In my opinion, the Imagine series of games are, lets say a bit "rubbish". Even though there is alot of them.
Imagine Teacher is a DS game for people 3+ (According to my manuel) and has very poor graphic quality.
You only start off with about 2 students. (Correct me if i'm wrong) The amount of students build up as different days pass. I got to day 32 in 10 minutes.
You don't "Teach" the lessons. It's just playing minigames for each subject.
For example, Teaching History: Play a mini game that lasts about 30 seconds, then the lesson is over.
As far as i can remember, there is History, English, Geography, Maths and Pottery.
Kiddies can lose their personal belongings while in school, and you need to search for it while tiding up at the end of the day.
Special Events do happen, though i haven't been to any, a party of some sort.
Graphic Quality
Graphics are alright. Some objects look like a million pixels. So a 4/10
Gameplay
The Gameplay is ok, i guess there is a story to the game that lasts a reasonable amount of time. But the controls are simple, and so are the missions. 5/10
Difficulty
Simply Easy, its just the simple Minigames and tiding, and added Events and extra education in the middle. about 2/10 - Easy
Overall
Overall, i think i rate the game at about 5/10
I don't really recommend it.
But i guess its ok for the ones who like school :o