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Cryptography, Autumn 2007, TDA351

Your own effort

1. How many hours per week did you spend on this course?

63 svarande

At most 15 hours/week»		28		44%
Around 20 hours/week»		24		38%
Around 25 hours/week»		10		15%
Around 30 hours/week»		1		1%
At least 35 hours/week»		0		0%

Genomsnitt: 1.74

- Went on to little problem sessions and prepared myself to litlle for them.» (At most 15 hours/week)
- I have never ever spent more then 20 hours/week on a course. The workload on this course was heavier then average, but not to much.» (At most 15 hours/week)
- Some weeks less, some weeks more!» (At most 15 hours/week)
- Had another course that took most of the time.» (At most 15 hours/week)
- Ca 4 timmar på problem session varje vecka, ungefär det samma på home assignment. 4 timmar föreläsningar + 2 timmar på fredagen för problem session.» (At most 15 hours/week)
- Heavy workload on other course.» (Around 20 hours/week)
- Home assignment took time be was worth it.» (Around 20 hours/week)
- -» (Around 20 hours/week)

2. How large part of the teaching offered did you attend?

62 svarande

0%»		1		1%
25%»		7		11%
50%»		10		16%
75%»		20		32%
100%»		24		38%

Genomsnitt: 3.95

- Collidwith Advanced Algorithm course» (25%)
- The course exercises allways was on the same time as the other course. » (25%)
- All lectures but not all of the problem sessions» (75%)
- Actually it was more than 75%.» (75%)
- I really liked the lectures, keep up the good work Björn!» (100%)
- Good lectures and good teacher.» (100%)
- I missed one course because I was abroad, otherwise I would have been there. I liked them a lot. » (100%)
- Very very good and lovely professor :)» (100%)
- Var med på de flesta problem sessions.» (100%)
- -» (100%)

Goals and goal fulfilment

3. How understandable are the course goals?

I have not seen/read the goals»		13		20%
The goals are difficult to understand»		0		0%
The goals give some guidance, but could be clearer»		17		26%
The goals clearly describe what I am supposed to learn»		33		52%

Genomsnitt: 3.11

- But I still feel as if I have a clear picture on how everything works that the course has covered.» (I have not seen/read the goals)
- Maybe a several bulleted lists would give better structure.» (The goals clearly describe what I am supposed to learn)
- -» (The goals clearly describe what I am supposed to learn)

4. Are the goals reasonable considering your background and the number of credits?

53 svarande

No, the goals are set too low»		0		0%
Yes, the goals seem reasonable»		50		94%
No, the goals are set too high»		3		5%

Genomsnitt: 2.05

- -» (Yes, the goals seem reasonable)
- The math is too hard.» (No, the goals are set too high)

5. Did the examination assess whether you have reached the goals?

No, not at all»		1		1%
To some extent»		17		30%
Yes, definitely»		34		60%
I don"t know/have not been examined yet»		4		7%

Genomsnitt: 2.73

- Jag tycker att de frågor som var med krävde förståelse för varför saker och ting är som dom är. Sen att man inte får plats med uppgifter från alla områden är en annan sak, och där kan man ha tur om man inte lärt sig allt lika bra. Men det finns ingen lösning på det problemet med avseende på hur tentorna är idag.» (To some extent)
- Good exam, covered the most.» (Yes, definitely)
- Good exam, was really fun for a change:)» (Yes, definitely)
- Good exam covering many topics.» (Yes, definitely)
- -» (Yes, definitely)

Teaching and course administration

6. To what extent has the teaching been of help for your learning?

Small extent»		3		4%
Some extent»		14		22%
Large extent»		29		46%
Great extent»		17		26%

