Learn mathematical units: a new Number with Units question type

We’ve launched a new Number with Units question type in Oppia, which you can use in your Oppia explorations!

Using this question type will enable students to include both SI and non-SI mathematical units with numerical answers. This allows lesson creators to frame questions around physical quantities, or help students gain a better understanding of unit conversions by converting a value given in one unit into a different unit. The question type also includes support for several currency units such as dollars, cents, rupees, paise, etc.

This question type also allows creators to provide learners with appropriate feedback on their answers. For example, for a question whose correct answer is 2 km, Oppia can recognize not only equal answers (such as 2 km) as being correct, but also equivalent answers (such as 2000 m).

Here is a screenshot of what the question type looks like:

Number with Units question type in the learner view

We hope that this question type will help learners learn about units effectively, while providing more flexibility to lesson creators. As always, if you find any bugs or have any feature requests, please feel free to file them in our issue tracker or make a post on the Oppia discussion forum. We look forward to seeing the new explorations that you create with this question type!