BBC Two Learning Zone has produced a new series of video maths challenges for Key Stages 1, 2 and 3. Developed with input from our NRICH project, 3, 2, 1, Go! sees real schoolchildren solve problems given to them by sporting heroes.

You can also see teacher's notes for this video challenge and related activity ideas.

### Key Stage 2 - Football Scoring Challenge

In this 3, 2, 1, Go! video, two football-mad Key Stage 2 schoolchildren, Thomas and Zahida, are taken to Arsenal’s training ground. They meet Arsenal player Tomas Rosicky, and are set a maths challenge related to football.

Watch the video clip up to where the challenge is given, and then pause it (you can skip the introduction by starting to watch at 02:00 minutes into the video).

The challenge is to take ten shots at goal, and work out what percentage of shots went in.

What will Thomas and Zahida have to do to complete the challenge? You can discuss this in pairs and share your ideas with the rest of the class.

Watch the rest of the video.

What did you think about Thomas and Zahida's score?

What other percentages could have been scored from 10 kicks. How many different possibilities are there?

You can try the challenge yourself. Use cones or markers to mark the goal if you can't play on a football pitch. Get into groups: each group will be given a different number of kicks to to take in total, (5, 20, 25, 50). Take turns in your group to be the person keeping the goal, shooting and recording the results, and swap so that everyone has a go at being the goalkeeper, trying to score and keeping records.

Who was the best scorer?
Who was the best goal keeper?
What percentage did your group score?
What percentage were saved?
How did you work it out?

Follow-on activities

If you enjoyed this, why not try the following games from our NRICH website which explore similar mathematical ideas:

• 100 PercentCan you work out how many of the squares would be shaded for the percentage that the computer asks for in this interactive game?
• Matching Fractions, Decimals, Percentages This game can be played interactively against the computer. Can you match cards with the same value in fractions, decimals and percentages?

Commissioned by BBC Two Learning Zone with advice from Lynne McClure (Director of NRICH, Millennium Mathematics Project, University of Cambridge), the clips were produced in collaboration with BBC Sport.