Ib math aa hl paper 1 grade boundaries

Since we have shown that the proposition is true for n =1 then the proposition is true for all n∈ + R1 [7 marks] Total We would like to show you a description here but the site won’t allow us. Exam Style questions – Paper 1. Overall its illogical that all the year has the same boundaries as grade boundaries are set by how well students did on the test. I’m currently getting 55% on paper 1 and 2 in my past papers. Feb 13, 2023 · For the May 2023 examination session, students undertaking the Diploma Programme (DP), Career-related Programme (CP), and Middle Years Programme (MYP) will complete all assessment components for each subject. Practice Online 2023-May-Mathematics Applicationsand Interpretation Paper_1__TZ1-SL Detailed Video Explanation Prepared By IB MAI Teachers. 2 hours; 30% weighting of final grade; Paper 3: Technology allowed. 5 . If you get stuck on paper 3, move onto the second question - the first 1-2 parts are usually relatively easy. Example: for differentiating f ( x ) = 2sin(5 x − 3) , the markscheme gives: f ′ ( x ) = ( 2cos(5 x 3) 5 − ) Method of Determining Overall Achievement Grade. Group 5. if n 1 LHS 1 ; 0 3 RHS 4 4 3 1 2 M1 hence true for n 1 assume true for nk M1 Note: Assumption of truth must be present. 2 hours 15 minutes . Proofs) and range from 30 to 90 minutes in length; perfect for a single study session. Most AA boundaries for 20-22 in the low-to-high %60s. = Available in language indicated, = Available in English only. Using the markscheme. In addition, the official mark schemes accompanying the papers are often difficult to understand, or don’t show all the working steps on how to reach the final answer (the mark schemes are designed for the markers of exams, not the students). There have been significant point increases in the following major subjects: SL/HL English LAL, SL/HL English Lit, SL/HL Math AA, HL Math AI, SL Physics, ESS, SL/HL SEHS, SL Visual Arts, SL BM, SL Economics, SL Geography, SL/HL Global Politics. theres ALWAYS seperate grade boundaries for different timezones brother, the paper it self is different for Tz-1 and Tz-2, us in Tz-2 got affected only. Boundaries This document is now read-only for archival purposes. Our expert IB teachers & examiners have written revision notes, practice questions & tips for your IB exams, to help you get the best grades possible. M. Where there are two or more A marks on the same line, they may be awarded independently; so if the first value is incorrect, but the next two are correct, award A0A1A1. 3 Sequences & Series. 2. But I wonder the grade boundary for only paper 1. IA Math AA HL 5. password-protected IB website designed to support IB teachers. 5% of all global IB students. Optimising given parameters with the aim of creating a model of an ideal triple axel jump in figure skating. AA HL Resources; AA SL Resources; AI HL Resources; IB Math Revision. 000. Thanks everyone for your contribution and fun comments! IB November 2019 (N19) Grade Boundaries Compiled by volunteers of r/IBO 4,5,6,7 Group 1 Language A,HL,English A literature,57-68,69-80 May 3, 2021 · 10 A1. com Grade boundaries for International Baccalaureate Diploma exams taken in May 2023. 1 hr HL Paper 2 . Compared to M23 and N22, N23 boundaries have somewhat increased. Are there any grade boundaries adjustments? Yes! Grade boundaries Grade From To 1 0 9 2 10 20 3 21 30 4 31 38 5 39 48 6 49 56 7 57 100 Subject: MATH APPS Level: HL Subject option: MATHEMATICS APPLICATIONS AND INTERP Timezone: 0 FINAL Grade From To 1 0 7 2 8 15 3 16 23 4 24 38 5 39 51 6 52 63 7 64 100 It is generally not possible to award M0 followed by A1, as A mark(s) depend on the preceding M mark(s), if any. -. Additional publications such as specimen papers and markschemes, teacher support materials, subject reports and grade descriptors can also be found on the programme resource centre. AA HL Resources; AA SL Resources; AI HL Resources; Mathematics AA HL. Component Current number of marks Modified number of . Please visit this page to find out more about the enrolment process. for ai hl, i think the paper 1 grade boundaries will be low, while the paper 2 n 3 grade boundaries might be high. org. Good luck! A comprehensive list of IB History grade boundaries for Paper 1, Paper 2, Paper 3 and the IA. We apologise that this site is currently unavailable due to essential maintenance. However, 10 should be written as. I. Award marks using the annotations as noted in the markscheme eg M1, A2. 