Blooms’ Revised Taxonomy is Taxonomy of Cognitive Objectives. It is expressing qualitatively different kinds of thinking. It is adapted for classroom use as a planning tool. It provides a way to organize thinking skills into six levels, from the most basic to the more complex levels of thinking.
Critical thinking involves logical thinking and reasoning including skills such as comparison, cause/effect, patterning, and planning. The first three levels of Bloom’s Taxonomy (knowledge, comprehension, and application) require lower thinking, while the last three levels (analysis, synthesis, and evaluation) require higher thinking.
Bloom’s Taxonomy has a little evident in setting learning objectives in the Saudi EFL classrooms. It is necessary for teacher because teacher should know the level of students whether they are pre-intermediate, or intermediate, or advanced level. Teacher can use Bloom’s Taxonomy to examine students' schemata, understand concept by organizing, comparing, and interrupting, to share opinions by making judgments about information. Bloom’s Taxonomy provides a hierarchy of cognitive skills that teachers can use to frame questions and activities that promote higher order thinking opportunities for students.