Your daughter's problem is beyond what would be considered normal problems with attention, memory, etc. Her behavior, because it interferes with mastering challenges at home and at school, warrants evaluation. A couple of possibilities stand out: (a) Inattentive-type Attention-Deficit/Hyperactivity Disorder and/or (b) deficit in short-term or working memory. Sometimes it can be difficult to discern one from the other, but it would help your daughter if you sought evaluation. Neuropsychological testing can determine the presence of memory problems and can also help (but is not necessary) determine the presence of ADHD.