A Different World Episode Guide Season 6 on CONDUCT.EDU.VN offers a comprehensive look at the memorable episodes, characters, and storylines of this iconic season, providing you with a clear understanding of the plot, themes, and significant moments. Discover in-depth episode summaries, guest star appearances, and behind-the-scenes details that will enhance your appreciation for this classic TV show, ensuring you never miss out on the cultural significance and TV excellence.
Table of Contents
- Introduction to A Different World Season 6
- Honeymoon in L.A. (1) & (2)
- Interior Desecration (a.k.a. Sofa, So Good)
- Somebody Say Ho
- Really Gross Anatomy
- Don’t Count Your Chickens Before They’re Axed
- The Little Mister
- Baby, It’s Cold Outside
- Faith, Hope and Charity (1) & (2)
- Original Teacher
- Occupational Hazards
- White Christmas
- To Whit, With Love
- Happy Birthday to Moi
- Mind Your Own Business
- When One Door Closes… (1) & (2)
- Great X-Pectations
- Lean on Me
- Dancing Machines
- Cabin in the Sky
- Homey, Don’t Ya Know Me?
- College Kid
- A Rock, a River, a Lena
- FAQ: Understanding A Different World Season 6
- Conclusion: Why A Different World Season 6 Still Matters
1. Introduction to A Different World Season 6
Season 6 of A Different World marked a pivotal point in the series, delving deeper into the characters’ lives as they navigated personal growth, social issues, and evolving relationships. This season aired during a time of significant cultural and social change, reflecting the realities and challenges faced by young African Americans in the early 1990s. CONDUCT.EDU.VN provides an in-depth exploration of each episode, offering a richer understanding of the show’s enduring themes, from racial identity and social justice to the complexities of love and career aspirations. The season not only entertained but also sparked important conversations, making it a significant contribution to television history and pop culture.
2. Honeymoon in L.A. (1) & (2)
These episodes, directed by Debbie Allen and written by Susan Fales and Glenn Berenbeim, respectively, capture the immediate aftermath of Dwayne and Whitley’s wedding, plunging them into the chaos of the 1992 Los Angeles riots following the Rodney King verdict.
2.1 Honeymoon in L.A. (1): The Spark of Social Turmoil
The episode begins with Dwayne and Whitley reminiscing about their honeymoon in Los Angeles. Whitley’s insistence on shopping in Beverly Hills contrasts sharply with Dwayne’s trip to Inglewood for basketball tickets. The announcement of the Rodney King verdict triggers riots, leaving Whitley stranded as stores close down. Dwayne, upon hearing the verdict, expresses his frustration by kicking his rental car, leading to a confrontation with the police. Meanwhile, at Hillman, students and staff debate the implications of the verdict. Lena views it as another instance of racial injustice, while others critique the prosecution’s approach. Freddie’s transformation is also highlighted, as she embraces a new look and pursues law school, sparking debate with Lena about effecting change from within the system.
Guest stars include Sister Souljah, Gilbert Gottfried, and Debbie Allen, who makes a cameo scrubbing her star on the Hollywood Walk of Fame. The episode effectively uses the real-life backdrop of the L.A. riots to explore themes of racial tension, social justice, and personal responsibility.
2.2 Honeymoon in L.A. (2): Navigating the Riot’s Aftermath
The second part of the honeymoon saga sees Dwayne and Whitley continuing to recount their experiences during the riots. Dwayne avoids arrest due to the police being called away, while Whitley witnesses looting in Beverly Hills. Dwayne encounters looters in Inglewood, attempting to mediate but ultimately having his car stolen. Whitley connects with a homeless man who views the riots as a cry for visibility. Back at Hillman, Col. Taylor draws parallels to the Watts riots, while Lena’s inflammatory comments spark a discussion about racial sensitivity. Freddie’s relationship with Ron also develops, adding a personal dimension to the social upheaval.
Roseanne and Tom Arnold make guest appearances as looters, adding a satirical touch to the episode. The episode highlights the diverse perspectives on the riots and their impact, emphasizing the importance of empathy and understanding in times of crisis.
3. Interior Desecration (a.k.a. Sofa, So Good)
Directed by Debbie Allen and written by Jeanette Collins and Mimi Friedman, this episode focuses on the domestic challenges faced by Dwayne and Whitley as they settle into married life, alongside the evolving romantic entanglements of Freddie and Ron.
