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Teach & Learn: Professor Margaret Menzin, Simmons University

2025-06-23 7 days ago / 未收藏/ MongoDB | Blog/ 发送到 kindle

MongoDB’s Teach & Learn blog series interviews students and educators worldwide who are using MongoDB to enhance their classrooms. These stories highlight how MongoDB’s platform and resources are revolutionizing education and preparing tech professionals.
The MongoDB for Educators program offers free resources and technology for creating interactive learning environments that connect theory and practice. Educators gain access to MongoDB Atlas credits, curriculum, certifications, and a global community.

Unlocking potential: Integrating MongoDB to enhance learning in the classroom

Professor Margaret Menzin is a dedicated educator at Simmons University, where she was instrumental in developing one of the first undergraduate data science majors in the United States. With a keen eye on industry trends, she revamped her database course to include NoSQL technologies like MongoDB, recognizing their growing importance in the professional world. Her approach blends practical skills with theoretical understanding, ensuring her students are well prepared for real-world challenges.
Professor Menzin also fosters a vibrant student community around MongoDB technology, empowering students to use these skills in their academic projects and future careers. Her MongoDB insights on curriculum and student engagement offer valuable perspectives for educators adapting to the evolving tech landscape, as you’ll see in our interview.
1. Tell us about your educational and professional journey and what initially sparked your interest in databases and MongoDB.
At Simmons, we were one of the first US universities to offer an undergraduate major in data science, so we were very aware of the importance of NoSQL for handling big data. In 2017, I returned to teaching databases after a hiatus of about seven years—and when I looked at the textbooks, they hadn’t changed. But the world sure had. So I checked the Stack Overflow survey of what professional developers were using and found that 25% of them were using MongoDB. With my colleagues’ permission, I revised our course to be about one-third on NoSQL, and I had to develop my own materials. But my students adore using MongoDB.
2. What courses related to databases and MongoDB are you currently teaching?
I teach a one-semester database course that’s required for all students majoring in computer science, data science, and information technology/cybersecurity. I also teach a course in full-stack web development, and students learn how to access MongoDB from Node.js.
3. What motivated you to incorporate MongoDB into your curriculum?
I was motivated by what is happening in the real world, but as an instructor, I find that having students learn something else in addition to relational databases makes the discussions much livelier about atomicity, consistency, isolation, and durability (ACID) transactions and concurrency in relational database management systems (RDBMSs). Now students see where ACID transactions are important and where they’re not. (Yes, I know that MongoDB supports ACID transactions.) Similarly, the design process is different for MongoDB and for entity-relationship design, and that highlights the strengths of each.
Figure 1. Professor Margaret Menzin's students at Simmons University.

Photo of one of Margaret Menzin's class of students.

4. You have successfully built an active student community around MongoDB on your campus. Can you share some insights into how you achieved this and the impact it’s had on students?
First, I tell students to put MongoDB on their curricula vitae because it gives them an edge. Second, students are so enthusiastic about MongoDB that they turn to it when they have to build projects for senior courses. I do require that students install the MongoDB Community Edition on their own computers, and—without any data to back this claim up—I think that makes it more likely that they will turn to it. And they do. This year, a group of four seniors built a complete software system for a nonprofit on our campus, and they chose to use MongoDB. (I was not the supervisor; they chose MongoDB because they liked it and thought it was the best choice.)
5. How do you design your course content to integrate MongoDB in a way that engages students and ensures practical learning experiences?
In my course, I give students a set of comma-separated values (CSVs) for the Northwinds example (a pretty standard project with files for customers, products, orders, line items, etc.), and they denormalize the data. That is, they embed the line-item documents into the orders documents and do some computations, then embed the orders documents into the customers’ documents. They timed various operations with and without indexes. One thing I have learned is to put the exam on MongoDB before the project, so everyone on the team is ready to contribute to the project. I have a file of the approximately 5,000 restaurants in New York City that I use for the exam.
6. How has MongoDB supported you in enhancing your teaching methodologies and upskilling your students?
First, my students make extensive use of the MongoDB documentation. Reading documentation is an important skill for students to learn, and MongoDB’s is excellent. Second, I have gone through all the MongoDB videos for teachers, and I especially use the ones on the design process. For the aggregation pipeline, we use the book Practical MongoDB Aggregations, linked to on your site, and the Mosh Hamedani videos on YouTube. And because I was one of the very early adopters among professors, I’ve had to develop a lot of my own materials, which I’ve shared.
Figure 2. Professor Margaret Menzin's students at Simmons University.

