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My 5th Period Test Grading Session

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hey question number one your answer should have been the reason the answer should have been be is because you again 1 into the formula when you get Negative to you plug to end of the formula and you get zero the only sequence hear that starts with -2 + 0 is you notice on the top of the test here it says 66 out of 60 turns out there are 66 possible points on this test if you don't have a single point deduction at the end you will ride on the top of your test 66 out of 60 that is not the greatest going to go in the Gradebook this test is going to be worth 30 points in the Gradebook and will be graded the same way I grade homework one warning about your grade I am taking all of raise from this chapter and adds up to 12 points because there are 6 assignment in the chapter I'm taking all the homework rates from this chapter and I'm multiplying them by 3 so your total possible number of points on mark this chapter is not going to be 12:36 so the entire chapters me worth 66.36 points homework 30 points this test which in essence is homework also 66 points total is a lot less than the other chapters but that's what I feel comfortable with it this point I know a typical chapter book chapters worth about 90 points does chapters on TV worth 66 points I don't know if the next chapter is going to be different I'm going to play it by ear yeah there's a question about 8.1 my multiplying that times 3 yes I am explain all of the homework total homework by Street what's the number to the answer is be the reason the answer is B is because eliminated because it says... Which means it goes on forever and ever and ever and these two don't go on forever never be here so I can eliminate those I was down to these two possibilities I looked at this one plugged-in one to see what the first term was I got negative to so this is looking pretty good came over here and plug in 02 starts with G and I got zero then I plug one I got four so this is saying that the first he turns you out or 0 + 4 -2 is supposed to be the first time so it didn't make any sense to me here number three the answer is d d because you're supposed to add 1 + 1 + 1 + 1 + 1 + 1 34 x cuz it says terms 1 through 34 are all just the number one that's 34 number for the answer is why is it that I'm going up by 2 each time here going up by two going up by 2 so I knew that the common difference was to so after realizing that the common difference is 2 I went ahead and use the formula for finding out the formula type of formula for finding out the rule formula for finding out the formula put in a one and -1 * D clean it all up and I got to 1 - 8 fortunately there were two answers that had to in -8 so I had to do more work., bummer sometimes you don't have to actually do the entire problem because you already limited all the answers this case I had to be more I had to actually figure out the 13th turn one because that was the difference between answer and I figured out the 13 I got 18 so that's reason I chose d and this part should be easily graded because it's either you got three points or you did now finally what is something that is not multiple choice how to send me the first one going to be kind of tough maybe the great will see the technique I use is definitely different than what the textbook use text book sets up a system but in my notes I said to you guys that you can calculate the common difference by just doing slow because slope is like the, differ sequence rules are all linear so you know how slope is associated with there for slope to be associated with time differences so I went ahead and calculate slope 88 - 46 / 20 - 12 + I reduced it about 7:12 if you instead of like divided here in about 3.5 that's fine if you want 3.5 here I really don't like if you would three and a half but if you did and I wouldn't ask for it Malaysian have mixed numbers as for how do I get the four and what I did is I went ahead and asked myself what if I just stopped used 712 how high do that I'd get seven 7/2 sorry 7/2 is my rule that 7/12 and 7/2 * 12 and Diving 42 says here that the 12th terms must be 46 so I knew that I had to add for that to happen. So that's why I added for an adjustment I made because 7/2 by itself is not good enough all you wrote was 7/2 in because of how I decided to break this problem down points wise you will only get minus one because decided at calculating 7/2 getting getting before the newest one point I just don't like working with half points so that's why they're making one and a half for each of these just make it two points for that for the D for calculating D and then 1.4 correctly calculating the y intercept number of 6 and there were six you had to add a terms one through a hundred of this need to recognize that this is looks like a linear function which means it's the rule for an arithmetic lyrics for something at arithmetic then you should use the formula for the sum of an arithmetic series which is an X the average of the first and last terms but I'll give a hundred terms and adding hear a sound a hundred times the first and last terms average go to do that I had to figure out what the first last turns were I didn't show the work the one in and I got -4 + 6 which is two that I put 100 in for the last term I got -400 + 6 is -394 really hard to see that right there says -2 + -394 / 2 I try to do this Applejack I didn't have a lot of room that you want to get that scratch paper so I do a lot of mentally to goes into 150 * 2 - 394 is 9 - 392 and I do this multiplication my had well I know that * 50 is like multiplying by a hundred but then dividing by 2 so I thought what would happen if I multiply that by a hundred and up with 