3.1 Marital Disagreements and Romantic Tensions
Whitley and Dwayne clash over furniture for their new home, symbolizing their differing tastes and approaches to married life. Freddie and Ron struggle to resist their attraction, leading Freddie to suggest Ron find alternative accommodation. Ron’s temporary stay on the Waynes’ couch causes further complications, resulting in Dwayne conceding to Whitley’s furniture preferences. Meanwhile, Lena’s reluctance to participate in Height Hall’s stepping routine evolves into an opportunity to incorporate her poetry, showcasing her artistic growth and integration within the community.
Josephine Premice guest stars as Desiree Porter, adding comedic flair to the episode. The episode balances the lightheartedness of domestic disputes with the complexities of romantic relationships, exploring themes of compromise, self-expression, and personal boundaries.
4. Somebody Say Ho!
Directed by Debbie Allen and written by Reggie Rock Blythewood, this episode tackles issues of sexism, free speech, and misjudgment within the context of Hillman’s campus life.
4.1 Campus Conflicts and Misunderstandings
Charmaine’s assertive behavior in Dwayne’s statistics class leads to her being labeled with a derogatory sign, igniting a campus-wide conflict. Terrell is initially blamed, prompting Freddie to defend his right to free expression in student court. The episode delves into the complexities of intention versus impact, as Charmaine feels publicly humiliated. The revelation that Gina was the true perpetrator underscores the dangers of misjudgment and the importance of accountability. Charmaine and Terrell eventually reconcile, highlighting themes of forgiveness and understanding.
The episode sparks conversations about sexism, free speech, and the power of assumptions, encouraging viewers to consider the consequences of their actions and words.
5. Really Gross Anatomy
Directed by Jasmine Guy and written by Scott Sanders, this episode explores themes of jealousy, academic pressure, and personal freedom, set against the backdrop of Hillman’s rigorous academic environment.
5.1 Jealousy, Academic Stress, and Personal Freedom
Ron’s jealousy over Freddie’s camping trip with Shazza leads him to prepare a romantic dinner for Kim, highlighting his conflicted feelings. Kim’s struggles with dissecting a cadaver in anatomy class showcase the pressures of medical school, leading to an unexpected romantic encounter with Ron. Meanwhile, Dwayne relishes Whitley’s absence, only to find himself longing for companionship, illustrating the complexities of marriage. Charmaine’s job at the Pit adds another layer to the campus dynamics, creating friction with Lena.
Robert Guillaume guest stars as Professor Murphy, adding gravitas to the academic setting. The episode explores the challenges of balancing personal desires with academic responsibilities, emphasizing the importance of communication and self-awareness in relationships.
6. Don’t Count Your Chickens Before They’re Axed
Directed by Debbie Allen and written by Gina Prince, this episode delves into themes of financial instability, career uncertainty, and relationship dynamics, as Whitley faces job loss and Ron and Freddie grapple with their feelings.
6.1 Career Setbacks and Romantic Entanglements
Whitley’s company faces a merger, leading to her department being laid off. Determined to save a painting, she and Dwayne invest in it, only to be burglarized, compounding their financial woes. Meanwhile, Kim and Freddie attempt to reconcile Ron and Shazza, but their unresolved feelings for each other resurface, leading to a breakup between Kim and Ron. Despite their chemistry, Ron stops short of confessing his feelings for Freddie.
The episode explores the anxieties of job insecurity and the resilience required to navigate financial hardship. It also highlights the complexities of love and attraction, as Ron and Freddie struggle to reconcile their feelings with their respective relationships.
7. The Little Mister
Directed by Debbie Allen and written by Glenn Berenbeim, this episode uses a dream sequence to explore themes of gender roles, sexism, and respect in relationships, as Dwayne grapples with his own biases.
7.1 Exploring Gender Dynamics Through a Dream
Dwayne’s sexist comments at a Halloween party lead to a dream in which women dominate the political landscape, and Whitley is a philandering politician. Dwayne, as Whitley’s husband Hilliard, feels disrespected and marginalized, highlighting the frustrations of being unheard. The dream serves as a wake-up call, prompting Dwayne to apologize to Whitley for his insensitive remarks.
The episode offers a satirical yet insightful commentary on gender dynamics, challenging viewers to examine their own biases and assumptions about gender roles in relationships and society.