1 hour 15 mins . Paper 1. While compiling this document I have paper 3 specimen paper . Once a correct answer to a question or part-question is seen, ignore further Exam Style questions – Paper 4. From rewriting EE from scratch to doing 10–15 sets of papers in 1 and a half months, IBDP has been hell. 45 mins . United Kingdom Website: www. paper 1 specimen paper . paper 1 markscheme . Next Question. CF23 8GL. Research has shown that different examiners will have slightly different opinions on what mark a piece of work deserves. May 2, 2023 · The practice of awarding marks, despite candidate errors in previous parts, for their correct methods/answers using incorrect results. 1 hr . 1 hours 15 minutes . marks f. Also, make sure to visit Clastify for tons of free IA examples. A paper is just a kind of test. Where current measures in students’ local I don't think it is appropriate to compare this with Math HL pre-2019. Additionally the leaked paper had watermarks and solutions. These short quizzes target specific concepts in the AA HL course (e. SL. Exam Zone B: UTC +3 to UTC +0. It was even sold on telegram wtf you’re talking about. An. Jul 25, 2022 · In SL, there are two papers in the exam. 1 Number & Algebra Toolkit. But I didn't give up. The practice of awarding marks, despite candidate errors in previous parts, for their correct methods/answers using incorrect results. Mathematics subject brief International Baccalaureate (IB) Maths Past Exam Papers for Analysis and Approaches and Applications and Interpretation, higher and standard level. 3. Two compulsory extended-response problem-solving questions; 1 hour; 20% Apr 24, 2024 · • Group 5: Mathematics • Group 6: The arts (or a second subject from groups 1 to 5 in lieu of a group 6 subject) In addition, the following must be met: 1. paper 3 markscheme . Please do report about any other papers such as Business Management, Global Politics and HL Paper 1 25 25 20% 25% Paper 2 40 40 30% 35% Paper 3 60 30 30% 20% IA 45 45 20% 20% Total weighting 100% 100% Music (first assessment 2022) Adaptations — further details The IB recognises the potential disruptions to practical work in DP music in the adapted assessments outlined below. Grade boundaries are shown here at standard level (SL) and higher level (HL) for a selection of the most popular subjects Subject: BIOLOGY Level: HL Subject option: BIOLOGY Timezone: 1 PAPER 1 (MCQ) Grade From To 1 0 10 2 11 13 3 14 16 4 17 21 5 22 26 6 27 31 7 32 39 PAPER THREE Grade From To 1 0 4 2 5 9 3 10 14 4 15 20 5 21 26 6 27 32 7 33 45 PAPER TWO Grade From To 1 0 8 2 9 16 3 17 23 4 24 34 5 35 44 6 45 55 7 56 72 PRACTICAL WORK May 14, 2024 · I have updated the site with November 2023 grade boundaries. Additional resources. Were there 11 questions or 12 questions in total? I can only remember 11 questions from paper 2. AA Formula Sheet. Mar 22, 2022 · The IB will work with schools to support student needs, to prepare DP, CP and MYP students for the full suite of assessments in 2023. Paper titles in blue denote a link to the relevant listening comprehension audio track (MP3) HL. AA HL Revision Questions. The gradient one also yes, root 17 and x coordinate is 8 because you reject -2. Math aa hl grade boundaries. I have a question would the may 2021 grade boundary ressemble that of November 2020 or will it be lower than that of November 2020 Calculate your IB Mathematics: Analysis And Approaches grade! Paper 1: No Technology. For paper 1: check your calculations. They have advised that the boundaries from 2019 will be a much better predictor for 2023. Mathematics: analysis and approaches standard level . Where M and A marks are noted on the same line, e. It can also be purchased from the IB store at store. Student friendly model answers written by experienced teachers & examiners. See what past students did and make your Math AA IA perfect by learning from examiner commented examples! Question 1b. • Do not accept final answers written using calculator notation. Zero math, 2-4 free points. Jun 20, 2024 · The latest Diploma Programme (DP) and Career-Related Programme (CP) statistical bulletin (PDF, 1. Paper 3 consists of 2 long response problem PAPER 1 (MCQ) Grade From€ €To€€ 1 0 10 2 11 13 3 14 16 4 17 19 5 20 23 6 24 26 7 27 40 PAPER THREE Grade From€ €To€€ 