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What's the difference between lists and sets in Python?
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Lists are ordered and can contain duplicate values. Sets are unordered and cannot contain duplicate values.
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When might a switch statement be preferred over an if..else statement?
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...which can include low-stakes coding practice.

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Write a function to multiply two input parameters, a and b.
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def product_of_two(a, b):  # Your code here!

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What does MVVM stand for in iOS development?
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Object-Oriented Programming in Java

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Emily Carroll
“Every single week, students would spontaneously, unsolicited post in my discord channel ‘This OpenClass thing is great’, ‘I love this OpenClass thing’, ‘Can we have more OpenClass assignments?’ and if I haven’t prepared one for a week, there would be messages popping up after lecture, ‘Is there OpenClass this week?’, ‘When is it going to be available?’. My students had a great reaction to it.”
Emily Carroll
Assistant Professor - University of Arizona
Nick Suwyn
“Looking back two years ago when we started working with OpenClass, I couldn’t be happier that we went with OpenClass. The improvements that it led to our program and our student success rate is incredible.”
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CEO - Promineo Tech
Gus Hahn-Powell
“As educators, comprehensive review is something we all want to provide, but it can be difficult to deliver. OpenClass makes it easy — far easier than any other tool I’ve used. Feedback from undergraduates and graduates was overwhelmingly positive. Unsolicited, students repeatedly reached out to let us know how useful they found the review and mastery activities.”
Gus Hahn-Powell
Assistant Professor - University of Arizona
Dianne Patterson
“I was very impressed by OpenClass. I was impressed by the aesthetic of the interface—it was very beautiful to look at. I was impressed with the statistics that I got out of it afterwards—I could quickly look and see who'd finished, when they'd finished, and drill down and see details of what students had done—that was fantastic. I think it's a fantastic tool, and I think it fills in a niche that nothing else we have fills in.”
Dianne Patterson
Research Scientist - University of Arizona
Diheng Zhang
“The interface is attractive, it's user-friendly, and the instruction is very, very clear. I basically just spent like half an hour or an hour trying to learn how to build a class and I was able to do it. One very interesting thing I noticed is that not too many students noticed that they leave D2L, so I think that speaks to how well OpenClass is integrated to the D2L system.”
Diheng Zhang
Graduate Researcher - University of Arizona

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