Mathematics Probability Language 9–10 yrs

Likelihood Language

可能性的描述语言

Description

Use probability language to describe and compare the likelihood of everyday events using words such as certain, likely, even chance, unlikely, impossible

Mastery Evidence

✓ Place five everyday events (e.g. 'the sun will rise tomorrow', 'it will snow in July', 'I'll flip heads') on a scale from impossible to certain
✓ Use 'likely', 'unlikely', 'certain', 'impossible', and 'even chance' correctly to describe different events
✓ Explain why pulling a red ball from a bag of mostly red balls is 'likely' but not 'certain'

Assessment Prompt

Does your child use words like "certain," "likely," "unlikely," and "impossible" correctly — for example, knowing that rolling a 7 on a normal die is impossible but rolling an even number is likely?