meaning of codes in school work for year 1

[rka2017]

hi there,
I have seen some my dd's work at parents evening. There were some codes marked by teacher such as I and S.Is that I refer to indedependant work and s refer to secure. I forgot to ask the teacher

Independent or with Support? (how they did the work) or indeed Secure (as in they can do it confidently).

You'll probably have to ask.