Sunnyvale
Saturday
Level 3
Mr. Rodney
Target 1
Lesson Type:
Continuation
Measurment
:
Time
Write and tell time to the nearest five minutes using analog and digital clocks.
Supporting targets:
1:
Understand the breakdown of hours into minutes.
2:
Recognize that a time on the hour will have the minute hand on the 12 on an analog clock and 00 on the digital clock.
3:
Apply knowledge of skip counting by fives to read an analog clock.
4:
Understand and use 24-hour notation (military time).
5:
Link digital, analogy, a.m., p.m., and military time.
Grade:
3rd
Vocabulary:
Standard Time, 24-Hour/Military Time, AM/PM, Elapsed Time, Hours, Minutes
Activities:
- · Reviewed skills learned in last week's class, i.e., elapsed time within the hour.
- · Applied learned skills to calculating elapsed time between any two times during the day using addition, subtraction, or a timeline.
- · Compared standard time to 24-hour military time, recognizing similarities and main differences.
- · Learned that, in 24-hour military time, any time after 1200hrs is PM in standard time.
- · Practiced converting military time to standard time, and vice versa.
Home Exploration
Challenge Problem:
- For Part 1, convert the Standard Times into 24-Hour Military Time.
- For Part 2, convert the 24-Hour Military Time to Standard Time. Make sure you remember to label AM or PM!
Challenge Data:
Part 1: 1) 5:45am 2) 1:20pm 3) 8:05pm
Part 2: 1) 0830 2) 1415 3) 2340
Guiding Questions:
- What is the difference between military time and standard time?
- If you have a military time where the hour is greater than or equal to 12, is the the time am or pm in standard time?
- You can draw a 24-hour timeline to compare military time to standard time.
Challenge Answer:
Part 1: 1)0545 2) 1320 3)2005
Part 2: 1) 8:30am 2) 2:15pm 3) 11:40pm