MAT 240 TEST QUESTIONS WITH 100% ACCURATE
SOLUTIONS
the four steps for statistical problem solving
1. formulate questions
2. collect data
3. organize and display data
4. analyze and interpret data
population
the entire group
sample
a subset of the population
graphs to organize and display data
- dot plot
- stem and leaf
- back to back stem and leaf
- histogram
- bar graph
- line graph
- circle graph
- pictograph
- scatter plot
level 0
recognition
at this level, students recognize certain shapes as a whole without paying particular attention to
, their parts. They may emphasize unimportant aspects of a shape (size, orientation, etc) and
ignore important aspects of a shape (number of straight sides, angles, etc.)
level 1
analysis
at this level, students notice the parts that make up a certain shape and use them to describe
and sort the shapes. Students recognize that rotating a shape doesn't change its
level 2
relationships
at this level, students understand abstract relationships between figures, for example, a square,
a rectangle, and a rhombus. All of the three shapes have four sides and four angles. Two of
these shapes have four equal sides. Two of these shapes have right angles.
level 3
deduction
at this level, a student would understand mathematical postulates and theorems and would be
able to write formal proofs
level 4
axiomatics
at this level, the study of geometry is very abstract and is usually found in college-level
geometry courses
reflection symmetry
a shape with two halves that are mirror images of each other
rotation symmetry
the figure is its own image under a rotation and the center of rotation is the only fixed point
equiangular triangle
SOLUTIONS
the four steps for statistical problem solving
1. formulate questions
2. collect data
3. organize and display data
4. analyze and interpret data
population
the entire group
sample
a subset of the population
graphs to organize and display data
- dot plot
- stem and leaf
- back to back stem and leaf
- histogram
- bar graph
- line graph
- circle graph
- pictograph
- scatter plot
level 0
recognition
at this level, students recognize certain shapes as a whole without paying particular attention to
, their parts. They may emphasize unimportant aspects of a shape (size, orientation, etc) and
ignore important aspects of a shape (number of straight sides, angles, etc.)
level 1
analysis
at this level, students notice the parts that make up a certain shape and use them to describe
and sort the shapes. Students recognize that rotating a shape doesn't change its
level 2
relationships
at this level, students understand abstract relationships between figures, for example, a square,
a rectangle, and a rhombus. All of the three shapes have four sides and four angles. Two of
these shapes have four equal sides. Two of these shapes have right angles.
level 3
deduction
at this level, a student would understand mathematical postulates and theorems and would be
able to write formal proofs
level 4
axiomatics
at this level, the study of geometry is very abstract and is usually found in college-level
geometry courses
reflection symmetry
a shape with two halves that are mirror images of each other
rotation symmetry
the figure is its own image under a rotation and the center of rotation is the only fixed point
equiangular triangle