Another photo of some of professor Menzin's students at Simmons University.

7. Could you share a memorable experience or success story of a project from your time teaching MongoDB that stands out to you?
After the first year I taught MongoDB, I asked my colleagues for feedback, and they suggested that I see what other people were doing on the Association for Computing Machinery (ACM) Special Interest Group on Computer Science Education (SIGCSE) LISTSERV. The result was a panel called “NoSQL is No Problem” for SIGCSE 2020. And there was a curated bibliography for various NoSQL platforms.
8. How has your role as a MongoDB educator impacted your professional growth and the growth of the student community at your university?
As a faculty member, I am always trying to see what’s going to be important next and find out how to learn it. Students respond to that attitude. I also lean very heavily on small-group work and team projects in all my courses. Most of my database students are sophomores, and they don’t know each other well yet. So in any small-group work, I say, “Even if it’s your roommate, begin with ‘Hello, my name is…’” and they laugh, but it works. It happens that the database course (occurring fall of the sophomore year) is when we try to build a sense of cohesion among our majors. I also require my students to take out an ACM student membership so I can assign a variety of readings and videos, and that helps them build professional identities. And my students love the fact that this is cutting edge and that they are moving away from textbooks. I’m sure that listing MongoDB among their skills on LinkedIn and elsewhere also helps them find internships.
9. What advice would you give to educators who are considering integrating MongoDB into their courses to ensure a successful and impactful learning experience for students?
Allow about 30% of a first database course for the MongoDB work. It takes me about one and a half to two weeks to get students to install and learn basic MongoDB, and then another week and a half for the project. After that, use MongoDB as a jumping-off point to circle back to topics like forms of consistency, the CAP Theorem, design trade-offs, design decisions for distributed databases, and the choice of a database model. Comparing and contrasting MongoDB with an RDBMS is a very powerful way to summarize many of the key concepts in a database course. Finally, spending the last week on these high-level issues, when all of the students’ other courses are rushing to finish their projects, will make students very grateful.

Apply to the MongoDB for Educators program and explore free resources for educators crafted by MongoDB experts to prepare learners with in-demand database skills and knowledge.

Leader Spotlight: Leading product in a nonprofit organization, with Don Boulia

"Sibel Bagcilar" / 2025-06-23 7 days ago / 未收藏/ LogRocket - Medium/ 发送到 kindle

Don Boulia talks about his transition from working in product management at for-profit organizations to a nonprofit environment.
The post Leader Spotlight: Leading product in a nonprofit organization, with Don Boulia appeared first on LogRocket Blog.

所有的错误我们都知道，然而终究改不掉

"土木坛子" / 2025-06-22 9 days ago / 未收藏/ 土木坛子/ 发送到 kindle

以前读过一部分《明朝那些事儿》，我觉得作者用通俗的语言和生动的方式向我们这些对历史研究不深的人有趣地描绘了明朝 […]

Git Notes：Git 最酷但最不受欢迎的功能

"techug" / 2025-06-23 7 days ago / 未收藏/ 程序师/ 发送到 kindle

Git notes允许你在特殊命名空间中修改旧提交的新信息。它们还能做更多事情。notes 可以存储任何由 Git 跟踪的对象的元数据——任何对象：提交、二进制文件和树。所有这些操作都不会修改对象本身。