8. Baby, It’s Cold Outside
Directed by Glynn Turman and written by Jasmine Guy, this episode addresses themes of intimacy, communication, and honesty in relationships, as Dwayne and Whitley struggle to connect, and Freddie confronts her feelings for Ron.
8.1 Intimacy Issues and Romantic Confessions
Whitley and Dwayne’s lack of intimacy prompts Whitley to seek advice on Montel Williams’ talk show, unaware that Gina has organized a viewing party. The episode explores the challenges of maintaining intimacy amidst financial stress and conflicting schedules. Meanwhile, Freddie confesses her attraction to Ron to Kim, leading to open communication and understanding. Whitley and Dwayne eventually reconcile, underscoring the importance of communication in resolving relationship issues.
Montel Williams makes a guest appearance as himself, adding a contemporary touch to the episode. The episode highlights the importance of addressing intimacy issues and fostering open communication in relationships, while also exploring the complexities of attraction and honesty in friendships.
9. Faith, Hope and Charity (1) & (2)
These episodes, directed by Debbie Allen and written by Susan Fales, explore themes of family dynamics, personal growth, and relationship challenges during the Thanksgiving holiday.
9.1 Faith, Hope, and Charity (1): Unexpected Reunions and Family Secrets
Whitley’s mother, Marion, arrives with her much younger fiancé, Malik, causing Whitley to question his motives. Dwayne’s estranged mother, Adele, also appears, adding tension to the holiday gathering. Meanwhile, Freddie tries to recommit to Shazza while grappling with her feelings for Ron, leading to a conflict between her personal desires and her law school obligations.
Nestor Carbonell guest stars as Malik Velasquez, adding intrigue to the family drama. The episode sets the stage for a Thanksgiving filled with revelations, confrontations, and emotional reconciliations.
9.2 Faith, Hope, and Charity (2): Truths Revealed and Bonds Strengthened
Marion and Adele clash over Thanksgiving preparations, leading to comedic chaos. Marion’s revelation that Malik is an actor hired to break up Dwayne and Whitley adds a surprising twist. Adele and Marion’s arrest leads to a bonding moment, as they realize their shared disdain for their children’s marriage. Freddie ends her relationship with Shazza, acknowledging her unresolved feelings for Ron. The episode culminates in reconciliations and heartfelt confessions, underscoring the importance of family and forgiveness.
The episode resolves the conflicts introduced in Part 1, emphasizing the power of honesty and acceptance in strengthening family bonds.
10. Original Teacher
Directed by Debbie Allen and written by Reggie Rock Blythewood, this episode addresses themes of mentorship, violence, and redemption, as Dwayne works with incarcerated teenagers.
10.1 Mentoring Troubled Youth
Freddie organizes a mentorship program at a juvenile hall, where Dwayne is assigned to mentor two gang members. The episode explores the challenges of breaking through to at-risk youth, as Dwayne confronts their violent backgrounds and lack of hope. Despite resistance, Dwayne’s persistence and genuine concern help the boys express themselves through a rap song, advocating for an end to violence.
Chris Kelly and Chris Smith (Kris Kross) guest star, adding authenticity to the episode’s message. The episode underscores the transformative power of mentorship and the importance of providing opportunities for troubled youth to find redemption and purpose.
11. Occupational Hazards
Directed by Kadeem Hardison and written by Jeanette Collins and Mimi Friedman, this episode explores themes of unemployment, self-reliance, and relationship dynamics, as Whitley faces job loss and Ron and Freddie navigate their feelings.
11.1 Unemployment and Relationship Struggles
Whitley’s job interview setback leads her to file for unemployment, where her attitude irritates a claims officer. Determined to regain financial independence, she sells appliances and takes a phone sales job. Meanwhile, Ron and Freddie struggle to find time alone, highlighting the challenges of their clandestine relationship. Charmaine’s relationship woes provide a contrasting perspective on the complexities of love and connection.
Alaina Reed Hall guest stars as the claims officer, adding authenticity to the unemployment office setting. The episode explores the emotional and practical challenges of unemployment, while also delving into the complexities of forbidden love and the importance of self-reliance.
12. White Christmas
Directed by Debbie Allen and written by Glenn Berenbeim, this episode explores themes of family acceptance, interracial relationships, and personal choices during the Christmas season.
