As a family give the questions in Big and Small Numbers in the Living World from NRICH a try. The questions provide fun and interesting estimation problems that encourage students to practice their computation skills with large numbers and apply appropriate problem solving strategies. Remember there is no absolutely 'correct' answer to many of these questions, rather, they can be productively used for discussion as a family: each family member could create their own answers and then take turns justifying their solutions. Do you agree with one another? Disagree? Is there an obvious best 'collective' answer? Some key questions NRICH recommends:
- What assumptions will you need to make in this question?
- How accurate do you think you answer is?
- What order of magnitude checks could you make to test that your answer is sensible?