This ESL class idea helps ESL students gain English writing skills by teaching them to describe and explain. Aimed at low-intermediate to advanced students, this writing lesson lasts for hours. The lesson involves several language and critical thinking skills: Understanding the difference between describing and, According to Benjamin Bloom's taxonomy, Taxonomy of Educational Objectives, 1956, thinking skills are divided into lower order and higher order skills. Lower order skills include knowledge, understanding and application. Higher order skills include analysis, synthesis, and evaluation. To stimulate critical thinking in ELT, teachers need,