没错，没人关心 Linux 上的使用友好性

"techug" / 2025-06-23 7 days ago / 未收藏/ 程序师/ 发送到 kindle

我从未想过我会因为这件事感到如此愤怒，以至于要写一篇标题带有噱头性质的文章。这同时令人沮丧、毫无生产力且令人愤怒。我写这篇文章时完全清楚自己本可以专注于GNOME的无障碍性工作

Android 开发中的三个常见构建错误及解决方案

2025-06-23 7 days ago / 未收藏/ 技术小黑屋/ 发送到 kindle

最近在 Android 项目开发中遇到了几个构建错误，以下是解决方案，供遇到同样问题的开发者参考。

1. META-INF 文件冲突

错误信息

FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:mergeDebugJavaResource'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.MergeJavaResWorkAction
   > 2 files found with path 'META-INF/versions/9/OSGI-INF/MANIFEST.MF' from inputs:

解决方案

在 app/build.gradle 中添加以下配置：

android {
    packagingOptions {
        resources {
            excludes += "META-INF/versions/9/OSGI-INF/MANIFEST.MF"
        }
    }
}

说明

此错误通常由多个依赖包含相同的 META-INF 文件引起，通过 excludes 排除重复文件即可解决。

2. TensorFlow Lite 库冲突

错误信息

Caused by: java.lang.RuntimeException: Duplicate class org.tensorflow.lite.DataType found in
modules jetified-litert-api-1.0.1-runtime (com.google.ai.edge.litert:litert-api:1.0.1) and
jetified-tensorflow-lite-api-2.12.0-runtime (org.tensorflow:tensorflow-lite-api:2.12.0)

解决方案

在 app/build.gradle 中添加依赖替换规则：

configurations.all {
    resolutionStrategy.dependencySubstitution {
        substitute module("org.tensorflow:tensorflow-lite") with module("com.google.ai.edge.litert:litert:1.0.1")
    }
}

说明

Google 将 TensorFlow Lite 迁移到新包名 com.google.ai.edge.litert，若项目同时包含新旧包名，会导致类冲突。通过依赖替换强制使用新包解决。

3. Jetifier 与 BouncyCastle 兼容性问题

错误信息

Caused by: java.lang.RuntimeException: Failed to transform
'/Users/xxxxx/.gradle/caches/modules-2/files-2.1/org.bouncycastle/bcprov-jdk18on/1.78/619aafb92dc0b4c6c
c4cf86c487ca48ee2d67a8e/bcprov-jdk18on-1.78.jar' using Jetifier.
Reason: IllegalArgumentException, message: Unsupported class file major version 65.

解决方案

在项目根目录的 android/gradle.properties 文件中添加：

android.jetifier.ignorelist=bcprov-jdk18on-1.78.jar,bcutil-jdk18on-1.78.jar

说明

BouncyCastle 1.78 版本使用 Java 21 编译（class file major version 65），而 Jetifier 不支持此版本字节码。将相关 jar 包加入 Jetifier 忽略列表可避免转换错误。

总结

以上三个问题是 Android 构建中常见的依赖冲突问题，解决思路包括： – 排除重复文件 – 替换冲突依赖 – 跳过不兼容的处理
遇到类似问题时，仔细分析错误信息，通常能找到相应解决方案。

Decoding The SVG <code>path</code> Element: Curve And Arc Commands

"hello@smashingmagazine.com (Myriam Frisano)" / 2025-06-23 7 days ago / 未收藏/ smashingmagazine/ 发送到 kindle

On her quest to teach you how to code vectors by hand, Myriam Frisano’s second installment of a `path` deep dive explores the most complex aspects of SVG’s most powerful element. She’ll help you understand the underlying rules and function of how curves and arcs are constructed. By the end of it, your toolkit is ready to tackle all types of tasks required to draw with code — even if some of the lines twist and turn.

Experiences on CSSCamp and JSCamp 2019