WeBWork Problem Authoring and Development

Question 1

What programming language is WeBWork's PG (Problem Generator) language based on?

Accepted Answer

Perl

Answer

PG is built on top of Perl, using Perl syntax and structures to define problem variables, computations, and answer evaluation.

Question 2

What is the primary purpose of using random functions like `random()` in WeBWork PG problems?

Accepted Answer

To create different numerical versions of the problem for each student

Answer

Random functions create different numerical values each time a problem is generated, ensuring each student receives a unique version of the problem.

Question 3

Which WeBWork macro library is commonly loaded to enable advanced mathematical object-based answer checking?

Accepted Answer

MathObjects.pl

Answer

MathObjects.pl provides a framework for mathematical objects and answer checkers that correctly handle various types like numbers, formulas, and intervals.

Question 4

In PGML (PG Markup Language), how do you render an inline mathematical expression using LaTeX formatting?

Accepted Answer

Enclosing LaTeX in [` ... `] (backtick brackets)

Answer

In PGML, mathematical expressions are rendered by enclosing LaTeX-formatted math inside [` ... `] backtick brackets.

Question 5

What does the statement `$ans = Real(5)` accomplish in a WeBWork PG problem?

Accepted Answer

Creates a MathObject representing the real number 5 for answer checking

Answer

Real(5) creates a MathObject of type Real, which supports proper mathematical answer checking including tolerance-based comparisons.

WeBWork Practice Test

WeBWork Practice Test

WeBWork Problem Authoring and Development