Grade: 8 Pre-Algebra Assessment - DOC

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					                                   Grade: 8      Pre-Algebra Assessment
Power Standard: #4- Explore, Compare and Set Up Rates, Ratios, and Proportions


Engaging Scenario           Concepts             Skills                            Big Ideas                         Essential Questions
If Barbie was the size of         Scale                 Draw                           Proportions are used to          How do scale drawings work?
an average woman and              Charts                Create                          draw or make items to            If you use different scale
Ken an average man, what          Measurement           Reading a tape measure          scale.                            factors does it create different
would they look like? If          Ratios                Compare                                                           answers
the Batman action figure          Proportions           Write                          Scaling by the foot size
or the Stone Cold action          Similarity            Solve                           is not proportional to
figure was the size of an                                                                 scaling by the head
average man, what would                                                                   size.
his proportions be?
Let’s find out!!
                                                        Grade: 8      Pre-Algebra Assessment
                                                            Power Standard: #4
         Description                             Materials Needed                    Rubric
         Have students work with a partner             Measuring tape               Exemplary:
         or in groups. Instruct them to take           Barbies and action figures        Completed all of the requirements for proficient work
         the following measurements of a               Pencil                            Advanced work also includes measuring diameter of head, length of forearm,
         doll or action figure: height, head           Paper                                hand, shoulder to waist, and waist to ankle
         (circumference), chest, waist,                Worksheet                    Proficient:
Task 1   inseam, and foot (length). The                                                   All work is shown
         measurements are written in the                                                  All materials are returned neatly to their appropriate places
         first blank column of each of the                                                Measurements are made accurately
         charts. The numbers already given                                                All answers are neat and easy to read
         in the chart are the average                                                Progressing:
         measurements for the figures. The
                                                                                          All information not completed
         students will use these numbers to
                                                                                          All measurements must be complete to go on
         calculate their size change
                                                                                     Non-Proficient:
         magnitudes.
                                                                                          Need to repeat the task

         Once students have completed the              Worksheet                    Exemplary:
         measurements, walk them through               Pencil                            Completed all of the requirements for proficient work
         the fist conversion, using height to          Calculator                        Advanced work also includes answers in complete sentences with all answers
         be the first standard. For ex. if             Paper                                correct
         Barbie is 12 in. tall and the average                                       Proficient:
Task 2   woman is 65 in. tall, what would                                                 All work is shown
         the other enlarged measurements                                                  All answers are neat and easy to read
         be? Divide 65 by 12 to get a ratio                                               Chart is completed
         of 5.6, and then multiply each of                                           Progressing:
         the measurements by this ratio.                                                  Work is not shown on all answers
         This represents one “possible”
                                                                                          Answers are messy and difficult to read
         body shape. The next conversion
                                                                                          Chart is incomplete
         will use 21 inches as the standard
                                                                                          Questions are not completely answered
         for the head. Calculate this new
         ratio and repeat the process. Allow                                         Non-Proficient:
         the students to complete the chart                                               Work is not shown on any answers
         by calculating the conversions for                                               More than 30 percent of chart is incomplete
         the other standards. Complete the                                                More than 30 percent of questions are unanswered
         worksheet.                                                                       Need to repeat the task
                                                          Grade: 8             Pre-Algebra Assessment
                                                                          Power Standard: #4
         Description                              Materials Needed                    Rubric
         Assign each group to draw their              Butcher paper                  Exemplary:
         figure in real-life size according to        Pencils                             Completed all of the requirements for proficient work
         the body part you assign them.               Colored pencils                     Advanced work also includes adding color, facial features, and stylish clothing
         Assign a different body part to each         Markers                        Proficient:
         group that has a Barbie and a                Action figure or Barbie used        Figure is drawn to scale
Task 3   different body part to each group that           in task 1                        Figure is drawn neatly (no smudges, extra marks, etc.)
         has an action figure. When pictures          Measuring tape                      Figure is drawn dark enough to display
         are complete have the students attach                                             Worksheets are displayed on project
                                                      Tape
         their charts and answers to questions                                        Progressing:
         to the drawing and hang up in the
                                                                                           Some attributes are not drawn to scale
         room.
                                                                                           Figure is not neatly drawn (smudges and extra marks on drawing)
                                                                                           Figure is drawn too light to display to room
                                                                                           Worksheets are not displayed on project
                                                                                      Non-Proficient:
                                                                                           Figure is not drawn to scale
                                                                                           Need to repeat the task

         Take measurements of yourself and              Measuring tape               Exemplary:
         scale them backwards (reduce them)             Calculator                        Completed all of the requirements for proficient work
         to determine the dimensions of a doll          Pencil                            Advanced work also includes a detailed drawing to scale and in color
         or action figure modeled after you.            Graph paper                  Proficient:
         Write a paragraph describing what                                                 Chart made to display your measurements and scaled down measurements
Task 4   you would look like as a doll. You                                                Paragraph must be written in complete sentences with correct punctuation and
         may also draw a picture to illustrate.                                               spelling
                                                                                      Progressing:
                                                                                           Two of the measurements are not to scale
                                                                                           The paragraph contains three or less mistakes
                                                                                      Non-Proficient:
                                                                                           The measurements are not to scale
                                                                                           The paragraph contains more than three mistakes
                                                                                           Need to repeat the task

				
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posted:8/9/2012
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