realistic: I take this from Flickr from CU-Boulder and Freudenthal Institute US hosted the Fifth Realistic Mathematics Education conference, or RME5, in September of 2015.
Realistic: imaginable, realizable, not just “real-world”
Meaningful: significant, relevant, important, consequential, telling, material, valid, worthwhile
1. having a serious, important, or useful quality or purpose.
“making our lives rich and meaningful” “a meaningful relationship”
2. communicating something that is not directly expressed.
“meaningful glances and repressed passion”. “a meaningful glance”