5 Common SAFMEDS Mistakes Students Make (And How to Fix Them)
You've discovered SAFMEDS. You understand the science behind fluency-based learning. You're committed to daily practice. So why isn't your progress matching your effort?
The answer often lies not in lack of dedication, but in subtle mistakes that undermine even the most committed practice. After analyzing hundreds of learning trajectories and reviewing decades of Precision Teaching research, five errors emerge repeatedly—mistakes that seem harmless but dramatically slow progress.
The good news? Each mistake has a straightforward fix. This guide will help you identify which errors might be holding you back and provide actionable solutions to get your learning back on track.
Mistake #1: Practicing Without a Timer
The Problem
"I do SAFMEDS practice, but I don't always use a timer. I know the method—I go through my cards quickly."
This is perhaps the most common mistake, and it fundamentally undermines the entire methodology. SAFMEDS stands for Say All Fast Minute Every Day Shuffled. The timed element isn't optional decoration—it's the engine that drives fluency development.
When students skip the timer, several problems emerge:
The Research
Kubina and Morrison (2000) demonstrated that timed practice produces learning rates 2-4 times faster than untimed practice. The timer creates what sports psychologists call "optimal challenge"—enough pressure to push improvement without causing counterproductive anxiety.
Lindsley's foundational research (1992) showed that the 60-second timing is optimal for maintaining intensity while generating enough responses for meaningful measurement. Shorter timings don't provide enough data; longer timings lead to fatigue and declining effort.
The Fix
Always use a timer. No exceptions.
Set a 60-second timer before every practice session. When it starts, respond to cards as fast as you can while maintaining accuracy. When it stops, count your corrects and errors.
With TAFMEDS, timing is automatic—you can't skip it even if you wanted to. The app ensures every practice session is properly timed, counted, and recorded.
| Without Timer | With Timer |
|---|---|
| Self-paced, naturally slow | Urgency drives speed |
| No measurable progress | Count per minute tracks improvement |
| Builds deliberate responding | Builds automatic responding |
| Feels productive | Actually productive |
Mistake #2: Not Shuffling Between Timings
The Problem
"I shuffle my cards at the beginning of my study session, then do multiple timings. I don't shuffle between each timing because it takes too long."
This shortcuts seems reasonable—you've already randomized the order, right? But skipping inter-timing shuffles creates a hidden problem: positional learning.
Your brain is exceptionally good at detecting patterns. After just one or two passes through a deck, you start learning the sequence rather than the content. You might feel like you're recalling "intermittent reinforcement," but you're actually recalling "the fifth card."
This becomes catastrophically obvious on exams, where questions appear in completely random order with no positional cues.
The Research
Behavioral research has consistently shown that context-dependent memory is surprisingly strong. Godden and Baddeley's classic 1975 study demonstrated that information learned in one context is harder to retrieve in a different context. Card order is a context cue.
Precision Teaching protocols have always emphasized thorough shuffling precisely because practitioners observed students who could fly through cards in a familiar order but struggled when the order changed.
The Fix
Shuffle thoroughly before EVERY timing.
For physical cards:
For digital practice:
| Partial Shuffling | Full Shuffling |
|---|---|
| Learn card sequence | Learn card content |
| Performance drops on exams | Performance transfers to exams |
| False confidence | Genuine fluency |
Mistake #3: Focusing Exclusively on Accuracy
The Problem
"I slow down when I practice to make sure I get every answer right. I don't want to practice errors."
This intuition seems sound—why practice making mistakes? But it reflects a misunderstanding of what fluency training accomplishes.
SAFMEDS isn't about perfect accuracy at slow speeds. It's about building automatic retrieval that works under time pressure. When you prioritize accuracy over speed, you train deliberate, conscious recall. Under stress, that deliberate process breaks down.
The goal isn't 100% accuracy—it's 85%+ accuracy *at speed*. A few errors while building speed are far less costly than perfect accuracy with slow, fragile recall.
The Research
Binder's seminal 1996 paper on behavioral fluency established that speed and accuracy must be trained together. Accuracy-only training produces what he called "fragile" performance—correct under ideal conditions but unreliable under stress, distraction, or extended duration.
The RESA outcomes (Retention, Endurance, Stability, Application) only emerge when fluency aims are met. Studies show that learners who achieved 90% accuracy at 20 responses per minute had significantly worse retention than learners with 85% accuracy at 45 responses per minute (Binder & Watkins, 1990).
The Fix
Practice at your challenge point—fast enough to make some errors, accurate enough to build correct responses.
Target metrics:
If you're at 100% accuracy, you're probably going too slow. Push faster until errors appear, then maintain that speed while errors decrease naturally.
| Accuracy-Focused | Fluency-Focused |
|---|---|
| 100% correct, 15/minute | 88% correct, 40/minute |
| Slow, deliberate retrieval | Fast, automatic retrieval |
| Fails under pressure | Performs under pressure |
| Fragile retention | Durable retention |
Mistake #4: Skipping Days When You "Don't Have Time"
The Problem
"I do SAFMEDS most days, but when things get busy, I skip a day or two. I make up for it with longer sessions when I have more time."
