This set of foldables introduces Pre-Calculus students to trigonometric functions. This is the first lesson in Unit 4 Trigonometric Functions for Pre-Calculus Included in this resource - Color-coded graphic organizers on sine, cosine, tangent, cosecant, secant, and cotangent - Black-line master graphic organizers - Color coded notes with examples. - Practice problems (good for homework) - Answer key for practice problems Unit 4 topics include: - Trigonometric Functions - Graphing sine and cosine - Graphing tangent, cotangent, cosecant and secant - Inverse Functions Related bundles include: - Unit 4 for Trigonometric Functions FOLDABLES ONLY - - Unit 4 for Trigonometric Functions Bundle - PreCalculus Mega Teacher Resource Bundle which includes my entire library of PreCalculus units and all future PreCalculus resources. This purchase is for one teacher only. This resource is not to be shared with colleagues or used by an entire grade level, school, or district without purchasing the proper number of licenses. If you are interested in a site license, please contact me for a quote at firstname.lastname@example.org. This resource may not be uploaded to the internet in any form, including classroom/personal websites or network drives.