These Differentiated Parallel Lines Cut by Transversal Task Cards are designed for classroom use in pairs, small groups, or by individuals. They are a great way to differentiate instruction as they have four difficulty levels. The first requires students to identify angular relationships by name; the second requires students to find angular measurements in degrees given the measurement of another angle; the third requires students to create equations and solve for the value of x as algebraic expressions are used to represent angular measurements; the fourth requires students to create equations from expression pairs, solve for x and then find the measurement of the two angles in degrees. They come with QR codes embedded to allow students to use personal devices, if you wish, to check their answers. The cards are suitable for laminating for many years of use. Also included is a teacher answer key.