39200 I thought what's half of 39200 half of 39200 19600 -90600 turn the game partial credit to yourself if you have the setup but you weren't able to do the record kick cuz we're allowed to use a calculator and you just take off one point cuz you have everything right by General assignments written to cares if you want to point if you did not have this setup I don't see any way to get any partial credit you could let say you wrote that number on Etsy how do I set up using the how to get any points whatsoever you got to use the right for me so what if you use the right formula but you put in the wrong number there cuz you calculated incorrectly with undetermined let's say you thought the hundreds turn was -4 so your only mistake is figuring out what the hundred term was a one-point mistake if you followed through got the number you would get if this was -400 okay then you can go ahead and give yourself have a question 100 / 2 Men you did to mine 394 in box if you give yourself more credit I'm depending on what source you're using the formula three different ways of arranging this formula a lot of books water place on the internet would say and over to and then parentheses a OnePlus a.m. your particular book has it this way but three different ways of writing any of this number 7 hey this time it's part A B&C so each part is going to be worth two points first part is is this geometric or is this arithmetic says that amount the River Rise twice as much as previous day doubling time lapse definitely geometric double geometric I actually wrote down all the amounts that it rises because I saw and parts see if I know what happens over today's I went ahead and figure it out. It rises first 5 days till the first day tries its branches tells me so next day or twice as much is 8 + 16 + 32 + 60 what is a geometric sequence and I'm supposed to write a rule for it for Part B and geometric sequences course you write the rule by riding a 1 x r this case has to say one then are in -1 so that's your rule what's -10 on this guy I guess you can give yourself no one point if you get one of these two numbers right that's two points one point for this one point for that as for the total total of course is just going to be adding up all the amounts that the river Rises and I added so now you made a mistake on a check man the Trax 1.4 if you Road 64 because that's the amount of rice on v j -2 for understanding what's going on in the problem the total amount the river Rises Rises at 8:16 any questions on the 1st page prefer not to come back to it kept going to pay to number 8 compete and I have my work shown here I noticed that a * -6 each time that means geometric I didn't even have to figure out actually on this problem what a five because there's only two answers that have the correct rule cuz the correct rule for a geometric sequence is all A1 x r 10 - 1 only one of them said the geometric mean what's is arithmetic clearly is the geometric I don't really have to do this but I did anyways just to reassure myself if I * -6 should give me the next term which is the fifth term and indeed I do get 1296 so I am reassured that be have a question on showing work are multiple choice you're going to if you guessed your way to the correct answer in terms of grading the test again the grade on the test is not going to be your girl how to put on Eric's your great-aunt areas can be out of 30 points to me based on what you put in the effort of doing the test and then crappy so what's important right now if you guessed your way to the answer and you should still have the correct work shop so you have the opportunity right now to add and work on those problems that you correct cuz that's why I'm showing you this work here the crack work should be shown in pain in terms of the grading of the test for your own you know whether or not you get three points based on whether or not you Circle the correct answer in terms of the important gray that goes on Aries if you get something a crap by sheer luck there should be some work shown hey that indicates why that was the right answer and of course I really need you right now should be just like me when I grabbed your check always course Bradenton doesn't have to be read cuz I have a redhead I am using right now something that's purple number 9 oh okay these wants to read me top before points is because it's really true false the only way to Great true-false Fairlanes have each individual answer here in visual statement I'm be greater so you know it's for example on this problem here you Circle A and B then you should drive -2 because you got beer and you got the wrong because she was supposed to be Circle but you didn't you know you Circle be when it shouldn't have been so busy or two mistakes so you have to grade this individually by individual true-false so I circled a why because, ratio is 2/11 look here next numerator 2/11 reason common ratio geometric the parts when you Circle that sequence geometric you're not going to circle that the sequence of course he said it's your metric so therefore doesn't make any sense to say avocado difference because, different things that you don't understand the number 10 number 10 to work shown here because by the longest problem on this entire Simon I'm Terrence Tire test K is part A on this because I'm part A you have to add up the first eight terms of a sequence so let me get to party at the end do the easy stuff the sequence is geometric or absolutely your * -2 each time so that makes a geometric so that's why I circled beat the rule is 8 * -2 to the -1 that's true also the first turn and as I said earlier common ratio is -2 so that means this is my rule and as for 1/8 ping 2048 will I figured it out over here is not 2048 fact it's not even positive a Aid is a negative number I