Shin-Gakukai Observation Skills Problem Set ②-⑥. Only pages 1-3 of ② have writing, so it starts from page 4. There are also a few copies included with ⑥. Please understand that these have been stored at home. - Series: Observation Skills Series - Volumes: 2, 3, 4, 5, 6 - Target Age: Kindergarten, Elementary School (Year 1) #ShinGakukai