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QR Challenge: Icenhour - Quadratics Treasure Hunt

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. Find the standard form of a quadratic equation.ax^2+bx+c=0
2. ax^2 + bx + c = 0 Put the following equation in standard form: -x^2 – 4 = 4x-x^2 – 4x – 4 = 0
3. -x^2 – 4x – 4 = 0 Substitute y in for 0.y = -x^2 – 4x – 4
4. y = -x^2 – 4x – 4 Make a table of values for x = -5, -4, -3, -2, -1, 0, 1y = -9, -4, -1, 0, -1, -4, -9
5. y = -9, -4, -1, 0, -1, -4, -9 Graph the equation using these coordinates. What is the shape of the graph? “n” shaped
6. “n” shaped How many times does the graph touch the x-axis?1
7. 1 What is the coordinate?(-2,0)
8. (-2, 0) What is this coordinate called?Vertex or x-intercept
9. Vertex or x-intercept What is the value of x at this point?-2
10. -2 What is the equation for the axis of symmetry?x = -2
11. x = -2 What are the values of a, b, and c from the equation in standard form?a = -1, b = -4, c = -4
12. a = -1, b = -4, c = -4 Look up the quadratic formula.x = [-b+-sqrt(b^2-4ac)]/2a
13. x = [-b+-sqrt(b^2-4ac)]/2a Plug the values of a, b, and c into the quadratic formula.The quadratic formula gave me x = -2
14. The quadratic formula gave me x = -2. Find all solutions to x^2 – 2x – 8 = 0 using the quadratic formula.x = -2 and x = 4
15. x = -2 and x = 4 Graph the previous equation in the calculator. Why does this equation have two solutions?The graph crosses the x-axis twice OR There are two x-intercepts.
16. The graph crosses the x-axis twice OR There are two x-intercepts. What would happen if the graph did not cross the x-axis?There would be no real solutions.
17. There would be no real solutions. Find all solutions to x^2 + 4x – 5 = 0.x = -5 and x = 1
18. x = -5 and x = 1 Multiply the solutions together.-5
19. -5 Add 1941 to the previous number.1936
20. 1936 Take the square root of this number.44
21. 44 Find this location in i2Tech!Locker

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Find_the_standard_form_of_a_quadratic_equation.

Question 1 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=ax^2_+_bx_+_c_=_0__________Put_the_following_equation_in_standard_form:__-x^2_–_4_=_4x

Question 2 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=-x^2_–_4x_–_4_=_0__________Substitute_y_in_for_0.

Question 3 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=y_=_-x^2_–_4x_–_4__________Make_a_table_of_values_for_x_=_-5,_-4,_-3,_-2,_-1,_0,_1

Question 4 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=y_=_-9,_-4,_-1,_0,_-1,_-4,_-9__________Graph_the_equation_using_these_coordinates._What_is_the_shape_of_the_graph?

Question 5 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=“n”_shaped__________How_many_times_does_the_graph_touch_the_x-axis?

Question 6 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=1__________What_is_the_coordinate?

Question 7 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=(-2,_0)__________What_is_this_coordinate_called?

Question 8 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Vertex_or_x-intercept__________What_is_the_value_of_x_at_this_point?

Question 9 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=-2__________What_is_the_equation_for_the_axis_of_symmetry?

Question 10 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=x_=_-2__________What_are_the_values_of_a,_b,_and_c_from_the_equation_in_standard_form?

Question 11 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=a_=_-1,_b_=_-4,_c_=_-4__________Look_up_the_quadratic_formula.

Question 12 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=x_=_[-b+-sqrt(b^2-4ac)]/2a__________Plug_the_values_of_a,_b,_and_c_into_the_quadratic_formula.

Question 13 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=The_quadratic_formula_gave_me_x_=_-2.___________Find_all_solutions_to_x^2_–_2x_–_8_=_0_using_the_quadratic_formula.

Question 14 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=x_=_-2_and_x_=_4__________Graph_the_previous_equation_in_the_calculator._Why_does_this_equation_have_two_solutions?

Question 15 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=The_graph_crosses_the_x-axis_twice_OR_There_are_two_x-intercepts.___________What_would_happen_if_the_graph_did_not_cross_the_x-axis?

Question 16 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=There_would_be_no_real_solutions.__________Find_all_solutions_to_x^2_+_4x_–_5_=_0.

Question 17 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=x_=_-5_and_x_=_1__________Multiply_the_solutions_together.

Question 18 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=-5__________Add_1941_to_the_previous_number.

Question 19 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=1936__________Take_the_square_root_of_this_number.

Question 20 (of 21)

 


Icenhour - Quadratics Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=44__________Find_this_location_in_i2Tech!

Question 21 (of 21)