12.1 Holiday Reflections and Relationship Decisions
Freddie’s mother, Joni, visits and disrupts Freddie’s life by counseling her friends, exposing Kim’s bitterness over Freddie’s relationship with Ron. Joni’s presence forces Freddie to confront her own choices and feelings. Meanwhile, Whitley takes a job at a pancake restaurant to earn money for Dwayne’s Christmas present, but is quickly overwhelmed. Ron’s ultimatum forces Freddie to choose between him and Shazza, leading her to finally embrace her feelings for Ron.
Anita Morris guest stars as Joni Brooks, Freddie’s mother, adding depth to Freddie’s character. The episode explores the complexities of family acceptance, the challenges of interracial relationships, and the importance of making difficult choices in love and life.
13. To Whit, With Love
Directed by Debbie Allen and written by Gina Prince, this episode addresses themes of education, empowerment, and challenging stereotypes, as Whitley takes on a substitute teaching position at a struggling elementary school.
13.1 Empowering Students Through Education
Whitley’s initial struggles with an unruly class are transformed when she challenges them to prove their intelligence. Using her own background, she covers material omitted from outdated textbooks, empowering her students to succeed. Meanwhile, Dorian and Lena’s relationship takes a turn when Dorian reveals his views on pre-marital sex, sparking a discussion about values and expectations.
Marla Gibbs guest stars as Principal Shaw, adding authority and wisdom to the school setting. The episode underscores the transformative power of education and the importance of challenging stereotypes, while also exploring the complexities of relationships and differing values.
14. Happy Birthday to Moi
Directed by Debbie Allen and written by Thomas Perry Dance, this episode explores themes of trust, surprises, and academic integrity, as Whitley’s birthday plans go awry and Charmaine and Terrell face academic challenges.
14.1 Birthdays and Academic Misconduct
Dwayne’s surprise birthday plans for Whitley are complicated when he discovers she’s been manipulating the situation. Meanwhile, Charmaine and Terrell’s struggles in French class lead them to academic misconduct, resulting in humiliation and consequences. The episode highlights the importance of trust and communication in relationships, while also emphasizing the consequences of academic dishonesty.
Josephine Premice guest stars as Desiree Porter, adding comedic flair to the birthday festivities. The episode explores the challenges of maintaining trust and integrity in both personal and academic pursuits.
15. Mind Your Own Business
Directed by Debbie Allen and written by Jeanette Collins and Mimi Friedman, this episode explores themes of entrepreneurship, collaboration, and self-discovery, as Ron opens a club and Lena, Gina, and Charmaine help a group of aspiring singers.
15.1 Entrepreneurial Ventures and Unexpected Talents
Ron’s decision to open a club leads to unexpected challenges when his booked band backs out. With the help of Lena, Gina, and Charmaine, a group of awkward young women transform into a captivating act. The episode highlights the importance of collaboration and self-discovery, as the young women find their voice and Ron learns the value of teamwork.
En Vogue performs “Free Your Mind,” adding star power to the episode. The episode celebrates the spirit of entrepreneurship and the transformative power of self-expression, while also emphasizing the importance of collaboration and support.
16. When One Door Closes… (1) & (2)
These episodes, directed by David Blackwell and written by Karen Kennedy and Susan Fales, mark a significant turning point in the series, as Dwayne and Whitley prepare to move to Tokyo and Kim accepts Spencer’s marriage proposal.
16.1 When One Door Closes… (1): New Beginnings and Difficult Decisions
Dwayne’s development of a grammar-based video game leads to a job offer in Tokyo, creating a dilemma for him and Whitley. Whitley’s pregnancy adds another layer of complexity to their decision. Meanwhile, Kim finally accepts Spencer’s marriage proposal, marking a new chapter in her life. The episode explores the challenges of balancing personal aspirations with relationship commitments.
The episode sets the stage for significant life changes, as Dwayne and Whitley contemplate a move to Tokyo and Kim prepares for marriage.
16.2 When One Door Closes… (2): Farewells and Future Hopes
Dwayne and Whitley’s impending move to Tokyo prompts emotional farewells and reconciliations. Marion and Adele’s initial disapproval gives way to acceptance, while Ron and Freddie reconcile after a fight over Dwayne’s video game. The episode culminates in a going-away party, where friends share heartfelt stories and wish the couple luck. Dwayne and Ron’s reconciliation leads to Ron becoming the child’s godfather, symbolizing forgiveness and lasting friendship.
