Kodomo-no-kata.

About
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A kata is a prearranged form, performed with a partner to a set pattern, and it teaches the principle behind a technique rather than how to win with it. Gradings ask for them, and not only for the dan grades.

The order is not here
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This reference does not list what this form contains or the order it is performed in, because it has no source for it that it can name, and a form performed in the wrong order fails a grading.
Your federation's kata syllabus is the authority for what you will be asked to do.

At a glance
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Recordings: 11.

Demonstrations
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Kodokan: Kodomo-no-Kata 1(ichi) https://www.youtube.com/watch?v=-wZKFsubC04
Kodokan: Kodomo-no-Kata 2(ni) https://www.youtube.com/watch?v=1Op61cPa-80
Kodokan: Kodomo-no-Kata 3(san) https://www.youtube.com/watch?v=FT3kgec9JEM
Kodokan: Kodomo-no-Kata 4(yon) https://www.youtube.com/watch?v=FQ6eJxB421o
Kodokan: Kodomo no Kata 5(go) https://www.youtube.com/watch?v=2-5at8cWc0E
Kodokan: Kodomo-no-Kata 6(roku) https://www.youtube.com/watch?v=VpLdKj5KvuM
Kodokan: Kodomo-no-Kata 7(nana) https://www.youtube.com/watch?v=LhVvmFDLMo0
Kodokan: Kodomo-no-Kata PR https://www.youtube.com/watch?v=DuIyaYqNszU
Kodokan: Online Kodomo-no-Kata Seminar 2021 https://www.youtube.com/watch?v=DTisjidK0nw
Assorted: Kodomo-No-Kata - Kodokan Version https://www.youtube.com/watch?v=FhwV1BjPYJQ
Assorted: Kodomo-No-Kata - French Judo Federation Version https://www.youtube.com/watch?v=sdGEvYpqR9k

From Waza Book: https://wazabook.com/kata/kodomo-no-kata/