noticed I didn't even have that down originally because I just saw that it was negative number and that's the reason I crossed out as for S8 I really had to do all that arithmetic had to figure out what the first I already knew it the first four terms are but I hadn't cigarettes 5 6 7 8 9 2 all that arrested it's pretty easy cuz I recognize that this is easy to do cuz this is just double this so when I use 512 - 1024 + -512 - 828 - 256 -1 cuz this number is double list number and size when eventually added up this was -40 + this is -168 + -168 + -512 -680 so they was correct I have a question on census how many do we take off for questions on each of these true-false ones as you great each individual sentence as though it is a true-false question marks one point I wrote Four Points here cuz it's four sentences set alarm for example and you circled a great if you didn't Circle A that's minus point here if you didn't Circle big if you did Circle being that's mine at some point you just great each individually like there's one point true false questions next question half-year don't have to show how many points should we mark off we didn't Circle one of the choices but got the other two can. Would be 1.0 so that's why this is crazy because let's say you did number 10 and you Circle B and C but you didn't Circle and you only get one point. Oh Polly the longest problem to do ended up only being worth 1.0 if you never found that you know and you didn't really know for sure until she liked it dim every sentence is treated like a one-point true false it's going number 11 number 11 for something to be geometric there have to be some number you multiply by I'll keep luck see how it switches at the end here from a negative number to a positive number no way that's going to work with a geometric sequence cuz either X which means the sign will stay the same for the entire sequence this sequence doesn't do either of those it doesn't alter Nate show Tempe geometric which of course means a sequence is geometric so she is to be Circle freecycle.com difference of -0.2 all the difference here definitely is -0.2 but the difference here is clearly living room or negative or positive actually I mean the spacing for something to have a common difference is spacing between the numbers has to be the same and spacing between these numbers isn't even so there's no way that she is correct races are not constant yeah that's the reason I said the sequence. For a number 10 question do I take points off I guess a number 10 is a grading if you guess your way to a man you should have in your test corrections just like it was a homework you should have what gets you there and what gets you there is having this summer in terms of the pray that you going to put on the top of your chest you give yourself credit for guessing on multiple-choice that's what I do only on denominal got to work same number 12 multiple choice and it is answer d why is it d it's an infinite series and shine geometric Series where to find multiplying by two on the top and V on the bottom so that means to fix is my multiplier is Micron ratio so I use the formula a 1 / 1 - are so that's 2/1 - 2/5 how do you do that when minus 2/5 is 3/5 2 / 3/5 is like going to X what's 10/3 * that's why the interstate a number 13 same kind of problem except they make it obvious what Rachel is here I had to figure out what the common ratio was 2/5 here I don't need to do that because you can see if the geometric Siri is here so .7 is mine conjuration 1 - 0.7 is 0.3 I thought about how the world do I divide here and I decided when I multiply the top bottom by 10 I'll make it easier I X, how to make 10 cuz that's like * 1 which is an acceptable thing to do so I got negative 30 on the top and three on Natalia Tena musica sees her multiple choice request 1 second page hey then finally last page number 14 answer is a why is the answer this is a geometric series first 91 I seen this decimals 9100 the second 9191 is smaller than Valium previous because of place and the way you're supposed to look at this 91 as the one is in the hundreds place you think of this 91 is 9191 because the one here is a 10091 last 91 is 91 million that means I have a common ratio here A 1 / 100 * 1 / 100 if I won over a hundred so whenever a hundred is my common ratio of course 91 / 100 is my starting term so this is the setup course 1-1 of 100 is 9900 9100 / 9991 / 99 probably by 10 I'm up by here by 100 / 191 / 99 number 15 is d -15 15 is D because I'm looking for a recursive rule you find these answers starts with the first two terms so I know that this Progressive loss to do with using the previous tea charge if you luck clearly this term is found by adding the previous to this term is found by a choose an answer that start with 6 to 10 I got to stop at 6 and 10 this one long cuz I'm subtracting I'm really doing here is on that so that's why this correct number 16 gun multiple choice answers why is it be real reasons his first answer was weird cuz it said the charm is equal to next term square plus one by using a term from the future you cannot do that using a charm from the future makes absolutely no sense as bad as for why do I I tried them out I'm supposed to be 14 these two rules the second term this says take the previous term square it okay you just turn with 7 I sqrt 49 phone number farms in the previous term square again not 14 this one on the other hand was to do to determine number of end so I did a charter number on the previous term the second term to turn number times the previous Turn 2 * 72 * 7 is 14 the number $17 multiple choice should be seen cuz this is clearly a linear function linear functions you should know are associated with arithmetic sequences so I need to have the correct starting number so I plugged in to this