Lesson: Proportions Mathematics • Third Year of Preparatory School

Students will be able to

• define the terms proportion, continued proportion, first proportional, second proportional, third proportional, fourth proportional, middle proportional, means, and extremes,
• use properties of proportions to
  • evaluate unknowns,
  • evaluate algebraic expressions,
  • prove algebraic statements,
• use properties of continued proportions to
  • evaluate unknowns,
  • evaluate algebraic expressions,
  • prove algebraic statements.