by Making Algebra Fun by Angela Dougher © 2026
Premier Publisher
Price: $2 USD
Subjects: math,mathHighSchool,highSchoolGeometry,congruence
Grades: 8,9
Students use the angle pairs formed when parallel lines are cut by a transversal to find missing angles and solve for x with 15 self-checking digital task cards. Every answer is a whole number that students type in. Skills covered: - Corresponding angles - Alternate interior angles - Alternate exterior angles - Same-side (consecutive) interior angles - Same-side exterior angles - Solving for x with one or two expressions - Finding x so that two lines are parallel (converse) - Two-step problems: solve for x, then find the angle measure Cards progress from finding a missing angle to algebra and two-step problems. The deck works for independent practice, homework, stations, review, and sub plans. Each card includes alt text for screen reader users. Questions and alt text were created with the help of AI (Claude by Anthropic) and reviewed by the author for accuracy.