That's not what most students want from their dictionary though. They want to check the spelling of a word or two. Get in. Get out. Get done.
For some kids, the sheer amount of words on a page is overwhelming. They prefer to look up words on line. I agree. I keep dictionary.com at the ready. The reality is that we don't have enough computers to make this workable for the whole class.
Imagine my delight when I discovered this gem:
Sure it's large print, and I teach young eyes. Young eyes still appreciate ease of reading. Now, if you need a dictionary that is more Oxford Englishy -- this is not for you. If you need a reference for spelling and short definitions without word histories, this could fit the bill. The books are light...no blue toes from dropping a hefty tome on your shoe.
Right now the hardback version is about $9 on Amazon.com and eligible for Super Saver Shipping.