Commit History

29 days ago

  1. Physics: chapters 1, 2, energy and waves; trailing-zero s.f. marking

    Verified signature
    08d06d6

  1. Economics: basic economic problem; markets, demand and supply

    Verified signature
    19b3b06

  1. Spread correct answers evenly across A-D; update letter references

    Verified signature
    0c9eba9
  2. Biology: five more chapters (classification, organisation, movement in and out of cells, biological molecules, human nutrition); exact-precision marking

    Verified signature
    5892695
  3. Minor content fixes; Cambridge-style multi-select marking; tighter numeric tolerances and precision rules

    Verified signature
    274987a
  4. Content fixes from independent review (4 critical, 9 major); accept correctly rounded numeric answers

    Verified signature
    6c92e17
  5. Topics: chapter pages with Learn / Quiz / Ask per topic, 42 short quizzes, planned tutor sessions with a step tracker, fix-my-mistakes, $5 daily cap

    Verified signature
    d6a9f46

  1. Deploy StepWise Self-Checks

    Verified signature
    0bf33e2