Academy Teachers may want to teach this to Academy students for lessons.

1. What is Chakra?
Chakra is the energy Ninja need to preform a Techniques. If Ninjas don't have enough Chakra it could endanger their life. Chakra control is split into two sections. Body and Spiritual.
Body: Strength and the ability to jump from tree to tree, land on feet with no injuries, stamina of body, and the ability to train a Chakra system.
Spiritual: The side that helps you use Techniques.

Chakra Circulatory System

Ninjas also have a circulatory system to transport chakra. Instead of having veins and arteries, chakra is transported from certain pipes and passage ways. Chakra is released by traveling through this system and out. Since the chakra circulatory system goes around many important organs, when the circulatory system is attacked and damaged, your organs may be damaged as well. There are 361 openings in the chakra circulatory system in your body. This opening is called the Tenketsu. When the Tenketsus are blocked you will be unable to perform any techniques. The Byakugan has the ability to neutralize all the holes so chakra cannot flow. It is very important to protect yourself from these types of attacks.

Chakra Gates

The Eight Gates are eight specific points on a person's chakra circulatory system. They limit the overall flow of chakra within a person's body. The basis for the idea of the chakra gates comes from the body's limits on the functions within it. This makes the body much weaker, but it keeps the body from expiring too soon. By opening these gates, the user can surpass their own physical limits at the cost of extreme damage to their own bodies. Rock Lee is able to open the first five gates. Might Guy, who taught Lee the skill, is able to open at least six. Kakashi Hatake can open at least one gate, as shown while he is rock climbing where a shot of his brain shows the relevant point activating. The gates and what they release are listed below:

1. Gate of Opening releases the brain's limit on the total strain on the muscles, giving the user five times their normal strength and speed. The user can perform the Front Lotus at this level. The Front Lotus entails restraining an airborne opponent, either with bandages or breaking their bones to prevent movement. The user then grabs them, spins them as they near the ground, and delivers a piledriver on impact, inducing severe head trauma. After using the Front Lotus the user is left extremely fatigued, making this jutsu a "double-edged sword".
2. Gate of Rest releases the brain's limit on the body's stamina, making a battle-worn person become miraculously ready to fight as if the fight had just started.
3. Gate of Life is located on the spinal cord, and releases the limit on the nervous system, which makes information travel at a faster rate and creates even more stamina. As a side effect, the user's skin turns red, indicating an increased blood-oxygen level. The user can perform the Reverse Lotus at this level, though in all of its uses the first five gates are opened as well. To use the Reverse Lotus the user must first launch his opponent into the air. Once doing so they rapidly pummel the opponent with punches and kicks before sending the target crashing into the ground. This is usually fatal due to the speed and power behind the attack. Because so many chakra gates are opened at once, it can only be used once, since the user will likely be unable to stand afterward.
4. Gate of Pain releases the limit on oxygen intake in the lungs, creating much more oxygen for the body to use.
5. Gate of Closing releases the limit on the amount of chakra released at one time. Allows the user's movements to exceed the speed of sound.
6. Gate of Happiness removes the limit on how much fat and proteins the intestines can digest, and releases otherwise useless energy resources, giving the user even more power and stamina. The user can perform the Morning Peacock at this level. Due to the advantages of the sixth gate, users of the Morning Peacock are able to repeatedly punch an opponent with such speed and strength that their punches form a peacock-like fan of flaming chakra. Once an opponent is struck with the attack they collapse, covered in the attack's aura.
7. Gate of Shock removes the limit on how fast the body can move, removes wastes from dead skin cells to feces, and gives the body a much cleaner system to work with, producing even more power and stamina.
8. Gate of Death opens the final gate located at the heart and uses up all of the body's energy. It makes the heart pump at maximum power and exceeds the power of every other gate. All the energy in every individual cell is used up, giving the user power well above that of any Kage. This "big bang" effect is only temporary, and destroys every muscle in the user's body, including the heart. Death is assured when opening this gate.



Elemental Chakra

There are five different types of chakra: Fire, Water, Earth, Wind, and Lighting. Most Jounin can use at least two types of chakra. Using two types of chakra at the same time is often a result of a bloodline limit. To find out the type of chakra a ninja uses they use paper from a tree that feeds off of chakra. If the paper splits you're type of chakra is wind, if it bursts into flames yours is fire, gets soggy its of water, the papper crumples if you are of lightning, and it turns to dust if you are of earth chakra. Once you are at Genin level you are aloud to get this paper to get your element. At Jounin you can get your second element. If you become Kage you may have 3.

Types of Fighting Chakra

Genjutsu - Genjutsu techniques are mostly illusionary techniques. These techniques cause the opponent to hallucinate and make them see things that are not really there. Genjutsu type techniques are great to use when you are trying to escape or confuse the opposition. While your opponent is confused, you can attack without them knowing where you are or you can escape.

Ninjutsu - Ninjutsu is the art of making hand seals and kneading chakra to perform a jutsu (technique). When you make the appropriate hand seal, your desired technique comes forth! Performing Ninjutsu techniques require full concentration and if interrupted, will not work. It only takes a few seconds to successfully execute a Ninjutsu technique, however some can take much longer. Ninjutsu is probably the most used attack type out of the three main categories.

Taijutsu - Taijutsu is the hand to hand combat part of a ninjas' training. It deals with no handseals and chakra is focused throughout the entire body. Taijutsu attacks deal from a variety of slow to fast movements. They vary depending on the amount of chakra used.

Doujutsu - Doujutsu techniques are performed by with the eye. Doujutsu techniques are powerful because they can read Genjutsu, Taijutsu, and Ninjutsu techniques and defeat them without any physical movement whatsoever. Because of the difficulty and power of these techniques, people who perform Doujutsu techniques are usually geniuses. The Sharingan is considered a Doujutsu technique.

Hijutsu - Hijutsu techniques are special techniques that can only be performed by a specific ninja, or only by ninjas from a specific clan or village. These techniques usually have to do with the heritage or physical appearance of the ninja. A lot of times, these techniques are a ninja's most powerful attack and favorite to perform. There are many different Hijutsu techniques in the series. Bloodline limits are considered Hijutsu techniques.

Kinjutsu - Kinjutsu techniques are techniques that are illegal and outlawed by the Kages. Kinjutsu techniques are extremely strong and can cause huge damage when used.

Kekkai Genkai - Kekkai Genki are inherited traits, techniques or jutsu(s) passed down from generation to generation, usually by clan. There are few who have this special ability. Those who do are generally very talented and strong. Most people with a bloodline limit are considered geniuses because of what he or she can do. Bloodlines can increase physical strength, speed, endurance, or a type of combat.


Hand Seals

Hand Seals are used to maniupulate, if seals a stopped or not completed, the Technique will fail.

These are the 12 main hand seals used by ninjas to perform Techniques. Each different Technique has a unique combination of seals and each different seal represents an animal of the Chinese Zodiac. Below you can find out all about these seals and also different combinations to perform different types of attacks.


Bird ( Rooster )

Boar

Dog

Dragon

Hare

Horse

Monkey

Ram

Rat

Serpent

Tiger

You forgot something in the 6th gate...that it is also is the level of Lotus when you can use the 'True Hidden Lotus' technique.