Using the 'Review' Tools in Word

Step 1: Type-up work 
I prefer to get the to work straight onto the computers, but you could have them hand-write it first if that suits you/them better. It's a step I don't find particularly useful. At this stage, you can show them where to find their word count if that's relevant. It was in this case. ​

Step 2: Track Changes
From the tabs at the top, select 'Review', then click 'Track Changes'. 

Step 3: Show Balloons
You can either view changes in balloons (bubbles at the side of the document) or in-line (crossings out and changes within the text). I prefer balloons, as it makes it easier to read the text. To do this, click 'Show Markup', then 'Balloons', then 'Show Revisions in Balloons'.

Step 4: Make the Changes
As you do, you'll see the changes you make appear in balloons down the right-hand side. I recommend enlarging the text size to spread out the balloons and give you a better view of what's been done. ​

Tip: If there are any changes you don't want to see, right click and press 'accept changes' and the bubble will vanish. 

You can click on the drop-down menu to switch between viewing the changes, the original and the final one without the bubbles: ​

​This way, you can print with or without the editing on show. 

So, there you have it. I use this feature of Word for all sorts, including editing. There are other uses, however. Check out this way of magpie-ing sentence structures using the review tool.