Problem-Based Learning Mathematical Vocabulary

Definition: Data/information that includes numbers, collected data/information represented in a numerical way

• control group

• statistics/stats

• math problems

• data/datum

Definition: collected pieces of information, such as facts, numbers, and/or statistics, from a sample group.

• control group

• statistics/stats

• math problems

• data/datum

Definition: In an experiment, this is the group in which no factors or details are changed because it serves as the comparison group.

• control group

• experimental group

• variable

• Difference

Definition: In an experiment, this is the group in which one detail is changed at a time to see if adding or taking out that detail effects the outcome.

• control group

• experimental group

• variable

• Difference

Definition: an element, detail, feature, or factor that is changeable.

• data

• experimental group

• variable

• control

Definition: details or characteristics that make up a certain group or population of people. For example, details or characteristics of a school's student population (income, race, religions, etc.)

• control group

• experimental group

• variable

• demographics

Definition: when a detail in an experiment changes, this is how the ending result compares and varies from the original results. For an example, the difference in scores between a pre-assessment and post-test.

• difference

• experimental group

• control group

• demographics

True or False: In an experiment, you must always have a control group, which is the group where no details/characteristics are changed, so that you have something to compare your experimental data to.

• True

• False

True or False: An experiment is still accurate and valid if you change more than one detail or characteristic (variable) at a time to see how the outcome is effected.

• True

• False

True or False: Only one detail or characteristic (variable) should be changed at a time to get more accurate data of how these variables effect an outcome.

• True

• False