reflection #2 (vectors)

This is my reflection on vectors

This unit was one of the shortest ones i have ever done, i understood most of it other then the Parallelogram Method, and when all the questions were put into super complicated problems where words were switched around. That was the only time i was somewhat lost. Other then that i got everything i was so excited and proud, it was taught well and pretty easy understood.

:)


...sorry was late...

Reflection on Vectors

Well Vectors is one of the shortest units ever :O. Haha, but I myself had trouble with some stuff like the Parallelogram Method, but when the pre-test came, and Mr. K showed us how it was done, I sorta got how to do it. So this unit wasn't really bad, although it was pretty confusing. So overall this unit wasn't really the best for me, but I got through it. Good luck on the test everyone, and don't forget to post your reflections!

Reflection

Our topic is about vectors, for me it is kind of easy an hard. Í am confuse about the question finding the direction. Like the last Pre-test.

The airspeed of an airplane is 300km/h. A wind blows from due east at 50km/h. In what direction does the plane need to head in order to travel north.

That question bug me and it is confusing. I just trying to solve it but i don't know how. When we take the test, i just guessed it and when we discuss it by group we were also confused how to do it. I'm also trying to figured it out but my brain hurts.

On the other hand, other problem is a bit easy compare to that question. Just being humble but vectors is more easier that statistic. ^_^..Statistic is really hard for me.

by the way...we have test..On Tuesday 05, 2009...shh don't tell anyone..^_^

reflection

I have to admit, this unit for me isn't that great. I'm not sure how to use some of the methods to solve the problems. I get how to finding the angle and the direction. The only thing that I think I'm going to have trouble with is the adding of the vectors and trying to find the place to put the vectors. But overall I think this unit is okay, not the best but it was the fastest unit so far.  

Reflection

Personally I found the unit on Vectors to be somewhat confusing. I don't feel 100% confident in using the different naming methods such as Direction Angle Direction. I am okay with using the Angle Direction of Direction. Also at first I was not sure where to place the protractor when measuring out an angle from a word problem. I am okay with this now though. Overall I found this unit to be a little more confusing than the stat unit.

REFLECTION!

Well the unit we were on was on vectors. I didn't really understand it at first. We had to review some of our trigonometry knowledge from years before. After the review I started to understand what we were being asked for. Since the program Trisolve2 was introduced to us, I started to understand more about the unit and help me figure out the sides and angle more. I found this unit to be a really short unit.

Statistics Reflection

This unit on statistics was pretty challenging for me and I’m pretty sure that it was pretty challenging for the rest of the class. I think that I have quite a grasp at what each command does, like the inversenorm, normalcdf, binocdf etc. But I think that for me to fully understand this unit, I would need about an extra week or two more to fully understand it. From our last class I think that I was finally able to talk to my other group members to clarify what I had problems with, and that was VERY helpful for me. In about two hours our math test will take place, and hopefully everyone is prepared! Good luck to everyone!

REFLECTION!

Statistics, well what can I say about statistics. It was a pretty long unit and it was hard to get a grasp of everything. But I read over the slides and got some help from some of my fellow classmates. I started to understand what was being asked and which functions I needed to use and which bits and pieces of information that was missing. I understand the majority of the functions and which each does now, the only thing I'm not to sure on is making a histogram. Tomorrow is the test, Good luck to everyone :D

Statistics Reflection

Well here we are, at the end of another unit.

And as one might expect, the trip here wasn't easy. For example, I'm still not clear on how to create a histogram. I know I have to put the data in List One, I know I use Zoom Stat in the 2nd Trace menu, and I know I have to select the bar-ed graph from the stat plot menu, and put L1 in the top section and L2 in the bottom section. Unfortunately for me, I haven't a clue what goes in L2. Furthermore, it doesn't appear to be in any of the slides. or any of the scribe posts. I checked more than once. Damnit.

Also, I missed the class on Confidence Intervals and Margins of Error. Thankfully, the process by which they are found is simple enough. Confidence Interval is merely 1.96 σ above and below the mean. Easily expressed as (µ-1.96σ, µ+1.96σ). Likewise, Margin of Error is calculate by (1.96σ)÷(# of trials). For instance, if you had 100 trials with a standard deviation of 10 and a mean of 50, you'd have a confidence interval of (50-1.96(10), 50+1.96(10)), or (30.4, 69.6). The margin of error would be 19.6÷100, or 0.196. Also known as 19.6%

the problem I had with these concepts is the meaning of "Confidence" in this context. My assumption was that if the data was within the confidence interval, I could be confident in the probability of that occurrence. Not so. In fact, all it says is that, were I to repeat the experiment, 19 times out of 20 I'd be likely to find 95% of the data lying between the aforementioned interval. To reuse my previous example, 19 times out of twenty, 95% of the data of an experiment which (when previously tested) resulted in the data µ=50, #trials=100, and σ=10 would lie between 30.4 and 69.6.

