General Maths raw marks/aligning (2 Viewers)

[janbroodryk]

Hi there, I've looked at the raw marks database but there is not much on how much it aligns I.E the raw marks you need for a band 6

Does anyone know the marks needed for a HSC mark of 93 or 94 in General? Does it align well?

 

[janbroodryk]

Bump

 

[Green Yoda]

would say ~88-90% raw for 93-94 hsc mark

 

[davidgoes4wce]

General Maths 2015 Marks Descriptive Statistics from the UAC website:

HSC Mark:
Quartile 1 (25th percentile)= 29.5
Median (50th percentile)= 35.0
Quartile 3 (75th Percentile) = 40.0
90th Percentile= 43.5
99th Percentile=47.5
Maximum Score= 50.0
Mean = 34.5

Scaled Mark:
Quartile 1 (25th percentile)= 13.2
Median (50th percentile)= 21.2
Quartile 3 (75th Percentile) = 29.8
90th Percentile= 36.0
99th Percentile=42.1
Maximum Score= 45.9
Mean = 21.7

Total Students sat exam: 31,511

 

[davidgoes4wce]

Now those marks (I assume ) have been scored out of 50 (in terms of actual marks General Marks is an exam out of 100 marks)

 

[davidgoes4wce]

87% HSC mark is not that high to be ranked in the Top 10% of the state for a subject. My advice to anyone sitting General Maths exam, is 'every mark counts'. it is alot harder to score higher in General Maths than it is in Maths Extension I/Maths Extension II from the statistics I have read. (which kind of defies logic as you would think a harder subject would be harder to score higher marks)

Generally speaking, if you can nail 9 out of 10 questions from an Oxford/Cambridge/New Century textbook (Review Questions/End of Chapter questions) or exam papers then you are well on the way to being ranked in the Top 10% in the state in this subject.

 

[Green Yoda]

David, I think you are confused between scaling and aligning. They are 2 different things and UAC has nothing to do with the aligning of raw marks.

 

[davidgoes4wce]

David, I think you are confused between scaling and aligning. They are 2 different things and UAC has nothing to do with the aligning of raw marks.

HSC Mark- The HSC mark is a 50:50 combination of a student’s examination mark and school-based assessment mark for each course. 



Assessment Mark-School-based assessment tasks

Examination Mark- examination mark for each course shows the student's performance in the HSC examination for that course

 

[Green Yoda]

The start you have is of scaling, not aligning. BOSTES aligns the raw hsc mark to the exam hsc mark, but the UAC SCALES the exam hsc mark and the moderated hsc mark and turns it into and ATAR.

 

[davidgoes4wce]

HSC Mark- The HSC mark is a 50:50 combination of a student’s examination mark and school-based assessment mark for each course. 



Assessment Mark-School-based assessment tasks

Examination Mark- examination mark for each course shows the student's performance in the HSC examination for that course

OK I'm reading these values wrong. But its pretty interesting,


These tables were obtained from an online source (tutoring company):

Maths Advanced
Year HSC raw exam score ATAR equivalent
2014 97% 99.95
2010 90% 99.2
2013 77% 96.2
2009 58% 81.2


Maths Extension 1
Year HSC raw exam score ATAR equivalent
2011 81% 99.9
2011 63% 98.2
2010 52% 95.5

Maths Extension 2
Year HSC raw exam score ATAR equivalent
2014 79% 99.95
2011 54% 99.3
2009 45% 98.1

So am I reading this correctly, from those tables (presuming that you performed at a similar level in your school assessments), an 80% mark in Maths Extension I would equate to an ATAR equivalent above 99+?

 

[davidgoes4wce]

I will admit that I am doing Maths Extension 2 topics, and can average around 65% , so does that put me in the 99+ ATAR equivalent?

 

[RyanT7]

I will admit that I am doing Maths Extension 2 topics, and can average around 65% , so does that put me in the 99+ ATAR equivalent?

yes

 

[davidgoes4wce]

All along I had been thinking you needed to get 90% in raw marks+ in order to get an E4.

