This paper discusses the evolution, development, and thinking behind eight lesson plan formats. A Herbartian 5-step lesson plan (1980) involves teachers' understanding and use of students' previous knowledge. It includes preparation of previous learning, presentation of new materials, association of old and new ideas, generalization, and application. A 4-step model consists of teachers presenting new material, demonstrating its use, providing practice, and evaluating the lesson's success. A reflective 5-step plan involves creating a description, objectives, materials and resources lists, procedures, and assessment plan. A 6-step clinical lesson plan consists of introducing the lesson, determining objectives, providing instruction, offering guided practice, providing closure, and assigning independent practice. An 8-step plan consists of a lesson introduction, behavioral objective, material introduction, skills modeling, guided practice, independent practice, assessment, and closure. A 12-step lesson plan involves setting goals and objectives, determining materials, planning student interaction, planning transitional activities, anticipatory set, modeling, checking for understanding, and offering guided practice, independent practice, closure, and evaluation. A Cross Cultural Language Development plan, which addresses student diversity, involves preparation, presentation, practice, evaluation, and expansion. An example of this is the Cognitive Academic Language Learning Approach (CALLA) Instructional Plan. A Specially Designed Academic Instruction in Sheltered English Lesson Plan targets non-English proficient students and includes: lesson title, focus question, outcomes, target vocabulary, primary sources, visuals, motivation, vocabulary activities, guided instruction, integrating language, assessment, and independent work. Eight appendices present the lesson plans. (SM)