In the United States, Guided Reading is a key component to the Reading Workshop model of literacy instruction. Guided Reading sessions involve a teacher and a small group, ideally of two to four children although groups of five or six are not uncommon. The session would have a set of objectives to be taught during a session lasting approximately 20 minutes. While guided reading takes place with one group of children, the remaining children are engaged in quality independent or group literacy tasks, with the aim of allowing the teacher to focus the small group without interruption. Guided Reading is usually a daily activity in English and Welsh primary school classrooms and involves every child in a class over the course of a week. In the United States, Guided Reading can take place at both the primary and intermediate levels. Each Guided Reading group meets with the teacher several times throughout a given week. The children are typically grouped by academic ability, reading levels, or strategic/skill-based needs.