1 0 6 2 7 12 3 13 19 4 20 23 5 24 26 6 27 30 7 31 45 PAPER TWO Grade From€ €To€€ 1 0 9 2 10 19 3 20 28 4 29 39 5 40 49 6 50 60 7 61 95 PRACTICAL WORK Grade From€ €To€€ 1 0 3 2 4 6 3 7 10 4 11 13 5 A common difficulty IB students encounter when revising with IB Math AA HL Past Papers is how to actually answer the exam questions. Feb 22, 2019 · IB Psychology – Grade Boundaries New Curriculum (Feb 2019) Travis Dixon February 22, 2019 Assessment (IB), Curriculum, IB Psychology. Course-specific and 100% exam-aligned. In N21, about 40% of maths AA HL students scored a 7. Past paper and exam-style questions, organised by topic. ALWAYS do the first two (n=1, n=k) steps of proof by integration. g. paper 3 specimen paper . Okay here are the M21 final grade boundaries, if thats any help at all. Exam Style questions – Paper 5. Paper 2. omg dude. Past examination This document provides the component and overall grade boundaries for IB Diploma Programme courses with more than 100 candidates in NOVEMBER 2019. May 20, 2014 · Well, first of all, it's quite hard to determine if people do 'well' relative to other papers in the first place. They do this across a range of EDIT 3: Based on information from comments, the Math AA HL papers were leaked with sightings reported by those who had taken the exams seeing the papers online with the exact questions and answers. The descriptors apply to groups of subjects but substantial similarity exists across sets of group grade descriptors. This is fine. How did you do? Did this page help you? Questions and model answers on Practice Paper 1 for the DP IB Maths: AA HL syllabus, written by the Maths experts at Save My Exams. (for entertainment purposes only) AI HL 5:51-62; 6:63-72; 7:73+. May 2016 grade boundaries for DP coordinators. 12. The IB also intends that in 2023 the distribution of grades awarded for our qualifications to return close to those of May 2019. View Answer. Popular Quizzes are one of the three types of IB Math AA HL Practice Exams that Revision Village offers. 5 2, as it simplifies to an integer. attempting to solve their equations: u. 8 Advanced Differentiation. different grade boundaries. May 18, 2016 · Only 14% of IB students take IB HL, an incredibly low take up. View the examination papers and markschemes available for each Diploma HL = Higher level, SL = Standard level. The three overall grades are then combined to give a mark out of 100. They take an initial random sample of examination papers and using IB grade descriptors they decide if the answers in a paper are deserved of a 7, 6, 5 etc. I had hopes of getting a 7, given the grade boundaries of 72–78 ISH. Where M and A marks are noted on the same line, for example, M1A1, this Feb 2, 2024 · For examples of how to structure a good history IA check out these blog posts ( 1- topic ideas, 2- format and structure, 3 - word count and page limit). so 23 1 1 11 1 1 2 12 3 4 4 22 2 2 2 k k k k §· §· §· §· ¨¸ ¨¸ ¨¸ ¨¸ ©¹ ©¹ ©¹ ©¹! if nk 1 11 1 1 123 1 12 3 4 ( 1) 22 2 2 2 kk kk May 2, 2021 · answers, (which candidates often do not write in examinations), will generally appear in brackets. These exam zones will be based on the time zones of the country of your school: Exam Zone A: UTC +12 to UTC +3. Assess your score. AA SL. The curve on HL Math is absolutely massive because of this . Mathematics: analysis and approaches higher level . Therefore, before discretely transitioning to pre-2019 boundaries, I think this year will be a transition of some sorts. IB said they want to turn to 2019-era but with the recognition of COVIDs effect on M23. General. 1. Where the markscheme specifies (M2), N3, etc. exception to this is simplifying fractions, where lowest form is not required (although the numerator. A common difficulty IB students encounter when revising with IB Math AA SL Past Papers is how to actually answer the exam questions. To be on the safe side I would be aiming for 80% or more on each component. Geography modified marks and modified weighting. International Baccalaureate Organization 2019. The rest at standard level (SL) – 150 recommended teaching hours for each subject. Subject groups. 5 MB) contains summary statistics for the May 2023 assessment session. Weight: 40% M21, N21, M22, N22 grade boundaries were artificially low We would like to show you a description here but the site won’t allow us. In assessment periods when a component is assessed a number of times, a “best fit” approach will be used to decide upon an overall grade. 