P.M.
There's quite a bit being discovered about motivation in children. Three surprising facts:
1. You shouldn't praise a child for "being something" (like "You are so good, so smart, so pretty, such a careful worker, so responsible, such a nice person, so…) because it makes them afraid to try anything new and risk the adult's assessment of them. You can and should encourage effort, but don't go overboard or the child then begins to rely on satisfying you rather than herself.
2. Rewards are actually demotivational. They, too, move the focus away from the child's own natural, internal desire for exploration and mastery to an externalized reward. This can appear to work for awhile, but then the child becomes bored with the task/accomplishment and just wants greater and greater rewards. This is an extremely unhappy cycle to initiate.
3. Lots of children need more space and time for self-discovery than modern life allows them to experience. Free, imaginative play is the primary mode of learning for children right up into the elementary years. Too much focus on academics frequently results in squelching children's curiosity and sours them on learning.
It's hard to tell with so little detail, but this teacher sounds like her expectations are not well matched to your daughter's needs. Those are pretty harsh criticisms for a child who's only beginning her educational career. I'd be worried about a toxic situation if I heard those things about my very young child.