Rotation ppt description
This PowerPoint is eight slides long and introduces one of transformation (rotation) to intermediate students. Slide #3 introduces the rules for rotation about origin in the counter-clockwise direction at three angles (90°, 180°, and 270°). In order to achieve a clockwise direction just reverse the rules for 90°, and 270°; the rule for 180° remains the same. I give a reference sheet that has the rules. Slide #4 illustrates the 270° and 90° are the same rotation. Some students and adults will still be confused. This can also be demonstrated with military drill movements. A “right face” (90° clockwise) is the same as three “left face” (90°+ 90°+90°=270° counterclockwise). Have a knucklehead preform the facing movements while you bark commands at them. Note: only do this if you have good classroom management and understand drill movements or you will look silly. Slide #5 shows that 180° is the same counter-clockwise or clockwise. My students really enjoy the exit questions. I pass out personal white boards one for two students, using their reference sheets they answer the questions. The clockwise questions are harder.
Note: My philosophy for slide shows. Long slide shows become very boring very quick. I use slide shows to model a concept. Because I teach the same lesson multiply times there are certain things I like to stress. If it is on a slide I don’t forget it. I like to use animations to hold the students attention. I normally will have a vocabulary slide for students to copy into their notebook. Hence the “white note taking icon” on the vocabulary slides. I generally will have two avatars in the bottom of the slide to guide the students through the slides. The avatars will ask questions to one another or corny jokes that students don’t understand. My students enjoy reading what is on the callouts of the avatars this allows for more interaction within the classroom. At the end of my slide show I like to have exit questions or a summary slide. If you purchase this please adapt it to your classroom. Last slide as my e-mail address, if you find errors regards how small please e-mail me and inform me so I can make corrections.