For today's lesson you will need number cards 1-20. You can print these from the document below or create your own by cutting up 20 pieces of paper with the numbers 1-20 written clearly, one number per piece of paper. You will also need 20 counters of 2 colours, there is a document below that you could print or you can make your own with circles of paper (if they are red on one side and yellow on the other this would help even more) alternatively you could use coins, pasta, lego bricks or anything similar. Finally, you will need a tens frame - you can print the one below or draw your own.