they use his "specs" to focus the sunlight to set the wood on fire.
Ralph defends Piggy from Jack when he refuses to help with the fire. Ralph argues that Piggy contributes by thinking and suggesting ideas, even if he is physically unable to help. Ralph recognizes Piggy's value to the group beyond just physical labor.
The other two characters who helped keep the fire burning in "Lord of the Flies" were Piggy and Simon. Piggy was responsible for suggesting the idea of using Piggy's glasses to light the fire, while Simon helped to gather wood for the fire.
When Jack accused Piggy of not helping much with the building of the fire in chapter2: Fire on the Mountain Simon defended Piggy by mentioning that they had used Piggy's spectacles to light the fire so he had helped in that way.
because they need rescued and when piggy was there he made an effort to the make fire. and he help to Ralph for rescued and he was for Ralph mate.
his glasses
Jack steals Piggy's glasses because he sees them as a valuable resource needed for making fire, which he believes will help him gain power and control over the group. In his pursuit of dominance, he disregards Piggy and the consequences of his actions.
Ralph wants to get Piggy's specs back and Piggy wanted to kill Jack there and then.
They took Piggy's glasses, and fire from Ralph's camp.
Piggy suggests building the fire on the beach by using the lenses of the boys' glasses to focus the sunlight and start the fire. He recommends using the lenses like a magnifying glass to create the fire. Eventually, they successfully build the fire on the beach.
It is Jack's idea to use Piggy's glasses to start the fire. Jack steals the glasses right off of Piggy's face without even asking him first.
The boys use his specs(glasses) to direct the sunlight to the sticks on the mountain and make a fire.
Piggy represented civilization, reason, and intellect among the boys on the island. He played a crucial role in trying to maintain order and prevent chaos, offering practical solutions and advice to help the boys survive. However, his influence was not always heeded, leading to tragic consequences.