Hi! I am currently undergoing a study of how starters and plenaries can affect behaviour management. After doing some initial reading I seem to have hit a brick wall, cannot find any decent books on starters and plenaries, what they are, why they are used and where they came from! I also cant seem to find any previous studies even close to what I am doing. If any body has any books they can point me to or any links it would be much appreciated! Thanks in advance!