AIKIJO

合気杖

It's typically about 4 feet long and made of sturdy wood like oak or beech. By incorporating jo practice into your Aikido training, you can deepen your understanding of the art's core principles, develop essential self-defense skills, and enhance your overall technical proficiency. The jo offers a unique perspective on Aikido, allowing you to explore new techniques and movement patterns while reinforcing fundamental concepts. Additionally, practicing with the jo can be a mentally and physically challenging experience, helping you to push your limits and achieve greater mastery of the art.

And Aikijo contain 4 main parts:

Suburi (fundamentals): 20 movements
"suburi" refers to repetitive solo practice of fundamental movements or techniques. These exercises are typically done without a partner and are used to develop muscle memory, precision, and proper form. Suburi can include movements such as basic strikes, cuts, and thrusts with weapons like the bokken (wooden sword) or jo (wooden staff), as well as empty-handed techniques. This practice helps Aikido practitioners to internalize the mechanics and principles of the techniques, which can be applied in partner practice and more advanced scenarios.
Awase : it is different between styles and teachers.
"Awase" refers to the concept of blending or harmonizing with an opponent's movements or energy. When applied to weapons practice, such as with bokken (wooden sword) or jo (wooden staff), Awase involves coordinating your movements with your partner’s attacks and defenses in a fluid and responsive manner. The goal is to create a seamless, cooperative interaction rather than a clashing confrontation.
Practicing Awase with weapons helps aikidoka develop timing, distance, and the ability to read and adapt to an opponent's intentions. It also reinforces the central principles of Aikido, such as blending, redirecting force, and maintaining a centered and balanced posture. This practice helps build skills that are transferable to empty-hand techniques, enhancing overall proficiency in Aikido.
Kumijo: basically 10 groups.
"Kumijo" refers to a set of partnered training exercises or forms involving the use of "jo." The term "Kumi" means "partnered" or "combination," and "Jo" refers to the staff itself. Kumijo exercises focus on engaging with a partner to practice various techniques, movements, and applications using the jo.
These drills are designed to develop skills such as timing, distance, and proper body alignment, as well as to enhance understanding of the principles of Aikido when using weapons.
Kata: 3 set of companied movements
"Jo kata" in Aikido is a specific sequence of movements or techniques performed with the Jo staff. These sequences are designed to teach practitioners various aspects of distance, timing, posture, and fluidity, as well as to develop proficiency in using the Jo as a weapon. The practice helps to blend weapon techniques with empty-hand techniques, emphasizing Aikido's principles of harmony and fluid motion