We've recently been developing automatically graded randomized virtual
lab activities. These problems include random variables and support feedback for
common student errors (for example, an automatic prompt when answers are
off by orders of magnitude, suggesting that students check to see if
they've converted mL to L for calculations.)
Follow the links below to access the activities. Each time the page loads, you will be
given a new set of parameters. You will have 3 attempts to solve each problem
before you are given the correct answer and asked to reload the problem and try again.
Once you have entered the correct answer and completed the activity,
you may print the page to be handed in to your teacher.
Like all of our efforts, this is a work in progress. If you have
any suggestions for problems to add - or would like to customize one of these problems
for your students - please contact us: