I selected the correct geometric fact, theorem, formula or transformation and used a clear diagram with appropriate labels and units.
Even Better If (EBI)
I will name the fact or theorem, show the substitution or construction step and check whether the size, direction and units of the result are reasonable.
Stretch and deep challenge
Stretch: A map scale is 1 cm:4 km. Two points are 7.5 cm apart. Find actual distance.
Deep challenge: The bearing of B from A is 065°. Find the bearing of A from B.