Direct & Inverse – Proportion – Penalty Shootout This is a quick game to quiz students. Click/Touch the answer for an animation. Click/Touch ‘Next Kicker’ to bring up the next question. This presentation has sound!

Direct & Inverse Proportion Penalty Shootout! SAVED! GOOOAL!! Direct & Inverse Proportion

SAVED! GOOOAL!! 𝑦 ∝ 𝑥 QUESTION When 𝑥 = 2, 𝑦 = 6 When 𝑥 = 4, 𝑦 = ? 12 14 NEXT KICKER 16

SAVED! GOOOAL!! 𝑦 ∝ 𝑥2 QUESTION When 𝑥 = 2, 𝑦 = 16 When 𝑥 = 3, 𝑦 = ? 30 32 NEXT KICKER 36

SAVED! GOOOAL!! 𝑦 ∝ 𝑥 QUESTION When 𝑥 = 9, 𝑦 = 15 When 𝑥 = 16, 𝑦 = ? 𝑦 ∝ 𝑥 When 𝑥 = 9, 𝑦 = 15 When 𝑥 = 16, 𝑦 = ? GOOOAL!! SAVED! 40 20 NEXT KICKER 30

SAVED! GOOOAL!! 𝑦 ∝ 𝑘 𝑥 QUESTION When 𝑥 = 8, 𝑦 = 0.5 When 𝑥 = 2, 𝑦 = ? 𝑦 ∝ 𝑘 𝑥 When 𝑥 = 8, 𝑦 = 0.5 When 𝑥 = 2, 𝑦 = ? GOOOAL!! SAVED! 2 1 NEXT KICKER 4

SAVED! GOOOAL!! 𝑦 ∝ 𝑥 QUESTION When 𝑥 = 4, 𝑦 = 24 When 𝑥 = 3, 𝑦 = ? 18 14 NEXT KICKER 12

SAVED! GOOOAL!! 𝑦 ∝ 𝑘 𝑥2 QUESTION When 𝑥 = 2, 𝑦 = 2 When 𝑥 = 4, 𝑦 = ? 𝑦 ∝ 𝑘 𝑥2 When 𝑥 = 2, 𝑦 = 2 When 𝑥 = 4, 𝑦 = ? GOOOAL!! SAVED! 0.25 1 NEXT KICKER 0.5

SAVED! GOOOAL!! 𝑦 ∝ 𝑥2 QUESTION When 𝑥 = 4, 𝑦 = 32 When 𝑥 = 5, 𝑦 = ? 20 50 NEXT KICKER 25

SAVED! GOOOAL!! 𝑦 ∝ 𝑘 𝑥 QUESTION When 𝑥 = 5, 𝑦 = 0.4 When 𝑥 = 2, 𝑦 = ? 𝑦 ∝ 𝑘 𝑥 When 𝑥 = 5, 𝑦 = 0.4 When 𝑥 = 2, 𝑦 = ? GOOOAL!! SAVED! 1 4 NEXT KICKER 5

SAVED! GOOOAL!! 𝑦 ∝ 𝑥 QUESTION When 𝑥 = 16, 𝑦 = 12 When 𝑥 = 25, 𝑦 = ? 𝑦 ∝ 𝑥 When 𝑥 = 16, 𝑦 = 12 When 𝑥 = 25, 𝑦 = ? GOOOAL!! SAVED! 10 15 NEXT KICKER 20

SAVED! GOOOAL!! 𝑦 ∝ 𝑘 𝑥 QUESTION When 𝑥 = 16, 𝑦 = 1.5 When 𝑥 = 9, 𝑦 ∝ 𝑘 𝑥 When 𝑥 = 16, 𝑦 = 1.5 When 𝑥 = 9, 𝑦 = ? GOOOAL!! SAVED! 3 6 NEXT KICKER 2

SAVED! GOOOAL!! 𝑦 ∝ 𝑘 𝑥2 QUESTION When 𝑥 = 3, 𝑦 = 2 When 𝑥 = 1, 𝑦 = ? 𝑦 ∝ 𝑘 𝑥2 When 𝑥 = 3, 𝑦 = 2 When 𝑥 = 1, 𝑦 = ? GOOOAL!! SAVED! 18 8 NEXT KICKER 12

SAVED! GOOOAL!! 𝑦 ∝ 𝑘 𝑥 QUESTION When 𝑥 = 100, 𝑦 = 1 When 𝑥 = 25, 𝑦 ∝ 𝑘 𝑥 When 𝑥 = 100, 𝑦 = 1 When 𝑥 = 25, 𝑦 = ? GOOOAL!! SAVED! 2 4 6

tom@goteachmaths.co.uk Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths.co.uk