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QR Challenge: Shifts in Supply and Demand

Created using the ClassTools QR Treasure Hunt Generator

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Teacher Notes

A. Prior to the lesson:

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

B. The lesson:

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!

C. TIPS / OTHER IDEAS

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

Questions / Answers (teacher reference)

Question

Answer

1. Demand Scenario 1: Consumers’ Income Drops--This is a Change in Income. Because they will have less money to go around, consumers will buy fewer cars – regardless of price. As a result, the demand curve will shift left to Curve A – representing the decrease in demand.Curve A
2. Demand Scenario 2: Millions of Immigrants Enter the U.S.--This is a Change in the Number of Consumers. Because there will be more consumers to buy (regardless of price concerns), sales of automobiles will increase. As a result, the demand curve will shift right to Curve C – representing the increase in demand.Curve C
3. Demand Scenario 3: Price of Foreign Autos Drop--This is a Change in the Price of a Substitute Good. Consumers will be more likely to buy the foreign cars, reducing the demand for domestic (U.S.-made) automobiles. As a result, the demand curve will shift left to Curve A – representing the decrease in demand.Curve A
4. Demand Scenario 4: Major Cities Add Inexpensive Bus Lines--This is a Change in the Price of a Substitute Good. Consumers will be more likely to ride public transportation, reducing the demand for cars. As a result, the demand curve will shift left to Curve A – representing the decrease in demand.Curve A
5. Demand Scenario 5: Price of U.S. Autos Rises--While people will buy fewer cars as a result of the increase in price, this is movement along the original curve – so there is no shift. The graph of car demand stays at Curve B.Curve B
6. Demand Scenario 6: Price of U.S. Autos Expected to Rise Soon--This a Change in Expectations. Because they anticipate rising prices to come, consumers will choose to buy now. As a result, the demand curve will shift right to Curve C – representing the increase in demand.Curve C
7. Demand Scenario 7: Families Look Forward to Summer Vacations--This a Change in Expectations. Consumers are looking forward to greater utility of cars in the near future. (Road trip!) Therefore, they shop for a new car. As a result, the demand curve for cars shifts right to Curve C – representing the increase in demand.Curve C
8. Demand Scenario 8: U.S. Auto Firms Launch Effective Ad Campaigns--This is a Change in Tastes. The U.S. auto industry is able to convince consumers that they should be American-made, thus increasing sales. As a result, the demand curve shifts right to Curve C – representing the increase in demand.Curve C
9. Supply Scenario 1: Auto Workers’ Union Agrees to Wage Cuts--This is a Change in Input Prices. Because they’ll be able to pay their workers less, this reduces the unit cost to produce cars – so suppliers have an impetus to produce more. As a result, the supply curve will shift to the right to Supply Curve C – representing the increase in supply.Curve C
10. Supply Scenario 2: New Robot Technology Increases Efficiency--This is a Change in Technology (which is also an Input). Because they’ll be able to produce cars more efficiency, this reduces the unit cost to produce cars – so suppliers have an impetus to produce more. As a result, the supply curve will shift to the right to Supply Curve C – representing the increase in supply.Curve C
11. Supply Scenario 3: Price of U.S. Cars Increases--While producers will make more cars as a result of the increase in price, this is movement along the original curve – so there is no shift. The graph of car supply stays at Curve BCurve B
12. Supply Scenario 4: Nationwide Auto Workers Strike Begins--This is a Change in the Number of Producers. The strike will eliminate domestic automakers from car production, so fewer suppliers will be producing – and fewer cars are being produced. As a result, the supply curve will shift to the left to Supply Curve A – representing the decrease in supply.Curve A
13. Supply Scenario 5: Cost of Steel Rises--This is a Change in Input Prices. Because they’ll have to pay more for steel used in production, this increases the unit cost to produce cars – so suppliers choose to produce less. As a result, the supply curve will shift to the left to Supply Curve A – representing the decrease in supply.Curve A
14. Supply Scenario 6: Major Auto Producer Goes Out of Business--This is a Change in the Number of Producers. The plant closing will remove this automaker from car production, so fewer suppliers will be producing – and fewer cars are being produced. As a result, the supply curve will shift to the left to Supply Curve A – representing the decrease in supply.Curve A
15. Supply Scenario 7: Buyers Reject New Car Models--This is movement along the original curve, so there is no shift. This is a shift in demand, not supply. The graph of car supply stays at Curve B.Curve B
16. Supply Scenario 8: Government Gives Car Producers a Subsidy--This is a Change in Input Prices. The government subsidy will decrease the overall cost of operations for the automobile industry, making it more profitable to produce more cars. As a result, the supply curve will shift right to Curve C – representing the increase in supply.Curve C

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Demand_Scenario_1:_Consumers’_Income_Drops--This_is_a_Change_in_Income._Because_they_will_have_less_money_to_go_around,_consumers_will_buy_fewer_cars_–_regardless_of_price._As_a_result,_the_demand_curve_will_shift_left_to_Curve_A_–_representing_the_decrease_in_demand.

Question 1 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Demand_Scenario_2:_Millions_of_Immigrants_Enter_the_U.S.--This_is_a_Change_in_the_Number_of_Consumers._Because_there_will_be_more_consumers_to_buy_(regardless_of_price_concerns),_sales_of_automobiles_will_increase._As_a_result,_the_demand_curve_will_shift_right_to_Curve_C_–_representing_the_increase_in_demand.

