Read a historical investor-education guide and mark statement dates, reporting periods and cash-flow categories. Use the precise headings to start; optional original guidance helps check basic arithmetic.
Learning goals and audience
Suitable for: Readers who meet the stated knowledge prerequisites and want the selected scoped reading or local practice.
Learning goals: Label statement dates and reporting periods before combining figures.; Identify the balance-sheet equality and distinguish net income from cash flow.; Locate the source inventory-turnover and P/E demonstrations and state their input scope.
L1 · en · Source practice details on resource page
Next action: Start at Balance Sheets, then Income Statements and Cash Flow Statements. Make a statement-date/reporting-period map, then read the inventory-turnover and P/E demonstrations under Financial Statement Ratios and Calculations.
Official SQLite reference for ordinary NULL comparisons, outer-join filters, DISTINCT, grouping and aggregate denominators.
Learning goals and audience
Suitable for: Readers preparing to explain tabular-data behaviour who meet the stated prerequisites.
Learning goals: State, for a given SQLite predicate, whether a row with a NULL operand is returned, and say why.; Rewrite a filter that uses '= NULL' into one that behaves as intended, using IS NULL or IS.; Predict whether a NOT IN test against a subquery containing NULLs returns any rows, then confirm it by running the query.
L1 · en · Source practice details on resource page
Next action: Open SQL Language Expressions §2 and §8. Explain how ordinary =, IS NULL and NOT IN behave when a value is NULL.
Practise the local Git staging cycle using worked examples and provider challenges.
Learning goals and audience
Suitable for: Readers who meet the stated knowledge prerequisites and want the selected scoped reading or local practice.
Learning goals: Stage related file edits and record one local commit; Distinguish unstaged differences from staged differences; Explain a failed commit attempt when changes are not staged
L2 · en · Source practice details on resource page
Next action: Read Tracking Changes, then attempt Committing Multiple Files and bio Repository at the original source before opening their static solutions. Use a disposable local folder and fictional biography.
Official Treasury pricing reading with distinct bill/coupon/yield scopes. Original scenarios declare settlement,frequency and all cash-flow assumptions.
Learning goals and audience
Suitable for: Readers who meet the stated knowledge prerequisites and want a bounded original explanation of the selected concepts.
Learning goals: Distinguish bill bank-discount360 from coupon/YTM/settlement conventions.; State every cash-flow date,frequency,maturity and settlement assumption before pricing an original coupon scenario.; Explain undated source illustrations and missing duration/convexity scope.
L2 · en · Source practice details on resource page
Next action: Read Bills, then Bonds and Notes. State the scope of the bill bank-discount day basis separately from coupon frequency and discount yield. For original calculations, choose your own inputs and declare settlement, cash-flow dates and complete periods.
Read a dated government method guide, then invent a small hypothetical option comparison or inspect illustrative tables and draft an assumptions memo.
Learning goals and audience
Suitable for: Readers who meet the stated knowledge prerequisites and want the selected scoped reading or local practice.
Learning goals: Separate an objective, option and performance criterion in a short decision brief; Explain what a worst-to-best swing weight represents under explicit hypothetical assumptions; Calculate scores from your own stated hypothetical inputs and test a changed-weight ranking; Write a memo that distinguishes evidence, hypotheses, assumptions and next evidence requests
L2 · en · Source practice details on resource page
Next action: Read the applicability section and Steps 1–5. Invent a small hypothetical comparison with two or three options, state criteria, scores and swing-weight assumptions, then write an evidence/assumptions memo.
Historical author valuation note with explicit NWC exclusions/operating-cash exception; original guidance preserves missing historical units and current-standard limits.
Learning goals and audience
Suitable for: Readers who meet the stated knowledge prerequisites and want a bounded original explanation of the selected concepts.
Learning goals: State cash/security/debt exclusions and operating-required-cash exception.; Explain changes in noncash working capital and their signed cash-flow contribution in the matching period, using explicitly classified original balances.; Distinguish historical M&S missing units from Gap dollar-million example and from current reporting standards.
L2 · en · Source practice details on resource page
Next action: Read the opening valuation definition and required-operating-cash exception. Classify your own opening and closing balances, disclose the chosen definition, and explain the signed cash-flow contribution of the matching-period change in noncash working capital.