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How is IB graded?

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I just started IB this year and realized that I don't really understand how the grading system works. What proportion of the final grade is from internal assessments and what is from the external assessments? How does it all get converted to a score out of 7? Is a final grade for a SL class and one for a HL class count the same toward the diploma? And is the IB grade for a class separate from the percent grade we get for our school?


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Well for SL Chem for example, the IA is worth 24% and the IB Exam in May/November is worth 76%. SL and HL classes both count the same way toward the Diploma. At my school, let's say if you got a 5 in SL Chem, you would convert that to the highest percentage in that level, which is an 89%, and that's the mark that would show up on your transcript. If you got a 7; that's 100%.

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Internal assessments for SL tend to count more than those at HL. For example, in History the IA makes up 25% of the SL final grade, and 20% of the HL. English and French have around 30% of the marks coming from orals.

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[b]A guide to the International Baccalaureate (IB) Diploma Programme for universities and colleges[/b]

[b]How to interpret IB grades and transcripts[/b]
A student’s examination performance in individual subjects is scored on a scale of 1–7 points with a further 3 points available based on a matrix of performance in the [url="http://www.ibo.org/diploma/curriculum/core/knowledge/index.cfm"]theory of knowledge[/url] (TOK) and the [url="http://www.ibo.org/diploma/curriculum/core/essay/index.cfm"]extended essay[/url] components. Students who display satisfactory levels of performance across all subject areas and achieve a minimum of 24 points (out of a possible 45) are awarded the IB diploma. All others receive a certificate of results for the subjects examined. Subjects are marked according to the following scale:

[indent] [b]7[/b] Excellent
[b]6[/b] Very good
[b]5[/b] Good
[b]4[/b] Satisfactory
[b]3[/b] Mediocre
[b]2[/b] Poor
[b]1[/b] Very poor
[b]N[/b] No grade

[/indent] The TOK course and the extended essay are graded according to the following scale.

[indent] [b]A [/b]Excellent
[b]B [/b]Good
[b]C [/b]Satisfactory
[b]D [/b]Mediocre
[b]E[/b] Elementary
[b]N [/b]No grade

[/indent] Examination results are available in early July following the May examination session, and in early January following the November examination session. If requested by the student, results are made available to universities either in electronic format or as a transcript of grades, as appropriate. The results indicate the grade a candidate has been awarded for each subject, including the additional diploma requirements of theory of knowledge and the extended essay. The results also indicate the completion of creativity, action, service (CAS) and total number of points for the diploma, if a diploma has been awarded. [b]Diploma awarded[/b], [b]Bilingual diploma awarded[/b] or [b]Certificate(s) awarded[/b] will appear on the results.

Bilingual diplomas are awarded for:

[*] two languages A1, or
[*]a language A1 taken together with a language A2, or
[*]a group 3 or 4 subject taken in a language other than the candidate's language A1, or
[*]an extended essay in a group 3 or group 4 subject written in a language other than the candidate's language A1.
Source: [url="http://www.ibo.org/diploma/recognition/guide/slidef.cfm"]http://www.ibo.org/diploma/recognition/guide/slidef.cfm[/url]

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