The Evidence on Teaching

Explore the evidence

8 of 88 decisions · clear everything

Survives the gold standardIndependent, durable, rigorousThe debunked shelfCheap winsFor parents at homeFamous numbers, deflatedWhere we admit ignoranceThe terrain
evidencealldrop DA–BA only
evaluatoranyno dev-ledindependent
durabilityanyfollow-up≥1yr≥2yr
what are these? →
sortconfidencerobustfragileA–Z
domain
verdict
confidence
layer
survival prior
Your situation · from the applicability layer — absence means “not yet assessed,” never “doesn’t apply”
who's delivering
group / setting
cost
outcome class

Neither acceleration mandates nor delay mandates work — readiness-matched placement does. Push everyone and the median falls; hold everyone back and the top falls.

mixedconf: highgc: low
9/936/48connected:Acceleration and gifted programsSchool starting age, relative age,

Algebra timing — acceleration mandates, delay mandates, and readiness-based placement · math · ages 11–18

Grit is conscientiousness renamed and adds 0.4% to grade prediction; self-control genuinely predicts life outcomes but is 60% heritable with zero shared environment, and training moves ratings, not lives.

mixedconf: highgc: medium
20/2036/48connected:Should a school buy a social and eDoes teaching a growth mindset raiHow should a school run its classr

Are self-control and grit teachable levers on achievement? · character · ages 4–18

Growth-mindset interventions change beliefs almost everywhere and change achievement almost nowhere: the two independent national-scale trials measured standardized tests and found exactly zero.

mixedconf: highgc: low
18/1831/48connected:FadeoutSystematic/explicit phonics vs whoTalent and trainabilityAre self-control and grit teachabl

Does teaching a growth mindset raise achievement? · character · ages 4–18

The textbook matters at the bottom, not the top: avoid the demonstrated losers; mainstream choices now differ by ~0.02 SD.

mixedconf: highgc: low
11/1124/48connected:Background knowledge and vocabularSchool spending, charters, and wha

Math curriculum choice — how much does the textbook matter? · math · ages 5–14

SEL programmes move the ratings they are evaluated on far more than the attainment they are sold on: the famous +0.27 is now 0.10, and no large independent trial has reproduced it on an externally marked test.

mixedconf: highgc: low
19/1948/48connected:Are self-control and grit teachablHow should a school run its classr

Should a school buy a social and emotional learning programme? · character · ages 4–18

Sort by what the software replaces: adaptive drill inside the school day buys +0.05-0.20 SD; a device, a connection or the teacher buys zero to negative; LLM tutors have no usable evidence at all.

mixedconf: mediumgc: low
53/5339/48connected:Placement and mastery diagnosisMastery learning (teach → test → rTutoringClass-size reduction

Does educational technology raise learning — CAI, adaptive software, devices, screens, and AI tutors? · edtech · ages 5–18 · structure

Near-zero in primary and almost entirely correlational in secondary. The causal base is three small trials; what the homework IS beats how much of it there is.

mixedconf: mediumgc: medium
16/1629/48

Homework — effects by age and by dosage · homework · ages 5–18 · structure

Classroom order is causally worth a great deal — one disruptive peer costs classmates 3% of adult earnings — yet no branded behaviour programme reliably delivers it and exclusion makes things worse.

mixedconf: mediumgc: low
25/2536/48connected:Talent and trainabilityCan executive function be trained,Should a school buy a social and eAre self-control and grit teachabl

How should a school run its classrooms and its discipline system? · behavior · ages 4–18 · structure

The URL is the state — any view you build here is a permalink you can hand to someone mid-argument.