Mixed practice
Items from across the topic in a mixed order, fresh contexts, and the two terms by recall (typed), then one short written answer. In a full course the PP100 mastery bank follows this.
A class designs a stand for a dog's water bowl. "The bowl must not spill when the dog drinks." Is this a criterion or a constraint?
"Build the stand from one shoebox and tape." Is this a criterion or a constraint?
"The stand must be really nice." Is this a criterion?
Criterion: the shoe shelf must hold six shoes without bending. Test: put six shoes on it and watch. Does the test check the criterion?
Criterion: the shoe shelf must hold six shoes without bending. Test: push down on the empty shelf. Does the test check the criterion?
Kyle uses a big marble on marble run A and a small marble on marble run B. Is this a fair test?
Kyle lets the same marble go from the top of marble run A and then marble run B. Is this a fair test?
A seedling shade must keep the seedling out of the sun at noon, using only one paper plate. The shade keeps the sun off at noon and used one plate. Does it solve the problem?
A seedling shade must keep the seedling out of the sun at noon, using only one paper plate. Another shade keeps the sun off at noon but used three paper plates. Which sentence is true of this shade?
A seedling shade falls over in the wind. Its stick snapped, and its plate is fine. What should change?
A seedling shade fell over in the wind. Its stick is made thicker. How should the shade be tested again?
"The toy garage must hold four toy cars." What is this kind of sentence called?
"Build the garage from one cardboard box." What is this kind of sentence called?
Two toy garages are compared. The same four cars are put in each one. What is this kind of test called?
A class is designing a cardboard chair for a teddy bear. Write one sentence that says a job the chair must do, that anyone can test. Start with "The chair must …"