Challenge: Closure signs C: who, what and which number is barred
Students often learn C17 through C21 as one block of 'number-on-sign signs' and expect C22 to continue that pattern with yet another dimension. The CBR exam designer counts precisely on that assumption: C22 is the exception in the sequence, and whoever blindly extends the pattern also misses why C6 contains a detail that flips its meaning.
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- The model: Closure signs C: who, what and which number is barred
- Core: Closure signs C: who, what and which number is barred
- Why it matters: Closure signs C: who, what and which number is barred
- Active recall: Closure signs C: who, what and which number is barred
- Teach back: Closure signs C: who, what and which number is barred
- Memory hook: Closure signs C: who, what and which number is barred