How To Draw Lewis Structures On Smartwork

Smartwork5 is an intuitive html5 uniform online homework organization which accompanies Organic Chemistry Principles and Mechanisms, 2e. Information technology contains 3400 questions, all of which contain hints and formative feedback written past organic chemistry instructors. Nigh 2500 of these questions require students to describe an organic construction and/or write an organic mechanism. The drawing tools are like shooting fish in a barrel to learn and the mechanism writing interface allows students and instructors to encounter the unabridged mechanism at a glance. In this mail service I am going to talk over the procedure of developing a student-friendly ii-D molecule cartoon gradable module. In a future post I will expound upon how those same drawing tools were incorporated into a visually appealing mechanism writing interface and gradable module.

Many early on online chemical science homework systems, including the precursor to Smartwork5, used the multimedia software platform Flash to render and depict 2nd molecules. This meant that students had to apply a browser which supported Flash, and often required students to download and install Adobe's Flash on their personal or campus computers. I know from personal experience how challenging this made the showtime of the semester, as oftentimes students would seek me out with technical bug due to difficulties related to obtaining and using Flash. Therefore, as early as 2012 Due west.W. Norton's product squad began developing an html5 online homework system, with ane goal being elimination of Flash. In 2014 efforts focused on incorporating a html5 uniform drawing platform in part due to announcements that past 2020 Flash would no longer be supported past almost major internet browsers.

Marvin-JS by Chem Axon was adopted as the 2D molecule drawing tool for Smartwork5. Besides beingness Wink-independent Marvin-JS is a chemically intelligent tool used extensively in industrial settings, and it is available to students and instructors outside of Smartwork5 for use in lab reports or other assignments. Check out this link to encounter the wealth of features available within Marvin-JS.

Every bit you tin can see, it contains many features needed for inquiry chemists. However, very few of these tools are needed for chemistry novices – in fact the sheer book of buttons and features can exist very overwhelming to chemistry students. This marked an exciting pedagogy-related challenge: adjusting the available features of Marvin-JS to create a user friendly suite of tools advisable for the novice while robust enough to depict complex structures and mechanisms. Furthermore, the same drawing platform was to be used for both organic chemistry students and full general chemical science students. The selection and design-optimization of the available tools inside the drawing platform was completed by a team of dedicates production developers, coders, user-interface designers, and myself (an experienced chemistry instructor).

Nosotros decided to create an interface within the 2D drawing module where the writer would select from two primary modes; general or organic chemical science. The selection of the fashion would determine the majority of the drawing, display, and grading settings. This would ensure consistency across the Smartwork5 platform and therefore help clarify for students grading parameters and cartoon expectations. However, the majority of the interface and interactions would remain the same between general and organic manner to allow easy transition of students from general chemistry courses to organic chemistry courses. The consistent features are; select, an undo/redo push button, a reset, access to a period tabular array, changing atoms by keyboard actions, toggling through unmarried/double/triple bonds, add/remove charge deportment, add/remove electrons, and easy admission buttons for the "most common" atoms.
gen chem mode

The first choice in the mode conclusion process was to select a simpler suite of tools for full general chemistry students and so for organic students; for case general chemical science students did not need premade organic templates nor the ability to draw long alkyl chains. The selected tools for general chemistry would so be the foundation for organic chemical science. The next option was to establish a default view for each form; organic chemistry structures were to display as line drawings while general chemical science structures were to be full Lewis structures. The concluding footstep was to select which default features should be edited by the author; for example organic chemistry authors are able to toggle on and off alone pair and chiral grading, which will consequence in the lone pair and wedge/dashes icons, respectively, to be added or removed from the display thereby indicating to students grading and drawing requirements.

organic chem mode

In summary, the drawing tool within Smartwork5 is intuitive for students, is Wink-free, and nowadays students with tools as needed. To help students overcome the low learning barrier nosotros created a short assignable tutorial within Smartwork5. Additionally, the Smartwork5 help notes are very detailed and targeted for the two different courses.

Check out the General Chemistry helpnotes here.

Cheque out Organic Chemistry helpnotes here.

Would y'all like to attempt the 2nd drawing tool every bit it displays to students both full general and organic chemical science courses? Yous tin can exercise and so easily by viewing the open up admission demo Smartwork5 demo at the post-obit websites. Simply click on the Smartwork5 tile and follow the prompts.

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