Margin and Cash Flow

Overview

Students build on earlier entrepreneurial vocabulary by analyzing profit margins and cash flow using hypothetical mini-business scenarios. They will organize ideas in writing and use linking words to explain how each figure affects business decisions.

Learning intentions

• Students will be able to define and calculate profit margin using given revenue and expenses.
• Students will be able to identify the difference between profit (accounting outcome) and cash flow (timing of cash in/out).
• Students will be able to organize a short explanation with clear sections and a logical flow.
• Students will be able to connect claims to reasons and evidence using linking words and phrases.

Success criteria

• I can compute profit margin from provided numbers and interpret what it means.
• I can label whether a scenario shows positive or negative cash flow and explain why.
• I can write an organized explanation with headings and include key calculations as evidence.
• I can use linking words to show relationships (because, therefore, however, for example).

Curriculum links

• Writing: Informative/Explanatory texts that examine complex ideas through effective selection and organization.
• Writing: Introduce a topic and organize ideas with formatting (headings) and graphics (tables/figures) when useful.
• Writing: Use words, phrases, and clauses to link major sections and clarify relationships between claim(s), reasons, and evidence.
• Writing: Develop the topic with well-chosen, relevant facts and examples appropriate for the audience’s knowledge.

Lesson structure (50 minutes)

1. 0–5 min · Activate prior knowledge. Teacher posts two prompts: “What is profit?” and “What is cash flow?” and quickly charts student responses. Students turn and talk, then offer one statement each to build a class vocabulary bank.

2. 5–12 min · Mini-direct instruction (new thinking). Teacher models two calculations on the board:

• Profit margin = (profit ÷ revenue) × 100
• Cash flow = cash in − cash out (using timing details from a scenario) Students watch, then answer two quick check questions on a handout: one margin calculation and one cash flow classification.

3. 12–22 min · Group scenario analysis. Teacher divides students into 5 groups of 6 and gives each group one scenario card with revenue, costs, and timing (e.g., customers pay in 30 days; bills are due immediately). Students complete a group “Evidence Table” with three columns: Profit numbers, Cash flow numbers, and Decision impact.

4. 22–32 min · Writing planning with connections. Teacher demonstrates a 4-part outline using headings: Claim, Reasons, Evidence (calculations), and Recommendation. Teacher also models linking words that show relationships: because, therefore, however, for example. Students draft a brief writing plan (not full paragraphs yet) using the group table, including at least one “however” statement.

5. 32–44 min · Write an organized explanation. Teacher circulates and uses a checklist: include headings, include calculations, and link claims to reasons and evidence. Students write a 1-page response for their scenario including:

• a claim about profitability and cash risk,
• 2–3 reasons using the numbers,
• evidence by quoting their calculations,
• a recommendation (what the entrepreneur should do next).

6. 44–49 min · Share and refine. Teacher selects two groups to read their claim/reason/evidence sentence aloud; the class gives one “glow” and one “grow” using a sentence frame (“One thing your writing explains clearly is… Another way to strengthen it is…”). Students revise one sentence or linking phrase in their own writing.

7. 49–50 min · Exit ticket. Teacher collects a quick exit slip: “Given revenue $10,000 and profit $2,000, what is profit margin? If bills are due today but customers pay next month, what happens to cash flow?” Students answer independently.

Resources

• Scenario cards (5 versions) with numbers and timing details
• Evidence Table worksheet (Profit, Cash flow, Decision impact)
• Calculation reference strip (profit margin formula and step reminders)
• Writing organizer with headings (Claim/Reasons/Evidence/Recommendation)
• Linking words handout (because, therefore, however, for example)
• Clipboards or notebooks for drafting and final writing
• Exit ticket slips and pencils

Assessment

• Formative checks during mini-direct instruction (margin calculation and cash flow classification answers)
• Group Evidence Table review (teacher verifies correct identification of profit vs cash flow and accuracy of computed values)
• Exit ticket for individual mastery (profit margin calculation and timing-based cash flow reasoning)

Differentiation

• Support: Provide sentence starters for each writing heading (e.g., “My claim is…”, “This matters because…”, “However…”, “For example…”).
• Support: Allow students to use a partially completed Evidence Table template with blanks for missing numbers.
• Extension: Challenge groups to add one additional recommendation that addresses both profitability and cash timing (e.g., renegotiating payment terms, adjusting inventory purchases).
• EAL/SEN: Offer a word bank for business terms and allow oral rehearsal with a partner before writing; provide extra time for copying calculations into the Evidence section.