assist the students as needed or allow them to ask other students for help. Make sure the hour hand is pointing between 9 and 10 and the minute hand is pointing at the 6. Explain the position of the hour and minute hands to reinforce the concept for students who need additional support.

2.TEACHER SAY: For the rest of the math time today, you will play Time Matching with a partner. You will get a set of game cards. Some cards have an analog clock and some cards have digital times. Some clocks will have exact hours and some will have half hour times. With your partner, lay out the cards and match the analog times to the digital times.

TEACHER DO: Show an example of the cards to the class.

TEACHER SAY: We will use Hands Up, Pair Up to get partners today. Once you have found your partner, go sit with them. I will bring you a set of game cards and you can start matching the analog clock times to the digital times. You can use your own clocks for help if you need to.

STUDENTS DO: Use Hands Up, Pair Up to find a partner. Move to sit with their partner.

TEACHER DO: Hand out game cards to partners.

STUDENTS DO: Work with partner to match analog clock times to digital times.

TEACHER DO: Walk around the room, observing students as they work. Make note of students who may need additional instruction or practice. If partners finish finding all the matches and there is time left, you can have them play again or quiz each other: one student shows a digital time card and the other student makes the time on their clock. When Learn time is over, use an Attention Getting Signal to bring the group back.

TEACHER SAY: Nice work today. I will collect your game cards. Give your partner a high fi ve and return to your seats. You can put away your student book and pencil.

TEACHER DO: Collect game cards.

STUDENTS DO: Return to seats and put away student book and pencil.