Stadiums In America Osvaldo Martinez,                  KENNEDY CONQUISTADORES Introduction Standards  Objectives Activities Assessment  Results Resources
		Introduction This would be a nice activity to do at the beginning of spring, as the baseball season gets underway.  Students will be given two teams to investigate.  They will be asked to make a scaled drawing of their teams’ stadium.  One drawing should fit on an 8½ x 11  piece of paper and the second drawing should be on a regular size construction paper.  The students should come out with the appropriate ratio and be able to explain to the class why their ratio is the correct one.   Subject: Math Topic: Measurement & Geometry Grade Level: 7th Student Lesson name and URL: http://ctap295.ctaponline.org/~omartine/student/       Stadiums In America California's Mathematics Academic Standards Math: Measurement and Geometry       Seventh Grade    1.0 Students choose appropriate units of measure and use ratios to convert within and between measurement systems to solve problems:      1.2 Construct and read drawings and models made to scale.   Instructional Objectives Students need to find and write down the playing field dimensions for a pre-assigned baseball stadium. Students will  scale actual field dimensions, so that the scaled dimensions fit in an 8 ½ x 11 piece of paper. Students will make a scaled drawing of the baseball field on an 8 ½ x 11 piece of paper. Students will write a rationale on why they chose their specific dimensions.  It should include the math used to convert from the actual dimensions to the scaled dimensions. Upon request students will define 5 words out of a list of 8 that are components of the lesson.   Student Activities Using one of the different MLB stadiums, students will need to calculate the correct proportion, so that a stadium's field dimensions can fit inside an 8 ½ x 11 piece of paper.  The scaled drawing has to take up as much of the paper as possible.  As a start up activity, students will visit one of two web sites for help.  http://www.majorleaguebaseball.com http://www.mathleague.com/help/ratio/ratio.htm http://www.hbschool.com/glossary/math/                                                                                                                                                    Introductory Activity  Pre Test Model Vehicles                                                                                                                  In groups of four, students will receive a scale model.  Using the information that is supplied in the package students will have to come up with the proper dimensions of the given object. They will have to explain to the class the rationale that they used in coming up with the dimensions.   Worksheet   Enabling Activity Students will start of the lesson by practicing analyzing a map.  Their first activity will be to calculate the amount of miles that a baseball team travels on an average road trip. Activity 1   Culminating Activity Students will pick a second baseball stadium to scale down to fit on a ( ) construction paper.  They will need to include their new calculations and their rationale.  As students present their final product to the class, they will need to answer a series of questions about the importance of ratio and proportion.   Assessment Assignments will be graded based on the following rubric.  Students will get a copy of it before they start any of the activities.  Class will be given the opportunity to make modifications upon approval. Rubric Template Beginning 1 Developing 2 Accomplished 3 Exemplary 4 Score   Scaled drawing   Inaccurate ratios are used.   Drawing too small or too large.  No explanation. Can define 2 words  2 or more ratios are not correct.   Drawing fits the page. Explanation is not clear. Can define three words. Proper ratios are used Drawing fits.   Explanation is clear may need examples to clarify. Can define 5 words. Accurate ratios are used.  Explanation leaves no doubt. Can define all words.     Introductory Activity     Can't come out with true dimensions.  Class presentation is poor.  Group is not organized Dimensions are o.k. No proper labels given.  Group does not present only an individual. Accurate dimensions are given.  Group presentation is o.k., but can not answer questions. Correct dimensions are properly labeled.  Group shares in the presentation and answer all questions asked.      Activity 1 Does poorly on the map.  Over 50% of the answers are wrong There are more than three wrong answers Has one incorrect response All questions answers correctly     Culminating Activity  Inaccurate ratios are used.   Drawing too small or too large.  No explanation 2 or more ratios are not correct.   Drawing fits the page. Explanation is not clear . Proper ratios are used Drawing fits.   Explanation is clear may need examples to clarify Accurate ratios are used.  Explanation leaves no doubt.  Written by Osvaldo Martinez. Last updated 07/17/01 .     Results After implementing your lesson (sometime between January & March), insert a chart of your pre-test, post-test, and culminating assessment data.   Presentation Web Resources & Supplementary Materials   http://www.majorleaguebaseball.com http://www.mathleague.com/help/ratio/ratio.htm http://www.hbschool.com/glossary/math/   Introductory Activity http://www.mapquest.com Enabling Activity Culminating Activity     Kennedy Middle School El Centro, CA Osvaldo Martinez omarti@mail.ecsd.k12.ca.us Last Revised: 07/17/01