Telling time by the minute

1. Telling time by the minute By Maggie Mills

2. Telling Time to the Nearest Minute • Second graders will learn how to read a digital and analog clock by the minute and practice their time reading skills through interactive quizzes. • Subject: Second Grade Mathematics • Topic: Time Measurement • Objectives: • The children will think about how the different units of time are connected, for example there are 30 minutes in one half-hour. • They will also learn about the different features on a clock, such as the minute hand and minute dashes. • The children will have to tell time by the closest minute interval on an analog clock. • Through interactive quizzes, the children will be challenged to draw from knowledge they have and use their new knowledge to practice reading time onanalog clocks. • Ohio Academic Content Standards for Second Grade: • Measurement Standard • 1. Identify and select appropriate units of measure for: • Time – hours, half-hours, quarter-hours or minutes and time designations, a.m. or p.m. • 2. Establish personal or common referents for units of measure to make estimates and comparisons; e.g., the width of a finger is a centimeter, a large bottle of soda pop is 2 liters, a small paper clip weighs about one gram. • 3. Describe and compare the relationships among units of measure, such as centimeters and meters; inches, feet and yards; cups, pints and quarts; ounces and pounds; and hours, half-hours, and quarter-hours; e.g., how many inches in a foot? • 4. Tell time to the nearest minute interval on digital and to the nearest 5 minute interval on analog (dial) timepieces.

3. Procedures: The children’s interactive lesson begins on slide four with an introductory film clip and reasons why time is so important. Slide five is the homepage for the interactive lesson. Here, students can click on the clock icons to jump to a different slide that answers the questions listed on the homepage. It is recommended that the children move through the questions in the order the questions are listed on the homepage. The other pages the children can jump to have a home icon in the bottom right corner that they can click on whenever they want to return to the homepage.At the end of their exploration, the children will reach the practice games link. The clock icon will lead the children to three time reading questions. The children can click on the time they believe is correct and move to the next question when they answer the question correctly. The blue arrows in the practice games section allows the students to move back to the previous viewed page to check answers. • Evaluation: The lesson will build on what the children know about time already, such as hours and half-hours. Through interactive links, the children will make connections between past knowledge and their new knowledge about minutes. The links also break down aspects of minutes to make sure the children understand the concept as they explore the slides. The practice questions will allow the teacher to assess what the children understand about reading time to the nearest minute, and what they still need to work on. • Materials: Computers, PowerPoint program, saved PowerPoint exploration

4. Hello class! • Oh no! We do not want to be late like the White Rabbit! • Time is important for measurement, such as how fast you can run or how long recess will take everyday! • Watch the short video clip. Then, we can learn about minutes!

5. Telling Time to the Nearest minute • What does one minute feel like? • What does one minute look like on an analog clock? • How are minutes related to one hour? • How are minutes related to one half-hour? • Reading time by the minute. • Practice Games!

6. What does one minute feel like? • Click on the orange play button. • When a light purple webpage appears, click PLAY. • You will then see a box on the screen that says: TIME TAKEN: ___ Minutes ___ Seconds • Wait until the numbers count from 1 second to 1 minute. • The time you wait is how long one minute is!

7. How are minutes related to one hour? • Look at the picture of the clock below. • There are 60 minute marks on the clock. • Why? This is because there are 60 minutes in one hour. • You would have to sit through one minute 60 times to feel one hour!

8. Minutes on analog clocks • On this analog clock, the blue hand is the minute hand. • The blue dots that are in a circle on the clock are one minute marks. • Each time the blue minute hand moves from one dot to the next dot, that means one minute has passed.

9. How are minutes related to one half-hour? • Look at the picture of the clock below. • As we know, the six on the clock marks one half-hour. • There are thirty minute marks on half of the clock. • Why? This is because there are thirty minutes in one half-hour. • You would have to sit through one minute thirty times to feel one half-hour!

10. Reading time by the minute • When you read a clock by the minute you first say the hour. • Then, you look at the minute hand and read how many minute marks have passed starting at the 12. • The numbers around the clock are shortcuts you can use instead of counting all the minute marks. 1= 5 minutes 6= 30 minutes 11= 55 minutes 2= 10 minutes 7= 35 minutes 12= 60 minutes 3= 15 minutes 8= 40 minutes 4= 20 minutes 9= 45 minutes 5= 25 minutes 10= 50 minutes

11. Practice Games! • For each question, read the time on the clock to the nearest minute. • Time Question One • Time Question Two • Time Question Three

12. Question One • What time is on the clock? 11:53 or 12:13

13. Question One answer • Yes! Awesome! • The clock reads 11:53. • Next Question!

14. Question One Answer • Oops! Try Again!

15. Question Two • What time is on the clock? 6:03 or 6:15

16. Question Two Answer • Yes! Awesome! • The clock reads 6:15. • Next Question!

17. Question Two Answer • Oops! Try Again!

18. Question Three • What time is on the clock? 10:10 or 10:11

19. Question Three Answer • Oops! Try Again!

20. Question Three Answer • Yes! Awesome! • The clock reads 10:11.

21. References Disney, Walt. (Director). (1951). Alice in Wonderland [Motion Picture]. Walt Disney. Retrieved March 16, 2011, from http://www.youtube.com/watchv=wDO5ea8MwgY Ohio Department of Education Teaching. Mathematics academic content standards. Retrieved March 16, 2011, from http://www.ode.state.oh.us/ Stop the clock. Retrieved March 16, 2011, from http://resources.oswego.org/games/StopTheClock/sthec4.html Van de Walle, J. A. & Lovin, L. H. (2006). Teaching student-centered mathematics: Grades k-3. United States: Pearson Education.