Anpanman to Hajime yo! Iro, Kazu, Katachi Wakarukana Iro, Katachi
アンパンマンとはじめよう! いろ・かず・かたち わかるかな いろ・かたち
Overview
Part of the "Let's start with Anpanman" series of educational animation for kindergarten children featuring characters from Anpanman.
Source: AniList
Staff
Official site & databases: AniList