Instructional materials took the form of simple art paper, manipulative, natural objects in the surroundings, digital materials like video clips, power-point and net sources. Teacher can be innovative in the production and use of instructional materials. There are many available ready-made which the Department of Education in the Philippines not only promote the use but also monitors the singing-up and utilization of those available in the government sites like LRM (Learning Resource Material) portal. Many have explored on the benefit that can be gained from using and reusing those materials, and even the modification of those done by authorities. This book focused on determining the effectiveness of the use of teacher-made brochures in Gen-Math and Stat-and-Prob subjects of Grade 11 learners in Talangan Integrated National High School, Nagcarlan, Laguna, Philippines. The author developed 100 teacher-made brochures and used them in classes. Read inside to discover how the teacher-made brochures benefited the learners.