Expressions, formulas and substitution
TLF ID A003497
In the lesson ‘Formulating algebraic expressions’, students were introduced to variables and forming algebraic expressions. In this lesson, students continue to develop these skills and will explore substituting values into familiar and unfamiliar formulas to determine an unknown. Students explore substitution in a range of authentic contexts to ensure their experiences with formal algebra are founded on a strong sense of the importance of algebraic concepts in the real world. This lesson can stand alone if desired, though practise and fluency with forming algebraic expressions is suggested prior to this lesson.