Genomsnitt: 2.95

- The teaching was EXCELLENT!!!» (Large extent)
- Det går lite för fort fram på vissa ställen där det är lite mer matte. Givetvis är det svårt att förmedla matte på en föreläsning så att man förstår då det tar tid. Jag skulle tycka det var bra att ha lite matte i problem session, eller dedikerade matteuppgifter som är speciellt utformade för att ge en förståelse över hur det fungerar mer än att man måste lösa något väldigt svårt problem. » (Large extent)
- The lectures was great. In contrast to most teachers on chalmers Björn von Sydow is a great speaker and it is not hard to focus during the lectures.» (Great extent)
- Even though the slides are good, I liked the teaching too. It helped a fast understanding.» (Great extent)
- Very good information in the lectures presented in a very good way.» (Great extent)
- I feel obliged to comment on the lecturer"s performance since he really managed to make to lectures interesting.» (Great extent)

7. To what extent has the the course literature and other material been of help for your learning?

Small extent»		17		27%
Some extent»		18		29%
Large extent»		23		37%
Great extent»		4		6%

Genomsnitt: 2.22

- Never even bought the course literature.» (Small extent)
- Didnt buy the course book, used Wikipedia and other online sources instead» (Small extent)
- Didn"t buy the book, but the slides where godd.» (Small extent)
- Didnt buy it» (Small extent)
- Didn"t use any course literature. The information given in the lectures was very good and enough to complete the assignments and pass the course. At points when more information than the lectures were needed it could be found in the internet.» (Small extent)
- Tyckte slidesen gav en klarare blick över det viktiga. Om det var något man inte förstod senare så kunde man använda boken eller internet (wikipedia). Kinesiska restsatsen är även bättre förklarad i Diskretmatteboken av Johan Jonasson och Stefan Lemurell, som IT-elever kanske fortfarande har kvar sen första året.» (Small extent)
- I"ve barely opened the book.. The lecture slides was enough for most of the course I think.» (Small extent)
- Didn"t buy book. » (Some extent)
- I hardly opened the book at all, it is not necessary. The lectures, practice, slides and the homework more than well force me to understand.» (Some extent)
- Mostly the slides. Did not read the book much.» (Some extent)
- Slides a good but book aren"t that good» (Large extent)
- not the book, but the slides are great!» (Large extent)
- I didn"t use any book. But the slides were really helpful. Moreover, giving the previous exams is very useful, even at the beginning of the course, to havean idea of what could be asked at the end.» (Large extent)
- -» (Large extent)

8. How well did the course administration, web page, handouts etc work?

Very badly»		0		0%
Rather badly»		3		4%
Rather well»		20		32%
Very well»		39		62%

Genomsnitt: 3.58

- The assignments helped me almost nothing into understanding cryptography better.» (Rather badly)
- This is how a course should work. All the information avalible on the web in case you miss/choose to not go on a lecture.» (Very well)
- Great with everything as pdf up early.» (Very well)
- the assignments was interesting and challenging.» (Very well)
- Thumbs up!» (Very well)
- Onödigt jobbigt att behöva kryptera varje home assigment och retur. Det räcker med att ha med det som en uppgift i home assigment 2. Sen kan en hel del av oss redan gpg eftersom vi har med det i en lab på Computer Security, som jag tror majoriteten av de som läser kryptokursen har läst.» (Very well)
- Best course page encountered at Chalmers.» (Very well)
- The homepage with course related material and important information was always up to date. It was also good that it provided links to extra reading material and videos from well known researchers in the cryptography field.» (Very well)

Study climate

9. How were the opportunities for asking questions and getting help?

Very poor»		0		0%
Rather poor»		1		1%
Rather good»		18		28%
Very good»		28		44%
I did not seek help»		16		25%

Genomsnitt: 3.93

- It was no problem but of course you can ask more in a course that have "räknestuga"» (Rather good)
- when I had questions, which I had 1-2 times, I asked them during the pause of the lectures and got good answers.» (Rather good)
- Snabba svar och bra hjälp, inget att klaga på.» (Very good)
- Got the help I needed from my friends» (I did not seek help)
- -» (I did not seek help)

10. How well has cooperation between you and your fellow students worked?

Very poorly»		2		3%
Rather poorly»		2		3%
Rather well»		19		30%
Very well»		33		52%
I did not seek cooperation»		7		11%