The episode provides closure to several storylines, as Dwayne and Whitley embark on a new adventure and friendships are strengthened.
17. Great X-Pectations
Directed by Glynn Turman and written by Jeanette Collins and Mimi Friedman, this episode addresses themes of social justice, education, and personal responsibility, as students explore the relationship between Dr. Martin Luther King Jr. and Malcolm X.
17.1 Social Justice and Personal Responsibility
A class assignment prompts students to explore the potential dialogue between Dr. Martin Luther King Jr. and Malcolm X, leading to discussions about social justice and activism. Terrell’s decision to bring a gun to class results in his expulsion, but Dwayne’s intervention and Terrell’s performance of the assignment lead to his reinstatement. The episode underscores the importance of education as a means of achieving change and the need to channel anger into constructive action.
The episode explores the complexities of social justice and the importance of education in shaping perspectives and driving positive change.
18. Lean on Me
Directed by Henry Chan and written by Gina Prince, this episode explores themes of mentorship, competition, and disappointment, as Dwayne seeks a summer job and confronts the realities of the professional world.
18.1 Professional Challenges and Disappointments
Dwayne’s pursuit of a summer job with Kinishewa leads to disappointment when he learns that another applicant received the position. Kinu’s presence adds tension, as Whitley suspects she is seeking revenge. The episode explores the challenges of navigating the professional world and the importance of resilience in the face of disappointment.
The episode underscores the competitive nature of the job market and the need for perseverance in pursuing career goals.
19. Dancing Machines
Directed by Bruce Kerner and written by Scott Sanders, this episode explores themes of mentorship, mathematical genius, and fundraising, as Whitley mentors a young student and Ron organizes a dance-a-thon.
19.1 Mentorship and Fundraising
Whitley’s mentorship of a young student reveals her mathematical genius, while Ron organizes a dance-a-thon to raise money for Amnesty International. The episode highlights the importance of mentorship and the potential for unexpected discoveries. However, Ron’s actions anger Freddie when he prioritizes profits over the cause, leading to a conflict about values and priorities.
The episode underscores the importance of mentorship in nurturing potential and the need to align fundraising efforts with ethical principles.
20. Cabin in the Sky
Directed by Henry Chan and written by Reggie Rock Blythewood, this episode explores themes of relationships, communication, and family dynamics, as Dwayne and Whitley’s romantic getaway is complicated by the presence of Mr. and Mrs. Gaines.
20.1 Romantic Getaways and Family Dynamics
Dwayne and Whitley’s attempt at a romantic getaway is disrupted by the presence of Mr. and Mrs. Gaines, leading to comedic mishaps and relationship conflicts. Mr. Gaines’ decision to leave his son Darnell in charge of the Pit results in chaos, highlighting the challenges of family dynamics. The episode underscores the importance of communication and understanding in maintaining healthy relationships.
The episode explores the complexities of family dynamics and the challenges of balancing personal desires with family responsibilities.
21. Homey, Don’t Ya Know Me?
Directed by Kadeem Hardison and written by Ron Moseley, this episode explores themes of personal growth, past relationships, and self-acceptance, as Lena is visited by her ex-boyfriend from Baltimore.
21.1 Past Relationships and Personal Growth
Lena’s ex-boyfriend, Piccolo, visits from Baltimore, challenging her current relationship with Dorian and forcing her to confront her past. Piccolo’s attempts to win her back highlight the complexities of personal growth and self-acceptance. The episode underscores the importance of staying true to oneself and making choices that align with personal values.
Tupac Shakur guest stars as Piccolo, adding star power and depth to the episode. The episode explores the challenges of reconciling past relationships with present aspirations and the importance of personal growth in shaping one’s future.
22. College Kid
Directed by Debbie Allen and written by Reggie Rock Blythewood and Gina Prince, this episode explores themes of second chances, mentorship, and personal growth, as a former baseball star enrolls in college and Gina confronts her abusive ex-boyfriend.
22.1 Second Chances and Personal Transformation
A former baseball star, Langston Paige, enrolls in college, finding mentorship and personal growth through his interactions with the students. Meanwhile, Gina confronts her abusive ex-boyfriend, Dion, asserting her independence and strength. The episode underscores the transformative power of education and the importance of standing up against abuse.
