1st Kyu syllabus (Junior kyu grades (USA Judo)).

Purple belt.
Awarded by USA Judo.
The guidelines name each half-belt by two colours, such as white/yellow, without saying how it is worn.

USA Judo's junior rank program: ten kyu grades from 10th Kyu, a white/yellow belt, to 1st Kyu, a purple belt, with a two-colour half-belt between each full colour. The guidelines present it as a teaching reference that instructors adapt to each athlete, assuming a start at 5 or 6 years old and half a belt promotion a year.

1 technique are set for this grade.

Kansetsu-waza · joint locks
---------------------------
  Ude-garami (腕緘, うでがらみ), entangled armlock.
    https://wazabook.com/techniques/ude-garami/

The official syllabus
---------------------
Transcribed from USA Judo's published document. This wording
is the authority for what is examined; everything above is this reference's
own arrangement of it.

Fundamentals of standing judo
-----------------------------
  1. Chikara no oyo

Ashi Waza
---------
  1. Renraku waza

Koshi Waza
----------
  1. Renraku waza

Te Waza
-------
  1. I, II, III group nage no kata
       in this reference: Nage-no-kata

Kata Waza
---------
  1. Renraku waza

Kansetsu Waza
-------------
  1. Ude garami

Filmed for this grading
-----------------------
  Junior Rank Program General Guidelines (8/11/14) (USA Judo): https://docs.usajudo.net/forms/Promotion/General%20Guidelines%20For%20The%20Junior%20Rank%20Program.pdf

Flashcards
----------
Drill the names before the day: an Anki deck for each grade turns the Japanese names into quick recall:
https://wazabook.com/flashcards/

From Waza Book: https://wazabook.com/grades/usa-judo-junior-kyu/1st-kyu/