This problem offers a good opportunity to gather and compare data
to create and test hypotheses and decide how much data is needed to
be able to reasonably justify your conclusions.
The problem should also generate much discussion in the
Use the interactivity - aiming the bow and shooting. Ask two or
three students to come up in turn and have 10 attempts.
Who scores most?
Do they have any strategies?
Why is it not enough to line up with the bull's eye? What might be
affecting what is happening?
Once some ideas have been seeded set the students the task of
finding a strategy for achieving a high score. Ask them to make a
note of things they notice or decisions they make.
Students will need to justify their conclusions so teachers could
use the problem to challenge students to provide convincing
How do I decide which way to adjust the sight?
How many goes should I have on each setting so that I can compare
If I score 10 followed by 10 with my first two arrows, does that
mean I have the ideal setting?
Comparing different sets of data from the same setting - can the
students draw any conclusions about the average scores and spread
for each set?
Suggest that the students aim for the bulls eye and discuss the
number of attempts that might make results "meaningful".