Problem Techniques
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Contents
Index of Problem Coding Techniques
This index links to problem code snippets that quickly show how to accomplish each effect. Each has limited explanation that assumes a basic understanding of how PG files are written. If you want more details, please see the MathObjects documentation, POD documentation, PG macro files, and PG library files.
- MathObjects documentation Written by Davide Cervone
- POD documentation (POD - Plain Old Documentation)
- PG macro files Source code for pg/macros files.
- PG library files Source code for pg/lib files.
Topics A-B
- Accuracy Required for Numerical Answers
- Adaptive Parameters in Answers
- Adding New Functions to the Context
- Adding Labels, Lines and Points to Dynamic Graphs
- Algebraic Fractions in Student Answers
- Aligned Answer Blanks
- Allowing Strings (Text) in Student Answers
- Answer Blank in the Exponent
- Answer Format Help
- Answer Hints
- Answer is a Solution to an Equation
- Any Answer Marked Correct
- Antiderivatives and Indefinite Integrals
- Applet Example: Flash
- Applet Example: GeoGebra
- Applet Example: Embedding Sage
- Applet Example: Draggable Statements
- Arrows in Dynamic Graphs
- AskSage subroutine for using Sage
Topics C-D
- Comments (for Instructors) Visible in the Problem Library
- Composition of Functions as Correct Answer
- Compound (Multi-part, sequential) Problems (see also Scaffold)
- Constants in Problems
- Constant Differences (Additive) Between Student and Correct Answers
- Constant Differences Between Student and Correct Answers
- Custom Answer Checkers
- Custom Error Messages
- Draggable Statements
- Difference Quotients as Correct Answers
- Differentiating Formulas
- Digits TolType
- Disabling Functions and Operators in Student Answers
- Domain of Function Evaluation
Topics E-F
- Equation Answer Evaluation (Implicit)
- Equations Defining Functions (Not Implicit)
-
eval()Versussubstitute() - Error Message Customization
- Extracting Coordinates of a Point
- Finding the norm of a Vector
- Factoring and Expanding Polynomials
- Flash Applets (Deprecated. Browsers have stopped supporting Flash.)
- Flash Applet Point and Graph Example (Deprecated. Browsers have stopped supporting Flash.)
- Formatting Correct Answers: Equations
- Formatting Correct Answers: Numbers and Formulas
- Formatting: Decimals
- Formatting Fractions as Student Answers
- Formula Answer Evaluation; Limits for Evaluation
- Formula Answer Evaluation; Test Points
- Formulas with Units, as Answers
- Formulas with Variables Other than x
- Fractions (Algebraic) as Student Answers
- Functions Added to the Context
- Function Answers Up To Additive Constants
- Function Composition as Correct Answer
Topics G-H
- Graphic Images, Dynamically Generated
- Graphic Images, Dynamic, with Labels, Lines and Points
- Graphic Images, Dynamic, with Filled Regions
- Graphic Images, with Parametric Functions
- Graphic Images, Put Into Tables
- Graphic Images, Static
- Graphic Image, TikZ Images
- Graphing in 2D with Contour Plots
- Graphing in 2D with Contour Plots that Have a Color Gradient
- Graphing in 2D with Slope Fields
- Graphing in 2D with Vector Fields
- Graphing in 3D with Cylindrical Coordinates
- Graphing in 3D with Rectangular Coordinates
- Graphing in 3D with Parametric Curves
- Graphing in 3D with Parametric Surfaces (e.g., Spherical Coordinates)
- Graphing in 3D with Vector Fields
- Graph Tool, a way for students to input graphs as answers
- Hints in Problems
- HTML Links in Problems
Topics I-J
Topics K-L
- Knowls
- Labels on Dynamically Generated Graphs
- Limits over which Formulas are Evaluated
- Lines in Dynamically Generated Graphs
- Linked Answer Blanks
- Linking Successive Problems
- Links to Other Web Pages
- Lists as Answers
- Logarithms
Topics M-N
- Matching Problems
- Matching Problems That Have Static Graphic Images
- Matching Problems That Have Dynamic Graphic Images
- Month, Day or Year as a problem variable
- Multiple Choice Problems
- Multiple Choice Problems with Graphic Images (see example 1)
- Multiple Select Problems (Select All That Apply or Checkbox Multiple Choice)
- MultiAnswer, Self Referential Problems
- Multi-Part, Sequential Problems
- Named Answer Rules
- Named (Numerical) Constants in Problems
- Numbers with Units, as Answers
- Numerical Answer Evaluation Tolerance
- Numerical Constants in Problems
- Numerical Tolerance in Problems
Topics O-P
- Panic Button optional answer hints with penalty.
- Parameters (Adaptive) in Answers
- Parametric Equations as Answers
- Parametric Lines as Answers
- Periodic Answers
- Planes or Lines Defined Implicitly
- Plotting Parametric Equations
- Plotting Lines and Points on Dynamically Generated Graphs
- Points in Dynamically Generated Graphs
- Points in Student Answers
- Pop-up Lists
- Pop-up Lists For Many Questions With Common Answers
Topics Q-R
- Radio Buttons and Multiple Choice Problems
- Recursively Defined Functions
- Re-randomize Problem allow student to choose a different version. Also see Show Me Another.
- Restricting Allowed Functions in Student Answers
- Restricting Allowed Operators in Student Answers
- Restricting Student Answer Formats
Topics S-T
- Scaffolded (or "sequential", or "compound") problems. Reveal parts consecutively.
- Slope Field Graphs
- Solutions for Students
- Static Graphic Images
- Step Functions in Answers
- Strings in Student Answers
- Tables in Problem Text
- Tables of Graphs
- Test Points for Formula Evaluation
- Text in Student Answers
- Textbook Specific Messages
- Tolerance in Numerical Answers
- Trig Functions in Degrees
