Thursday, October 6 - Friday, October 7, 2011

Costs and Supply


Students shall be able to

  1. define and identify fixed, marginal, variable and total costs,

  2. differentiate between a change in fixed costs and marginal costs on economic decision-making,

  3. calculate business profit,

  4. identify diminishing marginal returns, and

  5. identify the profit-maximizing level of output for a firm.



  1. Students shall complete a supply crossword puzzle.


Complete the Supply crossword puzzle.
Watch "Economics USA: The Firm" and complete the corresponding question sheet.



Monitor and adjust, as needed. Check student responses while working. Grade student responses when notebooks are collected.

TEKS involved: 2A, 2C, 2D, 3A, 3B, 4A, 4B, 5A, 7A, 7B, 8B, 9C, 10A, 10B, 11A, 12B, 13C, 14A, 15A, 15B, 16A, 17A, 17C, 20A, 20B, 21A, 22B, 23A, 23B, 23C, 23D, 23F, 23G, 24A, 24B, 24C, 24D, 25A, 26A, 26B, 26C, 26D, 27B