It has been so great to see my kids develop their decimal place value knowledge (and fraction knowledge) by using materials. This has concretised it for them and helped them connect with the knowledge. Having had success with this I thought great they've got it and I gave them an activity that would see them solving addition and subtraction problems that includes tenths and hundredths...without using materials.
This was an epic fail on my behalf. In my excitement I jumped from using materials straight to using number properties totally by passing imaging. As you can imagine the kids found this too hard (although some managed). We ended up working through the problems altogether in their group in order to complete it. I learnt a valuable lesson. Wishing and hoping my kids will get something doesn't work. I need scaffold the next steps more effectively in order to get further growth. Lesson learned.