5 Optimisation. Section A: compulsory short-response questions based on the syllabus. and the denominator must be integers); for example, 10 may be left in this form or written as. Number & Algebra. (a) . Out of a year group of 60 you would expect on average only 2 students to be Answers being wrong doesn’t matter. 11 MacLaurin Series. Official grade boundaries are out already. Analysis and Approaches Higher Level. What grade would this roughly translate to? Also any advice is appreciated on how to do better. In this assessment, students are required to conduct independent research and present their findings in a structured manner. in the IB Diploma Programme. 3-4 higher level (HL) subjects – 240 recommended teaching hours for each subject. . Marks: 3. or M21 /N21. Following marks are not dependent on the first two M1 marks. 6 Kinematics. The final decision on the grade boundaries is made at marking conferences between experienced chief examiners. paper 2 specimen paper Jun 6, 2023 · Every exam session, the IB carries out a large number of grade award processes to determine the final grade boundaries for each subject. Basics. Mathematics: analysis and approaches paper 1 TZ1. Topic Questions. 5. It is not possible to award M0 followed by A1, as A mark(s) depend on the preceding M mark(s), if any. Here, paper 1 and paper 2 are both 2 hours long, with paper 1 being a calculator-prohibited exam. paper 2 specimen paper Grade Boundaries Senior examiners and IB staff set the grade boundaries using a combination of judgment, statistical evidence, grade descriptors and the teachers feedback. I have suffered so much trauma for the last two years. Section B: compulsory extended-response questions based on the syllabus. See full list on easysevens. ibo. Method and Answer/Accuracy marks. You will not finish. 12 Further Limits (inc l'Hôpital's Rule) Revision notes for the DP IB Maths: AA HL syllabus, written by the Maths experts at Save My Exams. Exam Style questions – Paper 4. The IB intends to set the distribution of awarded grades to the pre-pandemic levels of May 2019. Unfortunately, this case has been proven to be true. 2 Exponentials & Logs. IB Math Resources. Use of this product implies acceptance of these terms and conditions and copyright. Nov 3, 2021 · 2 Method and Answer/Accuracy marks. If you have had half of ur brain you would solve the questions by urself and the paper was leaked 1 week ago. Oct 9, 2021 · This is also a good chance for you to spend time on any questions you may have skipped earlier. M1A1, this usually means M1 for an attempt to use an appropriate method (e. For paper 2: work backwards to see if the answer makes sense, or use an alternative method to arrive at the answer if you can think of one. International Baccalaureate IB Global Centre, Cardiff Peterson House, Malthouse Avenue Cardiff Gate, Cardiff, Wales. Thus prove, given , , that the difference between an odd natural number greater than 1 and its cube is always even. SL and HL Paper 2 . substitution into a formula) and A1 for using the correct values. HL Paper 1 . However, it is still possible that the disruption to learning may impact student Revision Village is ranked the #1 IB Math Resources by IB Students & Teachers. Progress tracking across 55+ topics & 3510+ questions, sorted by difficulty. Grade Boundaries: 2019-2020 1 2 3 4 5 6 7 ENGLISH A1 HL 0 - 15 18 - 32 33 - 43 44 - 55 56 - 67 68 - 78 79 - 100 FRENCH B HL 0 - 15 16 - 30 31 - 49 50 - 61 62 I never saw or found grade boundaries by the official Ib. you’d be giving 75% of your study time just to math. Past examination The IB Diploma Programme Final Statistical Bulletin, May 2019 Examination Session. International Baccalaureate Baccalaureat International Bachillerato Internacional . I take math AAHL, and the paper was much better than what I did in mocks. 