If possible purchase a class set (or at least a few for group work) of circular protractors. These help students understand that there are 360š in a circle. They are available through "Exclusive" (#2910 for about $2.50)
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!!!
Station #2
It is a good idea to purchase a few "good" geometry sets for centres. Making as many materials as possible available for the students is a good way to reduce disruptions in the class.
Station #4
Paper folding is a motivational strategy for geometry. Have paper folding books available for the students. To create more interest, save used interesting paper (colored - fluorescent etc.) throughout the year to use for all paper folding activities.
Station #7
Primary teachers often have pictures of road signs. Driver training instructors should also be able to supply with these.
Station #12
Art galleries and book stores often have calendars, wrapping paper, T-shirts etc. featuring the works of M.C. Escher.
Puzzles are available at stores like "Dufferin's" and other gaming stores.
Public libraries have books about this author. He has a very interesting life story. Most of his works evolve around mathematical concepts and geometric theorems and yet Escher himself admits to doing very poorly in mathematics.
A study of M.C. Escher integrates the visual arts strand in arts education with the geometry strand in mathematics. It also helps students realise the beauty of mathematics in the real world.
Station #20
Have students draw a vertical and horizontal line on their square before cutting. This will help them align the piece they have cut. It is important that the slide is straight up and down. Some teachers copy a grid on manila tag or have the students glue a grid paper on manila tag before starting.
Station #21
Geometric shapes can be purchased from most companies. They come either in plastic or in wood. Collect boxes of various shapes. (Chocolates, Toblerone bars, OXO cubes, toothbrush boxes, cubic boxes (ornaments at card shops), hat boxes, cookie tins, etc.)
Many-sided dice come in many polyhedron shapes.
Station #22
Use centimetre cubes to make several constructions for this centre.
eg. 
Station #24
Provide several strips of different lengths. For longer ones use adding machine tape, pieces of wood such as baseboards or old hockey sticks, ribbon, wall paper boarders, old films, etc.
Station #27
At this grade level students only need to recognize that the circumference is about three times the diameter. Some will recognise and remember the value of "ö", however, it more important that they understand the concept and estimate their answers.
Station #29
Students will need to use the "flats" in this activity.
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