1. Quadratic Equations – No Solutions – Shootout!
Students compete (1v1 in pairs or in teams, at their tables or at the front) to
answer questions the quickest.
Students could write on your whiteboard or their own.
Delete too difficult/easy question slides beforehand.
Click anywhere to start the music, then click ‘Go’ to show the question,
then click again to show the answer.
This game has sound!

2. Using the Discriminant
Shootout!
Using the Discriminant

3. Correct Answer = 1pt
Fastest! = 1pt

4. Ready?
Go!

5. How many solutions does this equation have?
𝑥2+5𝑥+1=0
Discriminant = 𝑏2−4𝑎𝑐
𝑏2−4𝑎𝑐 = 21
2 Solutions

6. Ready?
Go!

7. How many solutions does this equation have?
𝑥2+3𝑥+7=0
Discriminant = 𝑏2−4𝑎𝑐
𝑏2−4𝑎𝑐 = −19
0 Solutions

8. Ready?
Go!

9. How many solutions does this equation have?
𝑥2+4𝑥+4=0
Discriminant = 𝑏2−4𝑎𝑐
𝑏2−4𝑎𝑐 = 0
1 Solution

10. Ready?
Go!

11. How many solutions does this equation have?
𝑥2+5𝑥−2=0
𝑏2−4𝑎𝑐 = 33
2 Solutions

12. Ready?
Go!

13. How many solutions does this equation have?
2𝑥2−4𝑥−3=0
𝑏2−4𝑎𝑐 = 40
2 Solutions

14. Ready?
Go!

15. How many solutions does this equation have?
2𝑥2+3𝑥+5=0
𝑏2−4𝑎𝑐 = −31
0 Solutions

16. Ready?
Go!

17. How many solutions does this equation have?
3𝑥2+6𝑥+3=0
𝑏2−4𝑎𝑐 = 0
1 Solution

18. Ready?
Go!

19. How many solutions does this equation have?
2𝑥2+8𝑥+8=0
𝑏2−4𝑎𝑐 = 0
1 Solution

20. Ready?
Go!

21. How many solutions does this equation have?
3𝑥2+3𝑥−2=0
𝑏2−4𝑎𝑐 = 33
2 Solutions

22. Ready?
Go!

23. How many solutions does this equation have?
5𝑥−4=3𝑥2
𝑏2−4𝑎𝑐 = −23
0 Solutions

25. tom@goteachmaths.co.uk Questions? Comments? Suggestions?
…or have you found a mistake!?
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