Explore the evidence
2 of 88 decisions · clear everything
Survives the gold standardIndependent, durable, rigorousThe debunked shelfCheap winsFor parents at homeFamous numbers, deflatedWhere we admit ignoranceThe terrain
domain
- math6
- reading6
- writing6
- early childhood5
- assessment3
- debunked3
- health3
- homeschool3
- practice3
- foreign language2
- grouping2
- instruction style2
- motor skills2
- music2
- arts1
- class size1
- curriculum1
- deliberate practice1
- feedback1
- homework1
- mastery1
- physical development1
- school structure1
- sport1
- talent1
- teachers1
- time1
- transfer1
- tutoring1
verdict
confidence
layer
Your situation · from the applicability layer — absence means “not yet assessed,” never “doesn’t apply”
who's delivering
group / setting
outcome class
Explicit form-focused teaching beats pure exposure, so the archive's negative verdict on L1 grammar does NOT transfer — but the effects are measured on the taught forms, immediately, mostly on adults.
mixedconf: mediumgc: lowComprehensible input or explicit grammar teaching — which builds a second language? · foreign-language · ages 4–18
Attainment falls steadily with age of first exposure, but the sharp critical period is contested and an earlier classroom start buys nothing durable: start young for immersion, not for two lessons a week.
mixedconf: mediumgc: medium13/1424/48
Is there a critical period for learning a second language, and when should a child start? · foreign-language · ages 4–18
The URL is the state — any view you build here is a permalink you can hand to someone mid-argument.