Reflection on Statistics

There had been a lot of complications about this unit. Today, I finally understood what each command does. We did a lot of calculations and analyzed datas. It was pretty confusing at first. Especially for those who does not pay attention. I find binomial distribution easier than normal distribution. The invNorm command still confuses me sometimes. I'm not sure when to shade right or left. Besides that, I think I understand most of it.

Tomorrow will be our Unit Test. Good luck to everyone.

Statistics Reflection

I thought that this unit on statistics to be a little challenging but not that hard. I understood what I was doing during the class and I got how to solve the problems. I think that this unit is a little better for me than the probability unit. 

In this unit I had a little trouble on how to do the histogram and that was basically it. I knew how to do everything else. There is a lot of things that you have to remember on the calculator but i guess you just have to understand the problem to know which calculator function to use. I have been doing all my homework, which was helping me understand and how to do the problems more. 

Hopefully I do well on the test tomorrow! (: 

Good luck everyone! 

Reflection

I found kind of easy in studying about the statistics. As the topic started it is easy but when it is in the part of were binomial and normal use, it is kind of confusing but very interesting because i learned lots of term in mathematics. It is hard to know but as the subject goes on, it is easy to adapt on it. i find hard in the part were using formula like:

1-binomial(n,p,q) and other terms.

In addition to, I kind of confuse in at least, at most, less than and or more than.

Note: tomorrow is our test. (Thursday, 23th April).

Statistics Reflection

The Statistics Unit, was a hard but yet understandable unit. I was scared when I missed one class, which was yesterday, that I might of missed a lot of important things. But the day after that when I actually got to class in time, I understood what was given to us as a class. And I caught on quickly. The test might be a bit challenging for me as I do understand the unit, but I also get confused at times. I guess studying and looking into the problems deeper, and reviewing the slides that Mr. K puts up every night may help me. The unit was very hard for me to understand during the process of learning, but as we kept on solving problems, it came to me just like that. Hopefully I will do good on the test on Thursday!! Good luck to everyone!

Reflection

I found the statistics unit to be easier than the probability unit.
I didn't have any problems with the calculator commands. Ideas such as
Z-scores and finding the area between certain ones and what that represents I
found to be easy as well. The last part of the unit concerning the binomcdf and
binompdf functions I found to be a bit confusing at first. Also the confidence
interval I found confusing in the beginning as well. I am not as comfortable in
using those functions but hopefully I will do well on the test. 

Reflection

Reflection

So this is my reflection on the unit of statistics, unfortunately i was away for a week during this unit but when i got back and learned things the same time as the rest of the class i understood.

The things i understood where things like:

• the binomial and normal distribution,
• how you calculate.
• i also understand the mean median and mode good.

the things i didn't understand was:

• the z-scores, how to get them and what they are and do.
• how to get a histogram on your calculator and what it represents
• inversnorm command
• the standard deviation.
• the shadenorm and normalcdf normalpdf are understandable but i am not completely confident in it and that is because i don't know which to use for what problem. usually my problems start because i don't know which formula to use for what problem...

over all this unit was good a little hard but hopefully i pass the test and carry on with my studies.

thanks.

Niwatori-san's Reflection (Statistics unit)

Ah well Statistics it wasn't entirely hard but not entirely easy... Just following the Concept of changing from a probability to an area was confusing if a person was to look and normal distribution. Anywho I'm fine with the details of the unit by now being some more practice should spruce up any minor areas where I don`t feel confident about where sources of error may occur at a high percentage if I don't be careful >_<

People for words of encouragement...

'' Pay yourself some worth rather something fancy ''

Statistics Reflection

The statistics unit is a rather very long unit. I found most of the things easy to under stand,but after we finished learning about the normal curve and how it is distributed, we learned about binomial distribution. Binomial distribution is what i found the hardest to understand and grasp. I do not think it was the concept that was hard, but how the problems are worded. The problems are worded with lots of "math words" that often confuse me. It has always been difficult for me to get the important info out of a math word problem, but other than that it pretty much all makes sense to me.
Ooh and another thing a little hard to me is remembering what calculation to use to find each missing piece of info. For example:_finding the mean, s.d., the z-scores and now the confidence interval are tough to remember....... This divided by this times that, that minus this over those,yadayada.