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Grade 2 · unit review

Review: Making Things, Trading and Choosing

Explain inputs, exchange and simple trade-offs.

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Bring the unit skills together

Use these 4 new cases to check your reasoning. Choices are temporary and are not saved to an account, sent to staff or recorded as school grades. Download your current review choices before leaving or reloading.

Unit review questions
1. Use the notes and this card. A workshop uses a drill press. Which choice best fits?
Need a hint?
  • Look for material from nature, a person’s work, a tool or machine, or the finished product.
  • Find the note for Capital good. Check which words in this card match it.
2. Use the notes and this card. Two fictional makers trade agreed products. Which choice best fits?
Need a hint?
  • Look for a worker’s main task, reliance on another worker, a trade or a missing supply.
  • Find the note for Exchange. Check which words in this card match it.
3. Use the notes and this card. Fictional budget $12; items cost $7 and $5. Which choice best fits?
Need a hint?
  • Add the selected costs. Compare the total with the budget. If asked about money left, subtract spending from the budget.
  • Find the note for Exactly uses the limit. Check which words in this card match it.
4. Use the notes and this card. Fictional ranking: walk, swim, cycle; cycling is third. Which choice best fits?
Need a hint?
  • Find the activity chosen and the next-best choice in the stated order. Keep them separate from a lower choice and the limit.
  • Find the note for Lower-ranked alternative. Check which words in this card match it.

The download contains your current choices and any checked feedback. Keep the separate transfer-task work in your own document; downloading its instructions does not mark it complete.

Use the skills in a new task

Make four small boxes for Making Things, Trading and Choosing, one for each lesson: Resources in Production; Specialization and Interdependence; Choosing with a Fixed Budget; Opportunity Cost Is the Next-Best Choice. In each box, choose one supplied card and explain its match using the notes. Compare two of your cards: what makes their matches different? You may draw or tell an adult your answers; the adult can write them for you. Use the lesson cards; you do not need a purchase, interview, personal record or trip. For the adult helping: keep the fictional examples and historical notes distinct; these short cards do not tell every detail about a person or place.

Work on paper or in your own document. Explain the choices you made.

  • Choose one supplied card from each lesson: Resources in Production; Specialization and Interdependence; Choosing with a Fixed Budget; Opportunity Cost Is the Next-Best Choice.
  • Use the notes to name each match and explain its clue.
  • Compare two cards and say or show how their clues differ.
  • Keep the events and details as written; do not make up a quotation or new event.
  • With an adult, name one question the cards do not answer.
Compare with a model response

Resources in Production: The card says: “A fictional workshop uses timber.” That matches Natural resource. Natural resource is a resource from nature used in production. Compare: The card says: “A fictional baker kneads dough.” That matches Human resource. Human resource is people’s work and skills. Specialization and Interdependence: The card says: “A fictional worker mainly repairs bicycles.” That matches Specialization. Specialization is focusing work on a particular task or product. Compare: The card says: “A fictional baker relies on a miller for flour.” That matches Interdependence. Interdependence is relying on others for different needed work or products. Choosing with a Fixed Budget: The selected cost is $6. It is less than the $8 budget. The choice fits with money left: $8 − $6 = $2. Compare: The selected cost is $9. It is greater than the $7 budget. It exceeds the limit by $2: $9 − $7 = $2. Opportunity Cost Is the Next-Best Choice: The card says: “Fictional ranking: read, draw, sing; the learner selects reading.” That matches Chosen option. Chosen option is the activity actually selected. Compare: The card says: “Fictional ranking: read, draw, sing; reading is chosen, so drawing is forgone next-best.” That matches Opportunity cost. Opportunity cost is the next-best available alternative forgone. Adult checking note: This model uses the supplied lesson cards and notes. It does not describe every person, community or place. Answering a new question would need a matching source or a new observation.

A different response can also meet the criteria. Compare the evidence and reasoning, rather than copying the wording.