Question 2 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Demand_Scenario_3:_Price_of_Foreign_Autos_Drop--This_is_a_Change_in_the_Price_of_a_Substitute_Good._Consumers_will_be_more_likely_to_buy_the_foreign_cars,_reducing_the_demand_for_domestic_(U.S.-made)_automobiles._As_a_result,_the_demand_curve_will_shift_left_to_Curve_A_–_representing_the_decrease_in_demand.

Question 3 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Demand_Scenario_4:_Major_Cities_Add_Inexpensive_Bus_Lines--This_is_a_Change_in_the_Price_of_a_Substitute_Good._Consumers_will_be_more_likely_to_ride_public_transportation,_reducing_the_demand_for_cars._As_a_result,_the_demand_curve_will_shift_left_to_Curve_A_–_representing_the_decrease_in_demand.

Question 4 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Demand_Scenario_5:_Price_of_U.S._Autos_Rises--While_people_will_buy_fewer_cars_as_a_result_of_the_increase_in_price,_this_is_movement_along_the_original_curve_–_so_there_is_no_shift._The_graph_of_car_demand_stays_at_Curve_B.

Question 5 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Demand_Scenario_6:_Price_of_U.S._Autos_Expected_to_Rise_Soon--This_a_Change_in_Expectations._Because_they_anticipate_rising_prices_to_come,_consumers_will_choose_to_buy_now._As_a_result,_the_demand_curve_will_shift_right_to_Curve_C_–_representing_the_increase_in_demand.

Question 6 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Demand_Scenario_7:_Families_Look_Forward_to_Summer_Vacations--This_a_Change_in_Expectations._Consumers_are_looking_forward_to_greater_utility_of_cars_in_the_near_future._(Road_trip!)_Therefore,_they_shop_for_a_new_car._As_a_result,_the_demand_curve_for_cars_shifts_right_to_Curve_C_–_representing_the_increase_in_demand.

Question 7 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Demand_Scenario_8:_U.S._Auto_Firms_Launch_Effective_Ad_Campaigns--This_is_a_Change_in_Tastes._The_U.S._auto_industry_is_able_to_convince_consumers_that_they_should_be_American-made,_thus_increasing_sales._As_a_result,_the_demand_curve_shifts_right_to_Curve_C_–_representing_the_increase_in_demand.

Question 8 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Supply_Scenario_1:_Auto_Workers’_Union_Agrees_to_Wage_Cuts--This_is_a_Change_in_Input_Prices._Because_they’ll_be_able_to_pay_their_workers_less,_this_reduces_the_unit_cost_to_produce_cars_–_so_suppliers_have_an_impetus_to_produce_more._As_a_result,_the_supply_curve_will_shift_to_the_right_to_Supply_Curve_C_–_representing_the_increase_in_supply.

Question 9 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Supply_Scenario_2:_New_Robot_Technology_Increases_Efficiency--This_is_a_Change_in_Technology_(which_is_also_an_Input)._Because_they’ll_be_able_to_produce_cars_more_efficiency,_this_reduces_the_unit_cost_to_produce_cars_–_so_suppliers_have_an_impetus_to_produce_more._As_a_result,_the_supply_curve_will_shift_to_the_right_to_Supply_Curve_C_–_representing_the_increase_in_supply.

Question 10 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Supply_Scenario_3:_Price_of_U.S._Cars_Increases--While_producers_will_make_more_cars_as_a_result_of_the_increase_in_price,_this_is_movement_along_the_original_curve_–_so_there_is_no_shift._The_graph_of_car_supply_stays_at_Curve_B

Question 11 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Supply_Scenario_4:_Nationwide_Auto_Workers_Strike_Begins--This_is_a_Change_in_the_Number_of_Producers._The_strike_will_eliminate_domestic_automakers_from_car_production,_so_fewer_suppliers_will_be_producing_–_and_fewer_cars_are_being_produced._As_a_result,_the_supply_curve_will_shift_to_the_left_to_Supply_Curve_A_–_representing_the_decrease_in_supply.

Question 12 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Supply_Scenario_5:_Cost_of_Steel_Rises--This_is_a_Change_in_Input_Prices._Because_they’ll_have_to_pay_more_for_steel_used_in_production,_this_increases_the_unit_cost_to_produce_cars_–_so_suppliers_choose_to_produce_less._As_a_result,_the_supply_curve_will_shift_to_the_left_to_Supply_Curve_A_–_representing_the_decrease_in_supply.

Question 13 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Supply_Scenario_6:_Major_Auto_Producer_Goes_Out_of_Business--This_is_a_Change_in_the_Number_of_Producers._The_plant_closing_will_remove_this_automaker_from_car_production,_so_fewer_suppliers_will_be_producing_–_and_fewer_cars_are_being_produced._As_a_result,_the_supply_curve_will_shift_to_the_left_to_Supply_Curve_A_–_representing_the_decrease_in_supply.

Question 14 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Supply_Scenario_7:_Buyers_Reject_New_Car_Models--This_is_movement_along_the_original_curve,_so_there_is_no_shift._This_is_a_shift_in_demand,_not_supply._The_graph_of_car_supply_stays_at_Curve_B.

Question 15 (of 16)

 


Shifts in Supply and Demand: QR Challenge

https://www.classtools.net/QR/decode.php?text=Supply_Scenario_8:_Government_Gives_Car_Producers_a_Subsidy--This_is_a_Change_in_Input_Prices._The_government_subsidy_will_decrease_the_overall_cost_of_operations_for_the_automobile_industry,_making_it_more_profitable_to_produce_more_cars._As_a_result,_the_supply_curve_will_shift_right_to_Curve_C_–_representing_the_increase_in_supply.

Question 16 (of 16)