Thursday, February 27, 2014

Bicycle Prediction Results

The results for the Pedal Predictions are in. I can't believe how close the actual results were to your hypotheses! The task was to predict (for four different gears) how many pedals it would take for my bike to travel across the school (approximately 468 feet). You had to make this prediction without moving the bike. The top 6 groups did not "miss" by more than one rotation of a pedal for any of the four gears. That's amazing, unless one of you broke into the school, stole my bike, and tested it out for real. I might have to check the cameras. Congratulations, learners. See THE RESULTS for yourselves.

In a comment below, answer this: What was the most important factor in figuring this problem out?

83 comments:

Brenna H said...

I think the most important thing is knowing how far one pedal will get you

Anonymous said...

Being accurate in all your measurements and knowing what you are doing.

Bailey M.

Miles said...

Easily the most important thing was knowing the cirumference of the tire.

Anonymous said...

The math and the process was the most important part in learning this lesson

Anonymous said...

I think the most important thing is seeing the distance it take for one petal

Anonymous said...

I think the most important factor is knowing all the measurements and having a good group to help you.

Anonymous said...

The most important thing was getting the right measurements. If you got the right measurements, it was easer to figure out. You also had to know to do the math correctly.

Anonymous said...

I believe the most important factor was the multiple different measurements, as if we messes up on any of them, the whole problem could be screwed up.

Anonymous said...

I think that measuring the bike correctly and the length of the hallway is the best way to figure it out.

Anonymous said...

I think it was figuring out the math because if you didn't have your math correct you probably didn't win

Anonymous said...

I think figuring out the distance and all the adding and multiply and dividing to figure out the distance and number pedals.

Hunter o said...

The circumference of the tires

Anonymous said...

The work that you do needs to be exact

Anonymous said...

I think the most important thing about this was the measurement of the bike and how long it is.

Anonymous said...

The most important factor is difficult to choose. One thing that really advanced our research, if you will, is the ratio of teeth to chain links. From that we found the length of each pedal and how many pedals it would take to get from each end of the hallway.
-Kirsten

Anonymous said...

We figured out the ratio of teeth to chain links. That was very helpful. From that we figured out the length of each pedal.

Anonymous said...

The most important part in this project is the measuring
-Adam Clemens

Kelsey said...

The most important factor was figuring out the measurements of the bike and the distance.

Anonymous said...

The most important factor in figuring this problem out was having exact calculations and measurements

Taylor said...

The importance of this was to estimate how the pedals will move and how many until you get to your destination.

Tatum L. said...

We knew all of the data, but didn't know how to configure it. That was probably the hardest part.

Lindsey Gauthier said...

Estimating how hard or easy the petals would move.

Ben m. said...

It was calculating everything for the chains and everything.

Anonymous said...

Finding out how any teeth are on the gears.

Andrew hershberger said...

Counting the teeth on the chain wheels

Carson Hanna said...

Counting the gears and the distance per pedal.

Caleb said...

Counting the teeth on the gears.

Anonymous said...

Getting the correct measurements

Anonymous said...



The distance per pedal for each different chain

Anonymous said...

the most important thing would be to count the right smount of teeth

Anonymous said...

I think the most important factor is the distance traveled per pedal by each gear. -Grace

Anonymous said...

The most important factor to me was the distance traveled on each gear.

Anonymous said...

I think the most important factor in figuring this out would have to be the distance the tire and gear travels.

Anonymous said...

Knowing the gear ratio.

Anonymous said...

Figuring how many times the wheele routates and how big and how fasr the wheele rolls

Anonymous said...

I think the most important part was knowing how the gears work

Anonymous said...

The most important part in solving this problem is finding out the equations.

Matthew pearson said...

How long the hallway was. It decided what you would divide by

Anonymous said...

To figure this problem out you have to find out all the right measurements then put them all together.

Anonymous said...

The most important factor for this experiment would be getting the correct measurements.

Anonymous said...

To figure out the problem you have to get all the right measuments.

Anonymous said...

The ratio of the rotation of petal to rotations of tire.

Anonymous said...

The most important factor for figuring this problem out was probably figuring out the right equation to use.

Anonymous said...

The distance the bike will go with each pedal. The size of the gears matter also.

Anonymous said...

I think it would've been more important to get better measurements and use a better formula to find the number of pedals.

Anonymous said...

For my group it was counting the teeth on the gears.

Anonymous said...

I think some of the most important factors is to have all of the right measurements and to make sure the hallways are cleared so nobody gets hit by a teacher riding a bike.

Anonymous said...

I think we needed better measurements and a better formula to get a more accurate measurement

Anonymous said...

The distance the bike will go with each pedal. The size of the gears matter also.

Anonymous said...

I think that the most important is to get the right measurements

Anonymous said...

The most important factor was the equation because you have to have it before the whole thing can fit together. Or the actual bike.

Anonymous said...

The most important factor in figuring this problem out was knowing what information you were looking for.

Izzy Gartner said...

I think that the most important factor for figuring out this problem is to measure correctly, and to measure the right things on the parts of the bike.

Anonymous said...

I think the most important things about thie is how many teeth where on each chai.

Anonymous said...

I Think the most important factor in figuring this out was the exact measurements of the bike parts and the rounding of answers.

Allison said...

I think the most important factor was having accurate measurements!

David Wing said...

The most important factor I believe was the amount of teeth on the gears and chain rings.

Anonymous said...

I think one of the most important factors is getting the math right and knowing what to do with the information you've gathered.

Anonymous said...

I think the most important thing in figuring this out is knowing what you are doing

Callum H said...

I think the most important factor in figuring this problem out was figuring out you had to use the gear ratios/# of teeth, and be extremely accurate in your measurements.

Karly Tomlinson said...

I think the most important factor was making sure all of the measurements are correct.

Anonymous said...

The amount of teeth on the gears and chain. Also the correct measurements were important.

Marissa S. said...

I think that finding out all the gear ratios and the length of the bike was quite important.

Kenzie said...

The most important stuff to know is knowing enough, and knowing how to use your data.

Anonymous said...

The most important part was figuring out the measuring of all of the different parts of the bicycle.

Aaron V said...

The most important part of doing all of the measurement s and calculating them to get your answer.

Katie Wild said...

The most important factor I think was getting the correct measuring fir the hallway. If you have everything, but not the measurement of the hallway, it will not be correct.

Kayla said...

I think the distance you go is most important.

Olivia Hjerleid said...

Everything was important; we used about 10 different numbers and 5 different techniques to get our answers.

Alexis A said...

I think that the length of the hallway was the most important factor.

Anonymous said...

Gear ratio and distance in my opinion

Bo Ryan said...

The most important factor was the gear ratio or the bike

Anonymous said...

The size of the gears.

Mason said...

The gear ratio.

Tyler dixon said...

Gear ratio

Cheyenne said...

I think the size of the gears!

Anonymous said...

Gear ratio and distance in my opinion a

Mattea S. said...

I think the most important factor was knowing how far the bike goes in one pedal using each gear and chainring. If you find how many pedals it takes to go 1 foot, then you can find out how many pedals it would take to go down the whole hallway.

Kiersten Olson said...

I think the most important factor to this activity was trying to find how far one pedal can go for each gear. If you find out how far one pedal can go than you can divide that by how far the distance you're going is and estimate how many pedals it would take to get to that destination.

Anonymous said...

I think the most important part would be the little teeth on the wheels

Anonymous said...

I think the most important thing is the size of the gears, the size of the tires and the length of the distance the bike is going.

Anonymous said...

Figuring out the distance

Erika said...

I think the number of the teeth of in the front I and in the back was the most Important.