Genomsnitt: 3.65

- lol my lab partner was a bit lazy» (Rather well)
- But I knew them from before» (Very well)
- -» (Very well)
- No comment» (I did not seek cooperation)

11. How was the course workload?

Too low»		0		0%
Low»		0		0%
Adequate»		49		77%
High»		14		22%
Too high»		0		0%

Genomsnitt: 3.22

- The workload was balanced. Here i would like to mention the weekly assignments which were very balanced and did not create an extra burden on the students that would have resulted in compromising other course/s. » (Adequate)
- Även om målet på chalmers är 25 timmar i veckan per kurs och jag kom upp i kanske 14, så tycker jag arbetsbördan var tillräcklig. Lägger man dom 11 timmarna på att studera mer så lär man sig det bättre och kommer att veta mer. Det ska vara upp till studenten hur mycket han vill lägga ner på studierna eftersom det i slutändan är som mål att han ska lära sig något. Så det ni kräver nu räcker för att "tvinga" alla att lära sig tillräckligt, och ni ger möjlighet för dom som vill lägga ner mer tid att göra detta genom att inte ha fler obligatoriska moment. Jag tycker det är bra.» (Adequate)
- -» (Adequate)
- The programming assignment was a beast! Every single evening for that week and the whole of Friday and Saturday to manage it. I"m a bit rusty at programming and I did it alone, though.» (High)
- It was high, but people with two courses per period can manage. However, it may be hard for people with 3 or more courses.» (High)

12. How was the total workload this study period?

Too low»		0		0%
Low»		2		3%
Adequate»		21		33%
High»		23		36%
Too high»		17		26%

Genomsnitt: 3.87

- I do not follow any masters program» (Adequate)
- Total workload was between adequate and high but if told to choose between the two then i would choose Adequate. It was a little high because now every course is 7.5 credit hours therefore every teacher has increased the course content without increasing the duration in time. » (Adequate)
- Jag läste Distributed Systems. Den är ganska simpel för oss som varit på Chalmers sedan tidigare, men jag har hört från studenter från utlandet att dom inte kände igen en del, så det var nog jobbigare för dom.» (Adequate)
- -» (Adequate)
- the other course I read was distributed system, an extremely confusing and badly planned course that took a lot of time because of its flawed structure.» (High)
- Stupid Programming Paradigms took almost all the time so didnt have time to work on the cryptology assingemnts as much as I would have liked» (Too high)
- Reglerteknik took alot time that i could had spent on cryptography» (Too high)
- the other course I had was horribly heavy, so I couldn"t give much time to the cryptography.» (Too high)
- I took one course to much.» (Too high)
- Had another course that required enough time for two courses.» (Too high)

Summarizing questions

13. What is your general impression of the course?

Poor»		0		0%
Fair»		2		3%
Adequate»		6		9%
Good»		28		44%
Excellent»		27		42%

Genomsnitt: 4.26

- Too much math... >_<» (Adequate)
- A very good and interesting course. A plus that it is "stand alone".» (Good)
- One of the most interesting courses I"ve had, though the math part of it may be a bit tough sometimes.» (Good)
- The course relly impressed me. The way it was organized helped a lot in learning. The home assignments were also selected in such a way, that the understanding of the theoretical aspects deepened, as well as basic practical aspects were touched.» (Excellent)
- Good assigmnents, good teacher, even workload throughout the course. Clear instructions on what to study and how to approach the labs. One of the best courses I have taken during my 3.5 years on chalmers» (Excellent)
- I really liked it. I discovered a new field, and I hope to learn more in the future.» (Excellent)
- Good contents and a good lecturer made the course intresting. The knowledge learned during the course feels useful.» (Excellent)
- This was a very good course with a very good instructor.» (Excellent)
- The most interesting course so far!» (Excellent)
- Ive become very intrested to cryptography and i find it fun» (Excellent)
- A very interesting and fun course which gives a foundation to the area of cryptography.» (Excellent)

14. What should definitely be preserved to next year?

15. What should definitely be changed to next year?

16. Additional comments