Hello, I am after some advice! I have my first interview next week for a classteacher (I am nearing the end of my PGCE). The school would like me to teach a 1 hour maths lesson to Y3. All I have been told is to include mastery skills in my lesson and that the class is mixed ability. I have a few ideas but the one that sticks out is an adaptation of this: https://nrich.maths.org/6274 (Magic Vs). The concept would be exactly the same but I would not present it as Magic Vs. Essentially, all that the children would be doing is addition of up to 4 numbers, dividing by 2 and working through a problem logically. I would get them to work in pairs or small groups. For HA pupils I can get them to look at bigger numbers and see if they can recognise patterns. Would this activity work? Does anybody have any thoughts? Is this too difficult for Y3? Do I need to make it simpler? What else would you recommend? I appreciate any advice- I am not really sure where to start! Thank you.