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PROJECT WEEK2014
« INVENTIONS »
PowerPoint by Lisa Demangeat
WHAT IS AN INVENTION?Everything in the world (made by people)
to make our lives: easier, safer, and fun!
Why were these things invented?
How do they help your life?
OBSERVE AND DISCUSSTake a walk around your house.
How many inventions can you count?
Try to imagine what life was like before them.
People who create inventions are called inventors.
Inventors need to plan, do, and review a lot
before their inventions work.
What do you think this inventor (Clement Ader) was trying to invent?
PLAN DO REVIEW
The first airplane that flew was invented by the Wright Brothers.
But, they learned a lot from the inventors who had tried before them!
Yahoooo!
Did you guess an airplane?
People are always finding ways to improve inventions that already exist.
1927 20141834
1893 19272014
1893 1970 2000
Many inventions were created to help us save time.
Speaking of time….
Do you know what these inventions were used for?
Try to guess…
Did you guess for telling time?
A long time ago, when clocks and watches didn’t
HourglassTime candlesSundial
exist, people invented ways to keep track of time.
These are just some of them.
Good night Good morning
Thousands of years ago, people figured out the time of day by looking at the sun as it crossed the sky.
Good night Good morning
When the sun seemed directly over their heads,they would know it was half way between day and night.
Do you know what time that is? YES! Midday (12:00), lunch time!
But there was a big problem with only using the sun as a clock…
Can you guess what the problem was?
Yes! They couldn’t tell the time during the night!
So inventors kept
planning, doing,
Until…
and reviewing…
DRUM ROLL…
The first mechanical clock was invented, 600 hundred years ago, before electricity!
You had to wind it
up!
Different types of wind up clocks were used until electricity was invented.
Oh no! When do I go to school?
If you forgotto wind them up,they would stop
working!
Finally, electric clocks were invented 150 years ago.
Electricity made the clocks wind upall by
themselves.
What kinds of electric clocks do you have at home?
Digital clocks just have numbers.
Analog clocks have hands.
Small hand (Hour)
Big hand(Minutes)
Hour Minutes
Living with electric clocks and watches made life easier to organize.
It’s 8:10 (10 minutes after 8). Time to go to school!
It’s 12:00 (12 o’clock).Time for lunch!
It’s 7:00 (7 o’clock).
Time to get up!
Maybe I can
even design
a clock!
Wow! Clocks sure have changed over « time »!
Sundial Hour glass Water clock Time candle
Wind-up Clocks
Electric clocks
Check some of the links below to help you learn to tell the time. The links will only work in « slideshow » format
Next week, during Project Week, you are going to have the time of your life!
The project you will be making is a surprise, but here’s a little clue…
Takes some time, To tell the time,
We have no time to lose!
Songshttp://www.youtube.com/watch?v=0Yq_rztquuUhttp://www.youtube.com/watch?v=1eGkW3JnthIhttp://www.youtube.com/watch?v=Gnst_mkCEu4&list=PL955DD1B0A547F1F6Explaining how we measure timehttp://www.youtube.com/watch?v=HcVK7vL08PYBrainPOP login: americansection password: studentPart s of a clock.http://www.brainpopjr.com/math/time/partsofaclock/Telling time by the minutes (by 5’s). Warning: Gets too complicated after 2:44http://www.brainpopjr.com/math/time/timetotheminute/Game: Should watch links above, before playing.http://www.mathbuddyonline.com/lessons/flash/SamplePracticeFrame.php?frame=SamplePracticeFrame&path=/lessons/math/measurement/units/time/level1/time/us/&fileLink=m1h3c1t4p3.html&sampleFlag=1
