Choosing mathematical tools
Mathematics · Mathematical Thinking · meta
Select and use appropriate tools and representations strategically: choose between mental, written, and diagrammatic methods; use calculators for checking; select fraction models suited to the task
What mastery looks like
- Decide to use mental multiplication for 25×4 but a written method for 167×3
- Choose fraction strips rather than a number line to compare 3/8 and 1/4
- Use a ruler and squared paper to verify area by counting squares after calculating l×w
Check your understanding
When Choosing mathematical tools is working on maths, do they choose the right method — doing simple calculations in their head, using written working for complex ones, and sketching a diagram when a problem involves shapes or fractions?
Prerequisites
Required first
Helpful