 

[Green Yoda]

OK I'm reading these values wrong. But its pretty interesting,


These tables were obtained from an online source (tutoring company):

Maths Advanced
Year HSC raw exam score ATAR equivalent
2014 97% 99.95
2010 90% 99.2
2013 77% 96.2
2009 58% 81.2


Maths Extension 1
Year HSC raw exam score ATAR equivalent
2011 81% 99.9
2011 63% 98.2
2010 52% 95.5

Maths Extension 2
Year HSC raw exam score ATAR equivalent
2014 79% 99.95
2011 54% 99.3
2009 45% 98.1

So am I reading this correctly, from those tables (presuming that you performed at a similar level in your school assessments), an 80% mark in Maths Extension I would equate to an ATAR equivalent above 99+?

Raw marks cannot be atar equivalent...its the hsc marks that can be compared to the atar as Raw marks are not disclosed and and have great amount of uncertainty as it can easily change with the option topic.

 

[davidgoes4wce]

Raw Marks from that Raw Mark data file shows two scores which got the cut off for a Band 6 were: 89 and 85.

THat isn't much information but I would have thought that would have been the cut off around the 85-87% raw score.

 

[davidgoes4wce]

What I would be more interested to see is what the breakdown of B4 B5 and B6 for General maths, in terms of the raw score.

Was wondering do they produce things like examiners reports , i.e , a breakdown of every question in the HSC, and how the candidates went for every question? (i.e Mean, Standard deviation etc)

 

[davidgoes4wce]

OK I found this from the Board of Studies webpage

Band 1= 7.51%
Band 2=17.57%
Band 3=24.36%
Band 4=24.65%
Band 5=20.23%
Band 6=5.65%

Total Candidates in 2015=31,514

From what I gather, the Band is almost like a pre-determined rank of where you compare against other students. I saw that there was a bell curve shape distribution with the majority of the scores being in the B3 and B4 range.

For current 2016 General maths students you could almost think of in a class size of 20 students, if you are ranked 1st in your class, you would be a B6 range. Assuming your school is a competitive school, there might be a leeway of the top 2-3 students per class size of 20 students.

I have picked up a student recently (had about 6 lessons with him so far), who scored 23.75% in his half-yearlies. (I picked him up after his half-yearly results). From what I gather with that anything <50% is classified as a Band 1.

 

[davidgoes4wce]

As a ball park figure,

A Band 6 would mean you are top of your class, #1, in a class size of 20.

A Band 5 would mean roughly speaking you would be ranked around #2-5 in a class size of 20.

A Band 4 would mean you would be ranked #6-#10 or so in a class size of 20.

A Band 3 would mean mean ranked #11-#14 of students in a class size of 20

(Of course there are alot of assumptions here . I assume that all schools are weighted equally being one of them)

I think for me though the general rule, is if you can get 90% of the questions right whether it be MCQ from past papers of your school/other schools, HSC papers, Chapter Reviews in Cambridge/New Century/Oxford you will get that Band 6.

Band 5 I would love to make an educated guess, I reckon 76-89% of questions right would equate to that category.

 

[davidgoes4wce]

As a side note, I do tutor a student at St Andrews Cathedral, who gets around 90-95% of General Maths questions right, going from Trial Maths Enterprises, Cambridge textbook Review questions, Oxford Review questions, and HSC Exam papers and he is in Year 11.

I think he would be clearly a Band 6 student and he told me he was ranked 6th in General Maths (I don't know if he was referring to his class size OR the overall General Maths students at that school) Im assuming it to be school cohort rather than class size.

 

[davidgoes4wce]

Not sure if my student reads this forum but he loves to rub it into me when I get a General Maths question wrong as well.

One of the downfalls of being a tutor/teacher is if we stuff up, we get a frown, a puzzled look, heckled, abused, student makes jokes about us etc