Scale Drawing University of Kentucky（比例图肯塔基大学）.pdfVIP

Scale Drawing Lesson Plan Cube Fellow: Tricia Muldoon Teacher Mentor: Katrina Easterling Goal: th Grade and Course: 8 grade Mathematics KY Standards: MA-08-2.2.1, MA-08-2.1.1, MA-08-3.1.4 Objectives: The students should learn to use ratio and proportions in real life situations. They should learn to be accurate in their measurements of lengths of objects and be able to scale down a 3-dimensional object to 2-dimensional drawings. Resources/materials needed: Meter sticks, 1\4 in graph paper Description of Plan: We work through one example of a scale drawing of an object in the classroom as a group. Then we find the dimensions of another object in the room and ask the students to individually complete a drawing. Finally, the students must create a scale drawing of an object not present in the classroom only using the measurements given. Lesson Source: This is activity we wrote up, but there are many similar activities described on the web. Much of the inspiration is from the OPB NTTI website /education/ntti/2003/scalemedown . Instructional Mode: Lecture and Group Work Date Given: Feb. 5, 2008 Estimated Time: 1 hr 3 Date Submitted to Algebra : Feb. 11, 2008 Form 8-18-07 Scale Drawing This is a three part activity. Part 1 – Scale Drawing of the Board This part should be done together as a class. Step 1: Define scale drawing for the students as a drawing that is similar to the actual object. (Define similar figures if necessary.) Step 2: Choose an object in the room to measure. We used the bulletin board. Have some students measure the length and the width of the board in cm. Write down these measure