Monday, March 10, 2014
POTD A spotlight rotates 36° every four minutes. How many more degrees will it take to make a full rotation? How many more rotations will it need to make? How many more minutes will it take?
Homework Review
Guided/ Independent
Guided/ Independent
Tuesday, March 11, 2014
POTD If a sprinkler rotates a total of 120 degrees, how many one-degree turns has the sprinkler made? Explain how you know.
Homework Review
Quiz Time Remember: To convert from larger units to smaller units, multiply. To convert from smaller units to larger units, divide. Self-correct….always check your work!!!
Wednesday, March 12, 2014
POTD The minute hand on a clock rotates one-degree at each interval. If it is 10:45 how many one-degree turns has the minute made?
Homework Review
Time
The Hands of Time 60 5 There are 60 minutes on a clock face. Skip count by fives to count the minutes with me. 55 10 15 50 20 45 25 40 35 30
The Hands of Time Count the numerals on the clock. There are only 12 hours on a clock face. So, the hour hand is a short hand.
“Minute” is a long word. The minute hand is the longer hand. “Hour” is a short word. The hour hand is the shorter hand. hour
When the minute hand is pointing to 12, read the time as “o’clock” When the minute hand is pointing to 12, read the time as “o’clock”. In this case, the hour hand is pointing to the 3 and it is “three o’clock”.
Four Quarters If we were to slice the clock into 4 equal sections, we would have 4 QUARTERS. Each quarter would represent a 15 minute section.
A Quarter After When the minute hand is pointing to the numeral 3, we say that the time is “A quarter after/past _____.” Here, the clock shows a quarter past seven, or 7:15.
A Quarter Til/To When the minute hand is pointing to the numeral 9, we say that the time is “A quarter til/to _____.” Here, the clock shows a quarter to five, or 4:45.
Half Past When the minute hand is pointing to the numeral 6, we say that the time is “Half past _____.” Here, the clock shows half past 2, or 2:30. Notice how the hour hand is half-way in between the 2 and the 3.
AM/PM 12:00 AM is MIDNIGHT (We are sleeping) 12:00 PM is NOON (lunchtime) When we say AM, we are referring to the hours before NOON. When we say PM, we are referring to the hours past NOON.
Important Facts About Time 60 seconds= 1 minute 60 minutes= 1 hour 24 hours= 1 day 30 minutes= 1 half hour 15 minutes= 1 quarter hour
Guided/Independent
Thursday, March 13, 2014
POTD A sprinkler rotates 45° every 30 seconds. How many rotations will the sprinkler make? How long will it take the sprinkler to make a complete rotation?
Homework Review
Elapsed Time
Finding Elapsed Time Given a starting time and an ending time, find out how much time was spent (elapsed time). Given a start time and the amount of time spent, tell the finishing time. Given an ending time and the amount of time spent, tell the starting time.
Step 1 Count the Hours For example: 7:10 – 10:55
Step 1 Count the Hours For example: 7:10 – 10:55 3 hours
Step 2 Count the Minutes For example: 7:10 – 10:55
Step 2 Count the Minutes For example: 7:10 – 10:55 45 minutes
Step 3 Write the elapsed time 3 hours and 45 minutes
Mountain Number Line Strategy EX: Joey was dropped off at the movie theater at 4:40 pm. His mom picked him up at 7:37pm. How long was Joey at the movie theater? Add the total time.
EX: How long is the movie? I started watching a movie at 3:30 pm and it ended at 4:45 pm.
EX: How much time is there between school and bedtime? How much time is there between the time school is out (3:40 pm) and bedtime (8:15 pm)?
Find the Ending Time What time is 4 hours and 30 minutes from 6:55?
Find the Start Time What time did we start on our trip if we arrived at 8:17 and it took 3 hours and 10 minutes?
Find the Start Time What time do I need to wake up if I have to be at school at 8:15 am and it takes me 1 hour and 45 minutes to get ready?
Guided/Independent
Additional Practice
Friday, March 14, 2014
POTD What is the measurement of each fraction if the entire circle is 360 degrees?
Homework Review Use a number line to figure out the elapsed time between the following pairs of times: 1:00 to 4:30 2. 2:27 to 2:57
#1 Elapsed Time Practice Jonas left home at 10:15 a.m. to head to the pool. He arrived at 10:37a.m. How long was his ride?
What time did she arrive at the store? #2 Elapsed Time Practice At 4:33 Shelly left the grocery store. She spent 1 hour and 16 minutes shopping. What time did she arrive at the store?
# 3 Elapsed Time Practice Devin jogged with his dog from 1:14 p.m. to 3:03 p.m. He stopped for a 15 minute break. How long did he spend jogging?
#4 Elapsed Time Practice Oprah and Gayle left Chicago at 8:00 a.m. and arrived in Cleveland at 11:43 a.m. They stopped for lunch and were back on the road at 1:15 p.m. They arrived in Erie, PA at 9:16 p.m. How much time did they spend driving? How long was their lunch break?
#5 Elapsed Time Practice The prom decorating committee arrived at the high school at 4:30 to set up. The prom started at 7:30p.m. and ended at 1:00 a.m. The decorating committee left when the prom ended. How much time did the committee members spend at the school on prom night? What information in this problem is not needed?
Guided/ Independent
Guided/Independent 1) Sheila spent 4 hours working on a craft project. She started at 12:30 P.M. What time did she finish? Start ___________ End ______________ Elapsed ______________ 2) The mom ran errands for one hour and 45 minutes. If she left at 2:15 P.M., what time did she return? 3) Julia worked on her chores from 3:15 P.M. until 4:00 P.M. How long did she work? 4) The baseball game started at 7:05. It ended at 9:15. How long was the baseball game? 5) The Smiths went to dinner at 5:45 P.M. and returned home at 7:30 P.M. How long were they gone? 6) Maggie took a walk. She left at 10:30 A.M. and got home at 1:45 P.M. How long was she gone? 7) The school carnival began at 10:00 A.M. and ended at 1:45 P.M. How long was the carnival? 8) The turkey needs to cook for 5 hours and 30 minutes. If it is put in the oven at 1:00 P.M., what time does it need to come out of the oven? 9) Paul ran a half marathon in one hour and 50 minutes. If he started running at 7:30 A.M., what time did he finish? 10) Abby took a nap from 12:30 P.M. until 3:00 P.M. How long was her nap?
Friday Homework Record the times for 5 different activities this weekend in the provided chart and find the elapsed time. Activity Start Time Elapsed Time End Time Went to bed Friday Night (start)…Woke up on Saturday Morning (end) Write a 5 sentence summary of your weekend activities.
Workshop Quiz Am I missing the start time, end time, or elapsed time? Check the hour hand…did I record the correct hour? As always….Did I self-correct?