Billy Dee Williams guest stars as Langston Paige, adding star power and gravitas to the episode. The episode explores the challenges of personal transformation and the importance of seeking second chances.
23. A Rock, a River, a Lena
Directed by David Blackwell and written by Glenn Berenbeim, this episode celebrates the legacy of Lena Horne and explores themes of respect, community, and breaking down barriers.
23.1 Celebrating Legacy and Community
Lena Horne’s visit to Hillman College inspires Whitley to organize a musical tribute, while Kim emphasizes the importance of respecting all members of the community. The episode culminates in a celebration of legacy and community, as Lena Horne honors Mr. Gaines for his contributions.
Lena Horne guest stars as herself, adding authenticity and prestige to the episode. The episode celebrates the legacy of Lena Horne and the importance of community, respect, and breaking down barriers.
24. FAQ: Understanding A Different World Season 6
Q1: What are the main themes explored in Season 6 of A Different World?
A1: Season 6 explores themes of personal growth, social justice, relationship complexities, career challenges, and the importance of community.
Q2: How does the Rodney King verdict impact the characters in the “Honeymoon in L.A.” episodes?
A2: The verdict triggers riots that directly affect Dwayne and Whitley, exposing them to the social unrest and racial tensions of the time. The event also sparks discussions among the Hillman students and staff about racial injustice.
Q3: What is the significance of Freddie’s transformation in Season 6?
A3: Freddie’s transformation, marked by her new look and pursuit of law school, symbolizes her desire to effect change from within the system, leading to debates with Lena about different approaches to social activism.
Q4: How does the episode “The Little Mister” address gender roles and sexism?
A4: Through a dream sequence, the episode explores the impact of sexist attitudes and the importance of mutual respect in relationships, prompting Dwayne to reflect on his own biases.
Q5: What challenges do Dwayne and Whitley face in their relationship during Season 6?
A5: Dwayne and Whitley face challenges related to financial instability, career uncertainty, and communication issues, as well as the stress of planning a move to Tokyo.
Q6: What role does mentorship play in Season 6 of A Different World?
A6: Mentorship is a recurring theme, exemplified by Dwayne’s work with incarcerated teenagers in “Original Teacher” and Whitley’s guidance of a young student in “Dancing Machines,” highlighting the transformative power of guidance and support.
Q7: How does the episode “A Rock, a River, a Lena” celebrate legacy and community?
A7: Lena Horne’s visit to Hillman College provides an opportunity to celebrate her legacy and the contributions of all members of the community, breaking down social barriers and fostering unity.
Q8: What is the significance of Dwayne and Whitley’s decision to move to Tokyo?
A8: The move to Tokyo symbolizes new beginnings and the couple’s willingness to embrace change, while also creating an opportunity for personal and professional growth.
Q9: How does Season 6 address the challenges of entrepreneurship?
A9: Through Ron’s experience opening a club, the season explores the challenges of entrepreneurship, including financial risks, collaboration, and the importance of ethical business practices.
Q10: What lasting messages does Season 6 of A Different World convey?
A10: Season 6 conveys messages about the importance of personal growth, social responsibility, community engagement, and the pursuit of dreams, encouraging viewers to embrace change and strive for a better world.
25. Conclusion: Why A Different World Season 6 Still Matters
Season 6 of A Different World remains a relevant and impactful portrayal of the challenges and triumphs of young African Americans navigating college life and adulthood. The season’s exploration of social issues, personal relationships, and career aspirations continues to resonate with audiences today, offering valuable insights into the complexities of race, identity, and community. CONDUCT.EDU.VN is dedicated to providing comprehensive resources and guidance to help you navigate the ethical and behavioral standards that shape our society. For more information on ethical conduct and responsible behavior, please visit our website at CONDUCT.EDU.VN, or contact us at 100 Ethics Plaza, Guideline City, CA 90210, United States, or via WhatsApp at +1 (707) 555-1234. Let us help you build a better world, one ethical decision at a time, guided by respect, responsibility, and integrity. Our contact information: Address: 100 Ethics Plaza, Guideline City, CA 90210, United States. Whatsapp: +1 (707) 555-1234. Trang web: conduct.edu.vn.