I have a 20 min interview lesson next week (Thurs). I have to teach a group of 25 year 1/2s a maths lesson. Would really appreciate constructive comments........ LO: Solve mathematical problems or puzzles/ Know addition and subtraction facts up to 10. How about 'Four-pin Bowling'. On board numbered 1-4 (either models or pictures). Which pins must they knock down to score exactly 5? This would be provided in physical/picture format for the chn to use to have number bonds up to 10 (LA, if identified, would continue with the 1-4, moving onto the 10 bonds if appropriate). Extension/Differentiation pins that would have number bonds of 20. Envisage doing this as a paired activity.