Like those wrongheaded people who say "a myriad of".

Just because most of them are dead it doesn't mean you should be mean to them! I'm pretty sure that the preceding sentence parses--it might take more than one try, is all.

Throughout most of its history in English myriad was used as a noun, as in a myriad of men. In the 19th century it began to be used in poetry as an adjective, as in myriad men. Both usages in English are acceptable, as in Samuel Taylor Coleridge's “Myriad myriads of lives.” This poetic, adjectival use became so well entrenched generally that many people came to consider it as the only correct use. In fact, both uses in English are parallel with those of the original ancient Greek. The Greek word mūrias, from which myriad derives, could be used as either a noun or an adjective, but the noun mūrias was used in general prose and in mathematics while the adjective mūrias was used only in poetry.

Go read those 10 emails! They are interesting!

One might even say a myriad of interesting emails awaits you!

ETA: Or is it await? Hah!

I wouldn't replace "variety" with "number", because for (what I assume is) the target audience, having different kinds of exercises is very different from having 15 only slightly different vocabulary matching drills, and it's a Very Big Deal in choosing (and therefore selling) materials.

However, I would switch the sentence around: Each (reading/text/chapter/whatev) is accompanied by a variety of activities to allow students to work with the new vocabulary.

Or is it await?

NoooooooooooooO!

That's it. I have to get back to my myriad myriads of emails.

Did someone already post the Britney news that she has to give up her kids by Wednesday noon??

What!?! To whom does she have to give up her kids, the state or K-fed?

To K Fed, she also has to spend 8 hours a week with a parenting coach who will observe her interactions with her kids.

I have a horrible feeling that even though I told all the right people,the fact the server is going down tomorrow is going to come as a shock and there are going to be tears and recriminations and all that.

So I sent out a reminder.

OK. I did two actual tasks, had one unexpected meeting, and dealt with some other miscellanous items. I think that's just going to have to be good enough.

I also learned that the "laptop" sitting on my desk is 8.5 lbs. There's a potential that I could take a lighter computer with me on my trip, but it wouldn't have my stuff on it. What to do?