Semantic HTML versions of the four print PDFs. These pages are the primary accessible materials and use the same transaction, accounting-engine, discussion-prompt, and grading authorities as the interactive lesson.
For each transaction, predict the accounts and accounting-equation effect before writing the entry. Revenue and expense accounts remain temporary until net income is calculated. Do not post current-period revenue or expense directly to Retained Earnings.
Assessment: Formative and ungraded. Five concept-check explanations are graded at 2 points each.
The founder invests $60,000 cash in Atlas Analytics in exchange for common stock.
Prediction question: What is the overall effect on the accounting equation?
Journal-entry workspace: identify each account, debit or credit direction, and amount.
Formative explanation: state why the entry preserves the accounting equation.
Atlas Analytics borrows $30,000 cash from a bank and signs a note payable.
Prediction question: Why is the credit recorded to Notes Payable rather than Revenue?
Journal-entry workspace: identify each account, debit or credit direction, and amount.
Formative explanation: state why the entry preserves the accounting equation.
Atlas Analytics buys equipment for $24,000 cash.
Prediction question: What happens to total assets when equipment is purchased for cash?
Journal-entry workspace: identify each account, debit or credit direction, and amount.
Formative explanation: state why the entry preserves the accounting equation.
Atlas Analytics buys $12,000 of inventory from a supplier and will pay later.
Prediction question: Which pair increases when inventory is purchased on account?
Journal-entry workspace: identify each account, debit or credit direction, and amount.
Formative explanation: state why the entry preserves the accounting equation.
Atlas Analytics sells inventory for $10,000 cash. The inventory sold originally cost $6,000.
Prediction question: How much does this transaction add to net income?
Journal-entry workspace: identify each account, debit or credit direction, and amount.
Formative explanation: state why the entry preserves the accounting equation.
Atlas Analytics completes $8,000 of services for a customer who will pay later.
Prediction question: Why is revenue recognized now?
Journal-entry workspace: identify each account, debit or credit direction, and amount.
Formative explanation: state why the entry preserves the accounting equation.
Atlas Analytics collects $5,000 from the customer whose receivable was recorded earlier.
Prediction question: What is the income-statement effect of collecting the receivable?
Journal-entry workspace: identify each account, debit or credit direction, and amount.
Formative explanation: state why the entry preserves the accounting equation.
Atlas Analytics pays $7,000 to the inventory supplier.
Prediction question: Which totals decrease together?
Journal-entry workspace: identify each account, debit or credit direction, and amount.
Formative explanation: state why the entry preserves the accounting equation.
Atlas Analytics pays $4,000 of current-period operating expenses in cash.
Prediction question: How does the expense reach the balance sheet?
Journal-entry workspace: identify each account, debit or credit direction, and amount.
Formative explanation: state why the entry preserves the accounting equation.
Atlas Analytics records $1,000 of depreciation on its equipment.
Prediction question: Which statement best describes the entry?
Journal-entry workspace: identify each account, debit or credit direction, and amount.
Formative explanation: state why the entry preserves the accounting equation.
| Time | Teaching move |
|---|---|
| 0–10 minutes | Accounting equation, normal balances, and Atlas Analytics setup |
| 10–35 minutes | Guided Transactions 1–6 with prediction and explanatory feedback |
| 35–50 minutes | Transactions 7–10; cash versus income recognition |
| 50–60 minutes | Journal entries, temporary accounts, net income, and retained earnings |
| 60–70 minutes | Five misconception-based concept checks |
| 70–75 minutes | Reconstruct and explain the ending balance sheet |
Facilitation protocol: predict → commit → explain → record → reconcile. Ask students to name the account class before choosing debit or credit. Do not double-penalize the same clearly traceable arithmetic carry-forward error.
The founder invests $60,000 cash in Atlas Analytics in exchange for common stock.
| Account | Debit | Credit |
|---|---|---|
| Cash | $60,000 | — |
| Common Stock | — | $60,000 |
Accounting explanation: Cash is an asset, so a debit increases it. Common Stock is contributed equity, so a credit increases it. This is financing from an owner—not revenue earned from a customer.
Misconception: Owner investment increases equity, but it is not revenue and does not enter net income.
Discussion prompt: What earning activity is absent, and why is Common Stock different from Revenue?
Atlas Analytics borrows $30,000 cash from a bank and signs a note payable.
| Account | Debit | Credit |
|---|---|---|
| Cash | $30,000 | — |
| Notes Payable | — | $30,000 |
Accounting explanation: Cash increases with a debit. Notes Payable increases with a credit because the company now owes the bank. Borrowing creates a liability, not revenue, because the cash must be repaid.
Misconception: Receiving cash does not automatically mean earning revenue.
Discussion prompt: What future obligation explains the liability? How would repayment differ from interest expense?
Atlas Analytics buys equipment for $24,000 cash.
| Account | Debit | Credit |
|---|---|---|
| Equipment | $24,000 | — |
| Cash | — | $24,000 |
Accounting explanation: Equipment increases with a debit while Cash decreases with a credit. One asset replaces another, so total assets and the accounting equation totals do not change.
Misconception: Buying a long-lived asset is not an immediate operating expense in this lesson.
Discussion prompt: Why does total assets stay unchanged even though cash falls?
Atlas Analytics buys $12,000 of inventory from a supplier and will pay later.
| Account | Debit | Credit |
|---|---|---|
| Inventory | $12,000 | — |
| Accounts Payable | — | $12,000 |
Accounting explanation: Inventory increases with a debit. Accounts Payable increases with a credit because the supplier has not yet been paid. No cash moves at purchase, and no expense is recognized until inventory is sold.