9 Advanced Integration. Paper 1 (non-calculator) and Paper 2 (calculator) both consist of short and long response questions. Comparisons with previous years' statistics are also made in the document. It's ln (x^2-16), so when that is equal to zero, we know x^2-16 is 1. There are three exam papers, combined to be worth 80%. View PDF List. 50 votes, 180 comments. Exam Style questions – Paper 2. High scoring IB Math AA Internal Assessment examples. Do not automatically award full marks for a correct answer; all working must be checked, and marks awarded according to the markscheme. Yes 16pi - 8. The official r/IBO discussion thread for Mathematics analysis and approaches SL paper 1. Subject: BIOLOGY Level: HL Subject option: BIOLOGY Timezone: 1 PAPER 1 (MCQ) Grade From To 1 0 10 2 11 12 3 13 15 4 16 21 5 22 26 6 27 32 7 33 40 PAPER THREE Grade From To 1 0 5 2 6 10 3 11 16 4 17 22 5 23 27 6 28 33 7 34 45 PAPER TWO Grade From To 1 0 8 2 9 16 3 17 24 4 25 35 5 36 45 6 46 56 7 57 72 PRACTICAL WORK IB Math Resources. The grade boundaries below are applied to give a 1-7 grade. SL Paper 2 . A paper refers to a test, and in this case we only have two tests, while HL would have three. These bundles are not just limited to messages but offer past year papers and How-to Guides for Extended Essays, Internal Assessments, and more; examples included! The IB advises schools not to use component boundaries for this session as direct indicators of academic standards for future exam preparation because they have been set in response to the particular needs of the May 2022 cohort. What is grade boundary for Math AA HL Paper 1 2021? I know the summary final grade boundary for Math AA HL 2021 is 63~100% is 7. That will put you on the safe side. Senior examiners use these grade descriptors when determining grade boundaries for examination papers and coursework components. , do not split the marks. Note: Award A1 for any two correct equations. 34% Grade Increase Revision Village students scored 34% greater than the IB Global Average in their exams (2021). Subject: HISTORY Level: HL Subject option: HISTORY ASIA AND OCEANIA Timezone: 1 FINAL Grade From To 1 0 8 2 9 21 3 22 33 4 34 46 5 47 59 6 60 72 7 73 100 Subject: HISTORY Level: HL Subject option: HISTORY ASIA AND OCEANIA Timezone: 2 FINAL Grade From To 1 0 8 2 9 21 3 22 33 Subject: HISTORY Level: HL Subject option: HISTORY AFRICA AND MIDDLE EAST Timezone: 1 FINAL Grade From To 1 0 9 2 10 22 3 23 34 4 35 47 5 48 59 6 60 71 7 72 100 Subject: HISTORY Level: HL Subject option: HISTORY AFRICA AND MIDDLE EAST Timezone: 2 FINAL Grade From To 1 0 10 password-protected IB website designed to support IB teachers. Nov 2, 2021 · (1) d() π cos d2 k kk fx k fx aa ax x + == + M1 1 sin ππ 22 =++aaxk+ k (using part (a)) A1 1 (1)π sin 2 =+aaxk+ k + A1 given that the proposition is true for nk= then we have shown that the proposition is true for nk=+1. For the probability distribution of arccos on the interval [0,1], rather than using by parts and a substitution to find the median you can just graph the Math Internal Assessment, also known as Math IA, is a crucial component of the International Baccalaureate Mathematics program. Grade descriptors consist of characteristics of performance at each grade. This product includes the Diploma Programme examination papers and markschemes for the May 2019 session examination session, and help on installation and use of the product. and as tests are different, some easier, some harder, it definitely means that boundaries are different. 4. it’s not as “difficult” as it is “time-consuming” because it takes time to master a topic and once you’ve mastered it, it’s not that hard. The IB will award grades using all components, coursework and examinations. The IB Mathematics Analysis and Approaches HL course consists of four assessment items that contribute to a students overall score for the course. Grade award is a rigorous process that involves the analysis of a range of different evidence to ensure the fairest and most comparable outcomes for students. Learn more about mathematics in a DP workshop for teachers. Model Answers. Read about group 6: the arts . Even more remarkably half of this group will only get a level 2-4. AA HL 5:52-64; 6:65-77; 7:78+. +5. Doable, but challenging. So yall are fine, the IB it self said that they will treat Timezone 1 which is I think the Americas to be unaffected, so yall are fine, you'll get the grade boundaries that you deserve based on Aug 1, 2022 · In HL, there are three papers written during the exams. Hope it is! HL TZ1 - 7 is at 63%, 6 is at 49%, 5 at 36%, 4 at 24%, and 3 at 13% TZ2 - 7 is at 69%, 6 at 53%, 5 at 38%, 4 at 24%, and 3 at 12% May 2016 Grade Boundaries. Apr 5, 2024 · 30% weighting of final grade; Paper 2: Technology allowed. 