sequence Rule and I found the correct starting numbers 3.2 he started -0.9 cell cross those out has started 3.2 this guy says use a term from the future and I do that I see the previous term course it makes sense dance receipt that you're adding 4.1 and 4.1 is the common difference so adding for I want to get the next turn doesn't make sense I didn't work it all out cuz I can meet you got eliminated by being done vijesti number I have a first term given to me and I'm told that I'm going to call you three times previous term three times the previous term multiplication by the same number each time is geometric with this case, ratio 3 so I have a first term of -6 not common ratio is 3 first turn -6 common ratio this is the rule because always a 1 x r c + -1 these other ones don't even have the crack a month and I could have done this without even thinking about the common ratio just just look at all these the number 19 what was the recursive rule first Turner when you're adding for each time so that's just the previous term Plus for this isn't multiple choice so you got to have to credit a common mistake will be to leave out a watch so at -1 for leaving so think I was the first part of the rule as being worth one point and the second part of the rules being worth two points give me the tallest if you did anything wrong with the second part of the rule -2 and finally number 27 tell you how many times your friend swings that can indicate to you and this is an infinite series tell you your friend swings a hundred times or thousand times no such information is given to you so you have to use some of his ride the infinite series which formula we have for internet series of geometric series I use that formula it says pick the first time / 1 - 2, ratio around the first term is the first swing for swing is 23 C says that each subsequent swinging 75% of the previous 77523 / 25 that's like doing 23 * $4,000 23 * 4 / 1/4 + 25 1/4 / 3.14 to 5 * 4 I need to hear you got the setup right but you shouldn't do the arithmetic without using calculator that's -1 the setup right here using the right formula two points finishing a final answer are there any questions on how to grade the last page questions on how to grade last page and they said it's beginning turns out so as up to 66.9 points 57 out of 60 points of deductions 20 points of deductions you dry 46 out of Fort Madison a question on how many points were 12 in 14013 well there are multiple choice to just three points so either you got it right or wrong three points the only things that word where these guys because they were too false and then also there was that one with a repartee apart feet apart seat a question go back to number 20 where is number 20 I have a question how many points 7c worth is 7 is that problem had a D&C part was there two points so 70 was two points just like Parts A and B to point Siege the reason this all adds up to 66 because number seven instead of being worth 3 points worth 6 points and then that set of shoes false each of those and saving were three points for with four points that I was an extra three points there so that's why I'd rather than 60 463 any other questions on the grading then I said earlier if you can relate and said I'm not going to be going over 10 .1 notes cuz I already did that and put it online if you go online and look at the video what are the degrading of the algebra 2 honors test you skip to minute 38 about 15 minutes the less than 50 minutes I spend chapter 10 Section 1 notes I would suggest putting out those notes and watching a 15 minute video which is an explanation instructions the first chapter can another question if only one part of the recursive rule was wrong for number 19 is it your point let's take a look at them tonight inside the number 19 think of this as being worth one point and think of this would be worth two points 40 - 1 ask question I have is to email to text you right now yeah you could do that take a picture of it it doesn't matter if your anytime today is fine looks like there's a few people that are absent 21% I like seeing if you know somebody's absent and tell them I'm going to be posting this what I just did over the last 40 minutes online on my website and grade their test using the video that I post I'm so anytime today is an appropriate time to send it to me any other questions it's okay if I did all my on a separate sheet of paper I'll have to accept that I did say I would have preferred if you try to do it all on here but if you couldn't how to use or wanted to use other piece and that's what you'll have to set an alarm I assume if you did all your work on a separate sheet of paper each out of all the fractions on a separate sheet of paper to he should still ride on the very first page for your skin can the score that you get is not going to be the score that I put on Aries he's going to hear he's not going to have anything to do with what score you write on the top of the page this is for your personal information as to how will you burn if you write on the top of the page the first page and you got a 40 out of 60 you can still get 30 out of 30 all you had to do was make the corrections that's all that matters have you tried it and you may depression any other question Tuesday after you get back there's a homework get back from spring break I guess most color going anywhere Tuesday after spring break is when the 10.1 Simoniz do you could today already watch that 15 minutes of video and the assignment but you not send it to me over spring break as I rode on my website I don't want people turning stuff in early and I don't want people turning in late it makes it so much easier for me if everyone just turned stuff in on time so enjoy your spring break

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