Every August I used to do the same thing. I’d build a beautiful pacing guide, color coded by unit, and somewhere in the margins I’d pencil in “review day” before each test. Review was a thing that happened after the learning was done, a kind of tidying up before a summative assessment. It took me most of a decade to realize that model was backwards, and that realization is the reason this series of articles exists.
Here’s the shift, in one sentence: retrieval should not be the last thing students do with old content, it should be the first thing they do with new content. Instead of asking “what did we learn last week,” a good retrieval activity asks “how does what we learned last week help us understand what we’re about to learn today.” That’s the whole idea behind the Retrieval Bridge framework, and it’s what this series of articles will walk through, one bridge at a time, all year long.
If you’re new to teaching college level course work in an high school setting, the premise is simple: no matter what kind of schedule you teach, instructional time is limited. AP U.S. History asks teachers to cover roughly five centuries of history while also developing students’ skills in source analysis, argument construction, and timed essay writing. There is no version of that math where you get to slow down and review everything you want to review. So instead of carving out separate time for review, this framework builds review into the daily bell-ringer, using it to connect an event students already know to the event they’re about to learn. Same five minutes you were already going to spend. Twice the instructional value.
Over the course of this year, I’ll be posting a new entry roughly once a week, sometimes twice, timed to match the actual pacing of an APUSH course: colonial foundations in the fall, the Revolution and early republic through October and November, the sectional crisis and Civil War around the winter break, the Gilded Age and Progressive Era through the new year, and the twentieth century sprint from February through the exam in May. Most posts will spotlight a specific Retrieval Bridge, a pairing of a prior-unit anchor event with a new-unit target, complete with a ready-to-use retrieval prompt and a short teacher background section so you can walk into class already knowing why the connection matters. A handful of posts, like this one, will step back and talk about the craft itself: the cognitive science, the classroom management of it, the things I got wrong before I got them right.
I'll be honest about something else, too. This framework didn't emerge fully formed. It evolved through years of trial and error, testing ideas, watching some work beautifully while others fell flat, paying attention to where students struggled, and continually refining the connections until they became meaningful. I'll share that process here too, not just the finished product.
If you’re starting the year with your own pacing guide and your own version of “review day” penciled into the margins, I’d invite you to try something different this week. Pick one unit transition you already have planned, the moment where one topic ends and the next one begins, and ask yourself what your students already know that might illuminate what’s coming. You don’t need all 55 bridges to start. You need one.
Put This Into Practice
If you’d like to use this strategy without building the activity from scratch, I’ve created a classroom-ready resource that applies the approach described above. The Bridge to Mastery: Historical Thinking Skills for AP United States History