# Alignment: Yemen • Mathematics • Secondary One • Part Two

Use Nagwa in conjunction with your preferred textbook. The recommended lessons from Nagwa for each section of this textbook are provided below. This alignment is not affiliated with, sponsored by, or endorsed by the publisher of the referenced textbook. Nagwa is a registered trademark of Nagwa Limited. All other trademarks and registered trademarks are the property of their respective owners.

• Unit Six Solving Equations and Inequalities
• 6-1 Solving a Second-Order Equation in One Variable
• 6-2 Sum and Product of the Two Roots of a Second-Order Equation
• 6-3 Forming a Second-Order Equation Given Its Two Roots
• 6-4 Union and Intersection of Intervals
• 6-5 First-Order Inequalities in One Variable
• 6-6 A Second-Order Inequality in One Variable
• 6-7 Absolute Value
• 6-8 Solving a System of First-Order Inequalities in One Variable
• 6-9 A First-Order Inequality in Two Variables
• 6-10 Solving a System of First-Order Inequalities in Two Variables
• Unit Seven Trigonometry
• 7-1 Directed Angle
• 7-2 Units for Measuring Angles
• 7-3 Trigonometric Ratios
• 7-4 Relations between Trigonometric Ratios
• 7-5 Using Calculator in Trigonometry
• 7-6 Solving a Right Triangle
• 7-7 Applications on Solving a Right Triangle
• Unit Eight Coordinate Geometry and Transformations
• 8-1 Revision
• 8-2 Slope of a Line
• 8-3 Equation of a Straight Line
• 8-4 Distance from a Given Point to a Given Line
• 8-5 Reflection
• 8-6 Translation
• Unit Nine Vectors
• 9-1 Vectors
• 9-2 Representing Operations on Vectors Geometrically
• 9-3 Parallelism and Perpendicularity of Two Vectors
• 9-4 Unit Vector
• 9-5 Dot Product of Two Vectors
• Unit Ten Symbol (E), Its Meaning and Properties
• 10-1 Symbol (E), Its Meaning and Properties
• 10-2 Central Tendency Measures
• 10-3 Diffraction Measures