10POP
achieved only
1) The popliteal is the distance from underneath the knee to the floor when a person is seated with legs bent 90 degrees with the feet flat on the floor, no shoes. As I look around the class, I notice my friends have different heights and armspans. I wonder if there is a relationship also between height and other bones of the body. Do taller people have longer popliteals, I suspect so because as we grow, our bones grow in proportion.
Our class is currently studying Leonardo De Vinci (image above) and his drawing called Vitruvian man. In his drawing, Leonardo stated several relationships that link parts of the human body to the height. Some are:
(a) the length of the outspread arms is equal to the height of a man (armspan)
(b) the distance from the elbow to the tip of the hand is a quarter of the height of
a man (cubit)
(c) from below the foot to below the knee is a quarter of the height of a man (popliteal)
So I am really interested in conducting an investigation into the claims he made. Although looking at the students in my class and studying his drawings and discovering how famous he was I predict his statements will be quite valid.
Problem:
My question is, I wonder if there is a relationship between height and popliteal in the students of 10POP? I think that as we grow in height our bones will grow in proportion so our popliteals will also lengthen as we get taller.:
Our class is currently studying Leonardo De Vinci (image above) and his drawing called Vitruvian man. In his drawing, Leonardo stated several relationships that link parts of the human body to the height. Some are:
(a) the length of the outspread arms is equal to the height of a man (armspan)
(b) the distance from the elbow to the tip of the hand is a quarter of the height of
a man (cubit)
(c) from below the foot to below the knee is a quarter of the height of a man (popliteal)
So I am really interested in conducting an investigation into the claims he made. Although looking at the students in my class and studying his drawings and discovering how famous he was I predict his statements will be quite valid.
Problem:
My question is, I wonder if there is a relationship between height and popliteal in the students of 10POP? I think that as we grow in height our bones will grow in proportion so our popliteals will also lengthen as we get taller.:
Plan:
Our group is going to investigate the relationship between height and cubit length of the students in 10POP. To measure the heights of students we will use a fixed vertical ruler on the wall positioned 1m above the floor. This is called the height measuring station. To measure popliteal length, we will use a tape measure. Both measured rounded up to the nearest cm.
To manage sources of variation (being consistent) in height measurement, our group will:
1) Shoes off, feet flat on the floor, standing straight, (to remove error due to differing sole thickness).
2) measuring to the nearest cm
3) Use a book, level on top of the head to ensure a correct reading.
To manage sources of variation (being consistent) with popliteal, our group will,
1) Sit still and upright in a chair with feet flat on the floor, no shoes. Knees bent at a 90 degree angle.
2) Use the tape measure, measure from floor next to the foot to underneath the knee to the nearest cm.
In my group of three, Wendy will place a hard ruler on top of Maniah's head and etc etc...
Our group is going to investigate the relationship between height and cubit length of the students in 10POP. To measure the heights of students we will use a fixed vertical ruler on the wall positioned 1m above the floor. This is called the height measuring station. To measure popliteal length, we will use a tape measure. Both measured rounded up to the nearest cm.
To manage sources of variation (being consistent) in height measurement, our group will:
1) Shoes off, feet flat on the floor, standing straight, (to remove error due to differing sole thickness).
2) measuring to the nearest cm
3) Use a book, level on top of the head to ensure a correct reading.
To manage sources of variation (being consistent) with popliteal, our group will,
1) Sit still and upright in a chair with feet flat on the floor, no shoes. Knees bent at a 90 degree angle.
2) Use the tape measure, measure from floor next to the foot to underneath the knee to the nearest cm.
In my group of three, Wendy will place a hard ruler on top of Maniah's head and etc etc...
Data:
Analysis:
Just looking at the scatter plot I can see a positive linear trend in the data.
Trend:
Looking at my graph, I notice that there is a linear relationship between height (cm) and popliteal length (cm) of the students in 10POP. This is because the data points form a line with a gradient or slope. I don't see a curve in the data points.
Association:
I can see that the association is positive because the trend line slopes upwards to the right, so as the heights of students increase so does their popliteal length. This also means that taller students tend to have a longer popliteal lengths.
Strength:
I think the strength of the relationship is a moderately strong one. I can see that most of the points are not far from the trend line and some are.
Conclusion:
In conclusion I think there is a fairly moderate positive linear relationship between the heights of students in 10POP and their popliteal length. Taller students have longer cubits than shorter students.
Just looking at the scatter plot I can see a positive linear trend in the data.
Trend:
Looking at my graph, I notice that there is a linear relationship between height (cm) and popliteal length (cm) of the students in 10POP. This is because the data points form a line with a gradient or slope. I don't see a curve in the data points.
Association:
I can see that the association is positive because the trend line slopes upwards to the right, so as the heights of students increase so does their popliteal length. This also means that taller students tend to have a longer popliteal lengths.
Strength:
I think the strength of the relationship is a moderately strong one. I can see that most of the points are not far from the trend line and some are.
Conclusion:
In conclusion I think there is a fairly moderate positive linear relationship between the heights of students in 10POP and their popliteal length. Taller students have longer cubits than shorter students.