Hi all, I am trying to bring in a mastery approach to maths this year. I was wondering if anyone had any ideas as to how they manage and organise the manipulatives in the lesson. I intend for the children to have access to Base 10 blocks, whiteboards, place value counters etc. each lesson but I don't want to waste valuable time giving these out etc. Any ideas? Also, if I'm unable to purchase enough Base 10 blocks does anyone have any ideas for low cost alternatives?