This compensation strategy feels logical—same total practice time, just distributed differently. But memory doesn't work that way.
The "Every Day" in SAFMEDS isn't about accumulating practice minutes. It's about spaced repetition—the most robust finding in memory research. Your brain consolidates learning during sleep, and each day's practice builds on the previous day's consolidation. Skipping days breaks this consolidation chain.
The Research
Cepeda et al.'s 2006 meta-analysis of spacing effects found that distributed practice consistently outperforms massed practice, often by 2-3x. The optimal spacing for most learning is daily practice with sleep between sessions.
Moreover, Ebbinghaus's forgetting curve shows that memory decay is steepest in the first 24-48 hours after learning. Each day you skip allows significant decay that your next session must first recover before making new progress.
The Fix
Commit to daily practice, even when brief.
Minimum daily practice:
The goal is unbroken chains of daily practice. When you maintain consistency:
| Sporadic Practice | Daily Practice |
|---|---|
| 30 minutes twice weekly | 5 minutes daily |
| Recovery + new learning | Pure progress |
| Forgetting curve resets | Continuous building |
| Frustrating plateaus | Steady improvement |
Pro Tip
Mistake #5: Ignoring Your Data
The Problem
"I practice regularly and feel like I'm getting better. I don't really look at my charts—I know my scores are improving."
This trust in subjective feeling over objective data is perhaps the most insidious mistake. Students who ignore their charts often continue ineffective practices for weeks or months, unaware that their "improvement" exists only in their perception.
Feelings are unreliable indicators of learning. The familiarity you feel after repeated exposure doesn't necessarily correspond to retrieval ability. You might feel increasingly confident about terms you still can't recall under pressure.
The Research
Bjork's research on metacognition and learning (2011) has repeatedly demonstrated that learners are poor judges of their own progress. What feels like learning often isn't, and what feels difficult often produces the most durable learning.
The Standard Celeration Chart was developed specifically because subjective assessment fails. Lindsley found that teachers' judgments about student progress correlated poorly with actual measured improvement. Only objective data revealed true learning rates.
The Fix
Review your chart data at least weekly.
What to look for:
With TAFMEDS, your Standard Celeration Chart updates automatically. You can see at a glance whether your practice is working or whether something needs to change.
| Ignoring Data | Using Data |
|---|---|
| Feel confident | Know for certain |
| Continue ineffective practices | Adjust when needed |
| Discover problems at exam | Discover problems in time to fix |
| Hope for the best | Plan for success |
Quick Diagnostic: Which Mistakes Are You Making?
Use this checklist to identify which errors might be undermining your progress:
| Mistake | Warning Sign | Quick Test |
|---|---|---|
| No timer | "I go through cards quickly" | Can you state your count per minute from yesterday? |
| No shuffling | Very consistent scores | Do you ever anticipate the next card? |
| Accuracy-only | Always near 100% | Is your count per minute below 30? |
| Skipping days | Practice "most days" | How many days did you practice last week? |
| Ignoring data | Feel confident | What's your weekly celeration rate? |
If you can't answer the "quick test" questions, you've identified an area for improvement.
The Compound Effect of Getting It Right
Each of these mistakes might seem minor in isolation. The real damage comes from their combination. A student who doesn't time, doesn't shuffle, focuses on accuracy, practices sporadically, and ignores data is doing something that resembles SAFMEDS but produces almost none of its benefits.
Conversely, fixing all five mistakes creates compounding improvement:
| Week | With Mistakes | Without Mistakes |
|---|---|---|
| 1 | 18/min baseline | 18/min baseline |
| 2 | 20/min (+11%) | 28/min (+56%) |
| 4 | 24/min (+33%) | 42/min (+133%) |
| 8 | 30/min (+67%) | 65/min (+261%) |
The student without mistakes achieves fluency in half the time—not because they're smarter or more talented, but because they're not sabotaging their own practice.
Your Action Plan
Ready to eliminate these mistakes? Here's your implementation checklist:
This Week
This Month
Ongoing
Conclusion
The five mistakes covered here—skipping the timer, inadequate shuffling, accuracy obsession, sporadic practice, and data avoidance—share a common thread: they make practice *feel* productive while undermining actual progress.
True SAFMEDS practice:
These aren't arbitrary rules—they're the conditions under which fluency reliably develops. Violate them, and you're doing flashcard review with extra steps. Follow them, and you're building the automatic, durable knowledge that performs under pressure.
Which mistakes have you been making? More importantly, which will you fix starting today?
Start practicing the right way with TAFMEDS and let the system handle timing, shuffling, and tracking automatically.



