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[MATH3121] Abstract Algebra (3 units) Edit

Semester of Enrollment: 2013 Fall

Instructor: ZHU, Yong-chang

Grade: 唔清楚

Comments: D人成日話呢個course爛grade, 實情唔清楚 (Math course 大班兼required 有邊科唔爛grade?)

呢個course教的內容淺過同少過 3131 好多, 只係會教D好基本的terminology, 例如 Group, Homomorphism, Ring, Field, Factor Group, 但係ideal 果D都唔會教

功課唔難, 考試都唔難, 不過有 MC, Final 有70%應該都可以A range

教授都認為呢個course過份地淺, 但係大班同 pure math & Math-CS core 就無辦法了

個人認為如果真係想學下algebra 的可以take/sit 3131/5111

Grading: 35% Homework, 65% Final

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Semester of Enrollment: 2014 Fall

Instructor: ZHU, Yongchang

Grade: (Good/Bad/...) Bad

Comments: 同上面既comment一樣,果course講左D乜我就唔多講啦. 教授語悶比較悶,但上堂每次一講書都會黎review先,之後先有野抄. 佢webpage得功課,notes上堂先有.至於notes,內容同本書差唔多,而佢final試過出題考人有冇上堂,建議唔好走堂.

Grading: (% of each part, e.g. assignments/midterm/final/lab/....)

35% Homework (Total 5份)

65% Final (有7題,有溫書既70%樓上唔難,出4題proof)

有人問教授要幾分A Range,教授都話final 88/100左右先有機A Range. 再加上佢講過佢A Range唔係拉curve俾而且派得唔多.嚴格黎講,A Range難但B Range易. 亦都算係高分低grade既course.不過如果想拎B/B+,上足堂,溫足書,有機會拎到.

Btw,其實3121都的確係淺,3131教既算係比較正統abstract algebra少少,建議大家可sit.

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Semester of Enrollment: 2014 Fall

Instructor: ZHU, Yongchang

Grade: (Good/Bad/...) Very Bad

Comments: No lecture notes at all, need to go to lesson to copy everything down.

Also, very bad grade. Only around 10 students out of 116 get A range, overall need around 85% sin A-.

Not recommend students to take this course, as Zhu Yongchang is really extremely bad grade and not responsible. He will not reply any emails.

Moreover, he always says "This course is very easy, you guys learn nothing from this course" during the paper checking session.

Grading: (% of each part, e.g. assignments/midterm/final/lab/....)

35% Homework (everyone basically gets 33% or above)

65% Final (mean is 53/100, SD is 17/100)

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Semester of Enrollment: 2015 Fall

Instructor: ZHU, Yongchang

Grade: 頗爛

Comments: 呢科相對於其他3000-level 既 MATH course 算淺,內容主要係圍繞 groups 同少量既 rings and fields。DSE 有M2 底,識基本既 matrix algebra 就夠 background take 呢科。由於內容可以靠自己睇書理解,功課亦唔難做(除左 proof 要用少少時間諗),所以我走左唔少堂。

prof 每堂開始都會簡單review 返上一堂既野,堂上主要都係講 definitions 同 examples ,但係稍悶,亦都要抄筆記,如果中意呢種學習模式不妨上堂,唔中意既話走堂都無咩大損失。對於pure math 底唔厚既同學,一定要自己睇書,因為尤其是 proof 既題目係非常要求你理解每個 term, theorem 既概念同運用,last minute 先爆係絕對無幫助。

今年10月中professor 無端端改scheme,由 25% HW + 75% Final,改左做25% HW + 10% Quiz + 65% Final,11月中多左個quiz,但唔難,時間非常充裕,80分鐘做5題,4題送分1題proof,proof 同HW 頗為相似,好多人40分鐘就走左(唔知係因為淺得滯定唔識做條proof 自動棄療?)。

考試方面,首先一定有送分題,quiz 有8成、final 有6成左右,熟讀所有 theorem,識做簡單computation (例如compute order, permutation groups, give example of certain groups/subgroups, check group/ring homomorphisms, proof 入面 check properties of groups/rings) 就可以攞足,咁就至少可以踩mean。對比起2011年同 2013年 final,今年 final 就比之前淺左少少,題目比較 standard,唔會有好奇怪既 construction,而且仲cut 埋較難既 group action。考之前操兩三份 past paper 思路就會清晰好多。

Grading:

25% Homework (5份)

10% Quiz (Mean 78.22 SD 24.74)

65% Final (Mean 62.00 SD 21.53)

Overall Mean 68.10 SD 19.68

換言之 overall 大概要 88% 分先 above 到1SD,而且呢個 professor 出名比 grade 手緊,final 有D咩甩漏就係咁先。目測 90% 以上先穩袋 A range。