NOTE: Check Addison-Wesley catalogues for ready-made job cards for many of the manipulatives including geoblocks. Exclusive also produces new binders every year. The Book Bureau will soon stock many of these resources. They are often cheaper there and there are no shipping charges.
	Getting ready . . .
		Please note: To save on the cost of photocopying, the grid paper and the triangulation paper for the following stations is provided at the end of these teacher notes. Add the station number on your master before photocopying. STATIONS: 15, 17, 19, 20, 21, 22, 23, 24, 25 Station #1 Students should have their own geometry sets. Encourage them to purchase good instruments. It is important that compasses sc;rew or lock into place because they get frustrated when their compasses constantly open as they use them. For classroom management: have a few geometry sets available to use at stations. This limits the walking around and students having to borrow from others. You also ensure that good instruments are used for the assessment. Where students cannot purchase their own set slowly purchase a few from year to year until you have a class set or at least one for every pair of students.   Station #3 Circular protractors are recommended to develop the concept of 360 degrees; however, the semi circles also work if teachers assist students in determining which of the dual scales to use. Students should use the 90š angle as a benchmark.   You can "make" protractors by photocopying an original one, cut and paste it several times on sheet of paper and then making an overhead transparency. Individual protractors can then be cut out for use. You may have to experiment with the first copy until the numbers are clear by adjusting the lighter to darker feature on your photocopier. A very inexpensive way to make protractors!!! Miras can be purchased from the Book Bureau. For these stations you will need about 6; however, it is one manipulative that should be available to all students. I recommend a class set even if students work in pairs or in groups because students do not want to waste time waiting for the Miras. Class sets can be shared among two to three teachers.   Station #15 Plastic pentominoes are available from Addison-Wesley and Exclusive. You may want to start by purchasing a few sets per year until you have a class set. The binder from Addison-Wesley listed in the resources (first page) has many activities for grade 9.   Station #19 A pantograph is an instrument constructed of pins and rods in the form of a collapsible parallelogram. Drafting engineers or designers use the instrument to enlarge or reduce a diagram. A simple model of a pantograph is a collapsible gate. A diagram of a pantograph that can be made from pins and rubber bands appears in the PDF version of these teacher notes.   Station #34 Make sure that you provide a variety of sizes so students have plenty of data to draw a conclusion. Return to Math Central To return to the previous page use your browser's back button.