Strategic Solving Part III
These exercises and activities are for students to use independently of the teacher to practise number properties.
Number Framework Domain and Stage:
Addition and Subtractions AM
NA 4-7: Form and solve simple linear equations.
NA 4-2: Understand addition and subtraction of fractions, decimals and integers.
NP Book Reference:
These exercises and activities follow from the AM teaching episodes from Book 5and are for those students who are able to use the number properties of addition and subtraction.
Prior knowledge: students should be able to…
- Use a range of number strategies for solving addition and subtraction problems with integers.
During these activities students will meet:
- Linear equations with integer solutions
- Using appropriate forms of the equation to solve for x.
- Using a range of add/sub strategies to solve linear equations.
Exercise 1 – Students are not required to know any methods of solving equations to be able to solve these problems. The requirement is that they immediately write the equation in a form that tells them the calculation they need to do (for learning this skill with whole numbers see Task: Strategic Solving Part I). Students will be required to select an appropriate Add / Sub strategy in order to calculate x.
Exercise 2 could be used as homework.