An IB Study Workspace designed to give you back the control and efficiency you need.

II Control

First, the scatter ends.

Term planners, criteria sheets, whiteboard photos, half-finished notes: pulled into one place and filed under the subject they belong to.

Notes, planning and chat share the same workspace, so nothing has to be explained twice.

Biology HLSubject workspace
Notes Topics Chats Study Studio Resource Bank
term_planner.png Planner
criteria_sheet.pdf Rubric
enzyme_notes.md Notes
ia_draft_v3.docx Draft
whiteboard_photo.jpg Photo

Five files. One subject. Nothing left in a downloads folder.

III Efficiency

The same work, fewer moves.

Ask a question, file the answer, mark a draft, plan the week, revise what slipped, sit a mock. Each step hands to the next, so nothing is retyped, re-uploaded or re-explained.

Ask
ChatsAsk anything about your studies…
Organise
NotesSaved to Chemistry HL · Notes
Mark
AssessmentsEvaluation 4 / 6
Plan
CalendarThu · Study task · IA rewrite
Revise
Study StudioMissed concepts · 12 cards
Sit
Mock ExamsBiology Mock 40 marks

One thread, six surfaces. The workspace carries the context between them.

Assessments · Chemistry IAMarked against your rubric
6Overall
Marked against your Chemistry HL rubric · 3 criteria

Strong knowledge and analysis; evaluation is what's holding the grade back.

High confidence
Knowledge clear command terms7 / 8
Analysis data used as evidence5 / 6
Evaluation uncertainty needs weight4 / 6
Raise your mark fastest: weigh each uncertainty by its effect on the final value, then rewrite the conclusion.
Practice · Cell respirationFirst-try recall
72%
Review scheduledThursday · 4:00 pm
IV Confidence

You know where you stand.

Work is marked against the rubric it will actually meet, banded by criteria with a ranked priority list.

Practice keeps score quietly, and a weak session becomes a scheduled review. Progress turns into the next action on the calendar.

V Proof

This is the workspace.

Six surfaces, one system: the same screen you study from.

Chemistry HL · NotesWriting your notes…
EnergeticsGenerating…
Reaction kineticsTopic 6
Organic reaction pathwaysTopic 10
Equilibrium · quick sheetLast week

Energetics

Catalysis & activation energy

A catalyst offers an alternative reaction pathway with a lower activation energy. Both routes reach the same products, so the enthalpy change ΔH is unchanged.

high Eₐ low Eₐ Reactants Uncatalysed Catalysed Products
ImportantA catalyst changes the rate, never the yield or the enthalpy change.

Because more colliding molecules now exceed the activation energy, the rate of successful collisions

Chats · Study planning
Study planningThis week
IA evaluation follow-upChemistry HL
Paper 1 timingMathematics AA HL
Set me up for my Chemistry IA this week.
Here's your week, plus a summary sheet pulled from your Energetics note.
This week 2 events
Chemistry IA
Thu · 14:00 · Chemistry HL
in 3d
Energetics review
Tomorrow · 16:00 · study task
Tomorrow
Energetics: exam summary
Document · 640 words
Open Download
Calendar · Week
Chemistry IA due in 9 days English IO in 16 days
Mon8:45 · Maths AA HLDeck · Cell respiration
Tue10:30 · Chemistry HLStudy task · IA rewrite
Wed13:10 · English A
ThuReview · Energeticsfrom practice8:45 · Maths AA HL
FriIA rewrite dueself-set deadline
Study Studio · Question Generator
Draw from 3 sources · Mixed
Explain 3 marks Medium

Explain how a catalyst increases the rate of a reaction without being consumed, in terms of activation energy.

Your answerA catalyst provides an alternative pathway with a lower activation energy, so more molecules have enough energy to react on collision…
2/3
Strong
What earned marks
Linked the catalyst to a lower activation energy.
Used the idea of an alternative reaction pathway.
How to gain more
Add that the enthalpy change and final yield are unchanged.
Assessments · Chemistry IA Upload · Rubric · Mark
6Overall
Marked against your Chemistry HL rubric · 4 criteria

Placed criterion by criterion, with a verbatim quote behind each band.

High confidence
Knowledge clear command terms7 / 8
Analysis data used as evidence5 / 6
Evaluation uncertainty needs weight4 / 6
Communication structure holds4 / 4
Raise your mark fastest
i. Rank the two uncertainties by effect on the final value.
ii. Rewrite the conclusion around the dominant one.
iii. Re-mark, the band history stays on this page.
Mock Exams · Biology Mock Paper Aim Grade: 6 · 60 min · 40 marks
59:47 Live sitting
Section A · Short answer
1.State[2 marks]

State the role of ATP in active transport across a cell membrane.

2.Explain[4 marks]

Explain how the structure of the mitochondrion is adapted to aerobic respiration.

3.Calculate[3 marks]

Calculate the net yield of ATP from one molecule of glucose in aerobic respiration.

70%score
Practice estimate 28 / 40 marks · raw score, not an IB grade
Question 12 / 2
Question 23 / 4
Question 31 / 3

Begin with what you already have.

A draft, a timetable screenshot, a folder of notes: that is enough. Lumen takes it from there.

Free to start. Built for the Diploma.