Tuesday, July 21, 2026

Pharmaceutical Chemistry 1A (Organic Chemistry 1) - Learning using Logical Flow and Spaced Repitition strategies

Organic Chemistry I — Pharmaceutical Reaction Notebook

Organic Chemistry I — Reaction Notebook

Pharmaceutical Chemistry IA · adaptive learning map · spaced repetition (SM‑2)

Concept Map — Logical Chain

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N-Back Trainer - Working memory / cognitive training

N-Back Trainer

Working memory / cognitive training

N-Back Trainer

On every trial a square lights up on the grid (and, in audio modes, a letter is spoken). Your job: decide whether the current stimulus matches the one shown N steps back in the sequence. Press match as soon as you notice a repeat — scoring below tracks hits, misses, and false alarms in real time.

Setup

20
Spoken letters on
TRIAL 0/20 N = 1 VISUAL

Session results

Run a session to see your hit rate, false alarms, and reaction time here.

Trial-by-trial trace

Hit Miss False alarm Correct rejection
N-back difficulty comes from load, not speed — if 2-back feels easy, raise N before you raise speed.
Runs entirely in your browser · no data leaves this page.

Tuesday, June 23, 2026

Mastering some aspects of Islamic history timeline - Interactive learning

Islamic History SRS Study Portal

Islamic World Historical Timeline

Spaced Repetition System (SM-2 Algorithm)

Era Loading...
Loading question card...
Cards Remaining in Session: 0 Current Card Interval: 0 days
Card Ease Factor (EF): 2.50 Total Repetitions: 0

Stroop Memory Test Challenge