9 and 1,9 or 1000 and 1,000 and 1. However, M marks and intermediate A marks can be scored, when presented using calculator notation, provided the evidence clearly Mar 15, 2023 · The non-exam route that was offered in 2020, 2021, and 2022 will not be offered for 2023 IB Exams. The AA HL Popular Quizzes are similar to the Questionbank section (focussing on Where M and A marks are noted on the same line, eg M1A1, this usually means M1 for an attempt to use an appropriate method (eg substitution into a formula) and A1 for using the correct values. 14 , d 3. Exam Style questions – Paper 6. If you want to look at it in terms of grade boundaries for a 7, a 'typical' boundary for a 7 in Paper 1/2 is around 90-100/120 (45-50/60) whereas in some years and for some options it's possible to get a 7 with scores closer to and even below 40/60 - albeit I think in recent years This document provides the component and overall grade boundaries for IB Diploma Programme courses with more than 100 candidates in NOVEMBER 2020. B. IMO, a 5/6 is easy, but 7’s a little challenging. , do not split the marks, unless there is a note. 5. 1 HL AA. Mathematics: analysis and approaches paper 1. Assessment component Current examination time Amended examination time . Marks should be awarded for either the form preceding the bracket or the form in brackets (if it is seen). I've created these grade boundaries for IB Psychology to use with my own classes and thought I'd share them in case they're helpful for you. The Math IA accounts for 20% of the overall grade for the IB Mathematics course. AI HL Revision Questions. DP IB Maths: AA HL. These two papers cover a vast majority of the content taught through the IB coursework, with each paper having a slightly different format and styling to their It is generally not possible to award M0 followed by A1, as A mark(s) depend on the preceding M mark(s), if any. NOOOOOOOO we're supposed to give exact answers. makes this explicit in the markscheme. NEW HIRING STUDENTS - A Level Maths students (predicted A*) of Further Maths (predicted A or A*) to type solutions for resources and very neatly handwrite model solutions. Paper 1 and Paper 2 are both non-calculator and calculator papers respectively, and Paper 3 (HL only) focuses on more complex, investigational problems. Current Sep 12, 2023 · Mathematics: applications and interpretation HL; Mathematics: analysis and approaches SL; Mathematics: analysis and approaches HL; How to enrol. 7 Basic Limits & Continuity. Looking at the top end, to get a level 6 or 7 at HL you probably need to have a maths ability in the top 3. Number and Algebra. (i) AB. For an absolute hold on IB Math, check out our premium notes designed and curated specially for you, be it IB Mathematics SL or IB Mathematics HL. May 4, 2021 · 6. This document provides the component and overall grade boundaries for IB Diploma Programme courses with more than 100 candidates in May 2016. This evidence includes Statistically Recommended How is the IB Math AA exam scored? IB Math AA exams are scored based on your performance on two papers for SL and three for HL. Below are the overall subject grade boundaries for selected International Baccalaureate (IB) Diploma courses that were assessed in May 2023. While both papers are 90 minute long tests, paper one is not allowed to be taken with the use of a calculator, unlike paper two. Get sleep. Where the markscheme specifies A3, M2 etc. M = Markscheme/marking notes. Both tests are meant to test students on different concepts as well as how • As this is an international examination, accept all alternativ e forms of notation for example 1. What will the grade boundaries look like For m23 examinations. Grade Boundaries: 2019-2020 1 2 3 4 5 6 7 ENGLISH A1 HL 0 - 15 18 - 32 33 - 43 44 - 55 56 - 67 68 - 78 79 - 100 FRENCH B HL 0 - 15 16 - 30 31 - 49 50 - 61 62 The official r/IBO discussion thread for Mathematics: analysis and approaches HL paper 2. AA SL Revision Questions. Further recently, the IB announced that there will be three time zones to conduct M23 examinations. b) Thus prove, given , , that the difference between an odd natural number greater than 1 and its cube is always even. All of these are available on IBIS as are those for courses with fewer than 100 candidates. Past paper and exam-style questions organised by topic, with student-friendly answers written by teachers and examiners. 10 Differential Equations. ii fw pw rj nc ko wf tc ea vo