• Submitting Lab Data
• Submitting Calculations
• Submitting Essays
• Uploading Images
• LewisDraw
• Chem21Draw
• Balancing Equations
• Graphing Lab Data
• Non-Linear Relationships
• Linear Relationships
• Other Problem Types
• PostLab Problems
• Student Resources

• Digital Labs
• Testimonials
• Royalties
• Embedding Content
  • Images, Videos, Webpages, Animations
• Interactive Spectra
• Grading Essays / Images
• Web Reports - Auto-grade Lab Results
• Lab Practical / Snow Day / Lab Final
• Cheating

• Scientific Method
• Heat Capacity of a Styrofoam Calorimeter
• Colligative Properties

• Avogadro's Number
• Ordering Procedure Steps
• Graded Flowchart
• Dimensional Analysis Map
• Random Numbers as Sample Data
• Reading A Buret
• Thin-Layer Chromatography
• pH Calculator
• Water Density Calculator
• Water Vapor Pressure Calculator
• Limiting Reagents
• Activity Series
• Phase Diagrams
• Properties of Solutions
• Qualitative Analysis
• Organic Mechanisms
• Refractometer
• Stereochemistry
• Polarimeter

Submitting Lab Calculations

Students can enter a calculated answer as either . . . .

1. a single number which is then graded
2. a group of calculated answers which are then graded. Calculation groups are useful when there are multiple, simple calculations like determining . . . .
   • the volume of titrant delivered for two or three trials
   • the 1/T values for several runs
   • the time in seconds that was recorded in minutes:seconds

The customized lab submission webpages, created by our Content Specialists, become  YOUR Virtual TA  - a "Guide by the Side" for your students. YOUR Virtual TA opens the next entry in the lab report, awards credit (full or partial) on each submission, and gives immediate feedback on incorrect answers.

1. the side navigational panel opens the next step (Next Problem), grades the student's entry (Submit), and indicates the number of Tries, points and tolerance. This panel can be "hidden" to provide more space for lab submission via a phone.
   • the number of Tries is set by the lab coordinator. Unlike online homework where problems are "independent", a lab calculation typically depends on a previous lab calculation. So, to complete all the lab calculations, we have set the maximum number of tries at 3.
   • the points awarded for a correct answer on a particular try is set by the lab coordinator.
   • the tolerance used to grade a calculation is set by the lab coordinator. There are five tolerance options:
     • Absolute: +/- x
     • Percent: +/- x%
     • Significant Figure:
       • SigFig Exact: +/- 0* in the n^th SigFig
       • SigFig: +/- x in the n^th SigFig
     • Decimal Place: +/- 0* in a certain decimal place
     * The rounding used to grade an answer can be specified as "Excel" or "Chemical".
2. a More Information link expands a portion of the side panel to reveal helpful submission information.
3. students receive immediate feedback on their entries. Initially this is in the form of correct / incorrect, but "hints" can be added by the Instructor to point students in the right direction on a calculation.
4. the Virtual TA stops the student at incorrect answers and requires a 2^nd and/or 3^rd submission. Since subsequent calculations depend on previous ones, calculations must be performed in the order YOU prescribe - students can't "skip ahead".
5. calculations missed three times are awarded 0 points. The correct answer is entered on the lab report page AND the formula (containing the student's actual numbers) that was used to calculate the answer is displayed for the student in the side navigational panel.