Misconception: Buying inventory is not COGS until the inventory is sold.
Discussion prompt: At what later event will the inventory cost become an expense?
Atlas Analytics sells inventory for $10,000 cash. The inventory sold originally cost $6,000.
| Account | Debit | Credit |
|---|---|---|
| Cash | $10,000 | — |
| Sales Revenue | — | $10,000 |
| Cost of Goods Sold | $6,000 | — |
| Inventory | — | $6,000 |
Accounting explanation: A sale of inventory has two linked entries: record $10,000 of revenue and remove the $6,000 cost from Inventory into COGS. Gross profit is $4,000, which increases net income and therefore ending retained earnings.
Misconception: The cash collected is not the same as profit; the inventory cost must also be recognized.
Discussion prompt: Why does the sale require two linked accounting effects, and why is cash not profit?
Atlas Analytics completes $8,000 of services for a customer who will pay later.
| Account | Debit | Credit |
|---|---|---|
| Accounts Receivable | $8,000 | — |
| Service Revenue | — | $8,000 |
Accounting explanation: Accounts Receivable increases because the customer owes the company. Service Revenue is recognized when the service is earned, even though cash has not yet been collected.
Misconception: Revenue can be earned before cash is received.
Discussion prompt: What evidence shows the service is earned even though cash is absent?
Atlas Analytics collects $5,000 from the customer whose receivable was recorded earlier.
| Account | Debit | Credit |
|---|---|---|
| Cash | $5,000 | — |
| Accounts Receivable | — | $5,000 |
Accounting explanation: Cash increases and Accounts Receivable decreases. The company is collecting an existing asset; it does not recognize revenue again because the revenue was earned in Transaction 6.
Misconception: Collection changes the form of an asset but does not create a second revenue event.
Discussion prompt: Why would recording revenue again double count the same earning event?
Atlas Analytics pays $7,000 to the inventory supplier.
| Account | Debit | Credit |
|---|---|---|
| Accounts Payable | $7,000 | — |
| Cash | — | $7,000 |
Accounting explanation: Accounts Payable decreases with a debit, and Cash decreases with a credit. Paying a previously recorded liability is not a new expense and does not change net income.
Misconception: Cash payment is not always expense recognition; this payment settles a liability.
Discussion prompt: Why does paying a liability reduce assets and liabilities without changing net income?
Atlas Analytics pays $4,000 of current-period operating expenses in cash.
| Account | Debit | Credit |
|---|---|---|
| Operating Expense | $4,000 | — |
| Cash | — | $4,000 |
Accounting explanation: Operating Expense increases with a debit and Cash decreases with a credit. The expense lowers net income; lower net income lowers ending retained earnings.
Misconception: Expenses reduce equity through net income, not through a direct posting to retained earnings.
Discussion prompt: How does the temporary expense account reach equity without a direct retained-earnings posting?
Atlas Analytics records $1,000 of depreciation on its equipment.
| Account | Debit | Credit |
|---|---|---|
| Depreciation Expense | $1,000 | — |
| Accumulated Depreciation | — | $1,000 |
Accounting explanation: Depreciation Expense increases with a debit. Accumulated Depreciation, a contra-asset with a credit balance, increases and reduces net equipment. No cash is paid when depreciation is recorded.
Misconception: Depreciation allocates cost; it is an expense without a current-period cash payment.
Discussion prompt: Why is Accumulated Depreciation a contra-asset rather than cash or a liability?
All amounts below are derived from the ten journal entries. Revenue and expenses remain temporary accounts until net income is calculated; net income then enters the retained-earnings bridge.
| Line | Amount |
|---|---|
| Sales Revenue | $10,000 |
| Service Revenue | $8,000 |
| Total revenue | $18,000 |
| Cost of Goods Sold | ($6,000) |
| Operating Expense | ($4,000) |
| Depreciation Expense | ($1,000) |
| Net income | $7,000 |
| Line | Amount |
|---|---|
| Opening retained earnings | $0 |
| Add: net income | $7,000 |
| Less: distributions | $0 |
| Ending retained earnings | $7,000 |
| Account | Amount |
|---|---|
| Cash | $70,000 |
| Accounts Receivable | $3,000 |
| Inventory | $6,000 |
| Equipment | $24,000 |
| Less: Accumulated Depreciation | -$1,000 |
| Total assets | $102,000 |
| Account | Amount |
|---|---|
| Liabilities | |
| Accounts Payable | $5,000 |
| Notes Payable | $30,000 |
| Equity | |
| Common Stock | $60,000 |
| Retained Earnings (derived) | $7,000 |
| Total liabilities and equity | $102,000 |
Score the accounting representation, not cosmetic formatting. Do not double-penalize the same clearly traceable arithmetic carry-forward error.
| Criterion | Points | Full-credit standard |
|---|---|---|
| Transaction predictions and account classification | 20 | Two points per transaction: identify the affected account classes and the correct accounting-equation direction before viewing the entry. |
| Journal entries | 40 | Four points per transaction: correct accounts, debit-credit direction, amounts, and a balanced entry. |
| Income statement and retained-earnings bridge | 15 | Temporary accounts are totaled correctly; net income and ending retained earnings are derived from the ledger. |
| Ending balance sheet | 15 | Correct line items and classifications; total assets equal total liabilities and equity using ledger-derived amounts. |
| Concept-check explanations | 10 | Two points for each of five concept checks: select the correct response and explain the governing accounting rule. |
| Total | 100 | Ledger, statements, and explanations describe one internally consistent accounting system. |