Admin EditMaths Home Learning
Dear Maths Class,
For this activity you will need a ruler that measures in centimetres and millimetres. I will lend you on tomorrow if you do not have one.
You should all have this sheet in your books:
http://www.patana.ac.th/UploadCentre/Staff/BEHA/Measure.pdf
Estimate (have a sensible guess) of how long each line of the boat is in millimetres. Write it down. Then measure it. Write it down. Work out the difference between your estimate and the actual length.
e.g. Estimate: 23mm Actual: 31mm difference 8mm. Add up all your differences. This is your score.
I have also set two measurement tasks on my maths for extra practise. These are optional.
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Stuffing Tigers with 1C
Well done 5B, you were responsible and mature to help your Year 1 buddy make a stuffed Tiger.
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THE SIZE OF THE SOLAR SYSTEM (To Scale)
What would it look like if the planets were as close to Earth as the Moon?
From the fruit and veg choose eight fruits that you think represent the size of the planets to scale. The Sun is still a beach ball. Do you need a clue? What could you use to help compare the sizes? What is the diameter of a sphere? Choose your planets and put them on a length of toilet roll in the right order from the sun. Use one sheet of toliet roll to label your planets.
Did we use the same fruits and vegetables?
The distances between the planets are VERY, VERY LARGE. In your group take one toliet roll. The distance between The Sun and Neptune is 150 sheets (to scale). Lay out this length.
Where do you think the other seven planets go? Place the planets where you think they go. Here are the real distances (to scale):
Sun (start of toliet roll)
Mercury (peppercorn) +2 sheets
Venus (grape) +1.5
Earth (grape) +1.5
Mars (pea) +2.5
In between Mars and Jupiter add some sand - this is the asteroid belt.
Jupiter (guava) +18.5
Saturn (apple) +21.5
Uranus (manow) +48
Neptune (manow) +54.5
Note these down in your general work books.
How close were your first attempts to the real (to scale) distances?
So there we have a scale model of The Solar System. Or do we? Is it completely accurate? Watch Bill Nye, The Sceince Guy, and see if you can spot where our model goes wrong.
So surely we can't make a model of The Solar System to scale that is accurate for both the size of the planets and the distance between them at the same time? Or can we? We will need some pretty small things for the planets and lots of space. Patana's a pretty big school.......
Here is a possible script we could adapt to make our own Solar System video.
http://www.patana.ac.th/UploadCentre/Staff/BEHA/5B_Solar_Sytem_Tour_Video_Script_To_Adapt.docx
Sun (melon)
Mercury (sesame seed) 10m from the sun
Venus (peppercorn) 19m from the sun
Earth (peppercorn) 26m
Mars (barley) 40m
Sand for the asteroid belt inbetween Mars and Jupiter
Jupiter (grape) 135m
Saturn (pea) 247m
Uranus (bead) 496m
Neptune (bead) 777m
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