Measurement - Time
Thank you to Mrs Anderson for the lesson ideas on time :)
The prescribed learning outcomes for grades 4 and 5 with regards to time/measurement are as follows:
Grade 4:
how to tell time with digital and analog clocks, using 12 and 24-hour clocks
Grade 5:
duration, using measurements of time and elapsed time
Week 6 - AM/PM
Learning about AM/PM
FUN FACT:
When the dinosaurs were alive, there were 370 days in a year. The Earth's spin is getting slower because the moon's gravity is acting as a drag, so days are getting longer, by about 1.7 milliseconds per century.
Am/Pm Challenge:
Week 5
Video: Review elapsed time using a number line to solve word problems.
FUN FACT
Lightning hits the earth at a rate of 6,000 strikes per minute, or 100 strikes per second. Luckily, the odds of being struck by lightning are pretty low.
Elapsed Time Challenge:
Use a number line (or another strategy) to determine the time from when you woke up until you had your lunch. How many hours, minutes and seconds?
Week 4
Video : Elapsed time counting backwards using a number line
Fun fact:
Time passes faster for your face than for your feet (assuming you're standing up). Einstein's theory of relativity dictates that the closer you are to the centre of the Earth, the slower time goes – and this has been measured. At the top of Mount Everest, a year would be about 15 microseconds shorter than at sea level!
Elapsed time challenge:
We got stopped by a train for 32 minutes. We crossed the railroad tracks after the train passed at 6:12. What time did we get stopped by the train?
Week 3
Watch this video (elapsed time using a number line) and then solve the problems below.
FUN FACT:
Because light takes time to reach us, everything we see is in the past. The sun you can see out of the window is 8 minutes and 20 seconds old! The light from our nearest star, Proxima Centauri, is 4 years old!
Div. 1 started baking a cake at 9:00 am. They finished baking their cake at 10:30.
Div. 2 began baking a cake at 1:05 pm and finished baking their cake at 2:25 pm.
Div. 3 began baking their cake at 2:45 pm and finished baking their cake at 3:50 pm.
- How long did it take each division to bake their cake?
- Which division took the least amount of time to bake their cake?
Week 2
FUN FACT:
On the planet Mercury, a single day is two Earth years long!
Watch video: (telling time with analog and digital clocks)
How long can you keep your eyes open without blinking?
How long does it take you to do 25 jumping jacks?
Set your timer for 2 minutes. Put your arms out to your sides. GO! Why do you think that felt like a long time?
Week 1
For hundreds of years, people used burning candles, dripping water (known as water clocks), or sifting sand to tell time’s passage. People still use sand clocks or hour glasses to keep time.
Create a list of some different activities you could do within a second, a minute, an hour, and a day.
Challenge: How many times can you write your name in a minute?