matching usage

##Usage
To Do: Add bullets describing situations Matching is good at addressing.

###Layouts Single or spanned (full width).

###Mobile fall-back If spanned, it will resize to a single width

##Tips

Here are some techniques for getting the most from Matching:

• This works really well when asking a series of ‘True/False’ questions to grab learners’ attention at the start of a course. Provide learners with several statements and see if they know whether they’re true. It’s great for myth busting!

• If a case study contains multiple characters or situations, you can ask about all of them in one question.

• Don’t ask too many questions&mdashwe recommend keeping it to six; otherwise. they’ll be pushed below the fold.

• If asking for statements to be completed, ensure all options run on and are grammatically correct. Those that don’t are often incorrect options, so you’re unintentionally providing clues for the learner.

• Look to match dropdowns with an accompanying graphic to create rich, engaging question sequences.
  Example:
  In the following picture, there are three pairs of Matching and Graphic components. The learner must answer the question in each Matching by referring to the Graphic to its left.

###General tips on using questions:

• Consider using questions early in the page to help increase engagement and get the learner reflecting on the topic at hand. This approach helps to engage any existing knowledge as well as provide the learner to self-assess on their current level of understanding. Questions pitched at the right level and accompanied by well-crafted feedback can help create conditions for learning by making clear any existing gaps in knowledge and reinforce the relevance of the training available on the rest of the page.

• Add questions after key information is presented to allow the learner to self-check and look to use the feedback as an opportunity to provide remedial learning, rather than "Sorry, that’s not right"—instead elaborate on what made the correct options a good choice. Provide the same level of detail for correct feedback as the learner may have just got lucky.

• Use questions at the end of the page to allow the learner to test their understanding of all the subject matter presented. Look to ask a question that requires more than the recall of some of the facts presented on the page, instead try creating a question that requires the learner to demonstrate a working knowledge of the subject matter.