This is actually the Special Needs classroom. There's some photos of a typical classroom in the lunchtime photos. Only the Special Needs room has a round table like this. The chart on the wall is the phonetic syllabary hiragana I was talking about above. Each one stands for a syllable. It reads up to down, starting on the right side.
The blackboard and teacher's desk, and the brown box in the middle is a keyboard for music lessons in the classroom. Every classroom has a keyboard.
The teacher's desk and chair.
Kanji. This is the character for 'small'. It's the first character of the word for primary school, 小学校、shougakko
This is another syllabary called Katakana. It's used for sounds, animal names and foreign words.