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Level 4a

Number and Algebra

Chapter 7 - Expressions, formulae
and equations





Overview of the chapter


Rich tasks

  • These are problem solving open-ended questions that require students use formulae. The tasks can be given at the start of a topic and done as the students gain enough knowledge to complete them, inserted into a topic at an appropriate place or given as homework or extension.
  1. Can you work a spread sheet?
  2. Shoes on feet

> More on "Rich tasks for this Chapter"...



Writing and understanding expressions

  • Explores how expressions can be used to model situations

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Modelling real life situations with formulae

  • Explores how formulae can be written from rules written in words and how they are used to model situations.
  • Gives practice at using formulae to solve problems.

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  • Explores writing equations for Cuisenaire rods and how these equations can be written in different ways.
  • Introduces solving equations using inverse operations using “I think of a number” problems.

> More on "Equations"...




Other Chapters in the NUMBER AND ALGEBRA strand:




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