Simple Math Materials made from Plywood

How To Make Them

Matching Quantity

and Numeral - Lacing Cards - Sequence 1-10

Procedure for making simple plywood

learning materials

1. Mark and cut the plywood pieces

2. Sand the surface and edges of the pieces

3. Give a coat of varnish to seal the pores

4. Transfer the pattern with a carbon paper

5. Paint the design, let it dry well 6. Varnish 7. Cut the puzzle pieces . For

lacing cards, first drill the holes, then cut

8. Sand the cuts and holes 9. Varnish again back and front,

one at a time, let it dry before you varnish the other side.

Items needed : • Plywood • Measuring tape, pencil • Hand saw • Sandpaper 60 and 100 grid • Brush 1or 2 inch, • Varnish, tin container , kerosene, rag • Pattern, carbon paper, cloth pegs,

pen • Oil paint green, small art brush, • or green whiteboard marker, or good

colored pencil • Fret saw , blades, • power drill, drill bit 4or 5 mm, clamps

Measure the size of plywood boards, A4 ( 31cmx21cm) and draw cutting lines

For the number sequence a strip (14cm x 64cm) works better

Cut!

Sand: Use sandpaper 60 grid to smoothen the edges where necessary. Use sandpaper 100 for the surface , corners and edges.

Varnish: Apply 1 coat of varnish to seal the pores. It might be necessary to dilute the varnish with a bit of kerosene. Use a 1 Inch brush and only insert the tip of the brush into the varnish. Avoid dripping. With your strokes, follow the growth direction of the wood. Have a container with kerosene ready for cleaning the brush, and a rag too. Varnish one side at a time, let it dry, then the other side of the board.

Choose the paper pattern for the item you want to make, use one of ours from the Pattern Book, or make your own!

With a carbon paper transfer the pattern from the paper to the plywood.

Make sure the carbon side is facing the board. Cloth pegs can help with fixing the pattern while tracing. Trace the out lines. A pen works better for tracing than a pencil.

For coloring/ painting use oil paint, white board marker …

…or a very good quality

colored pencil ( with colored pencils the first coat of

varnish is not needed)

Then varnish to protect your design.

Use a fret saw for cutting . Then sand the pieces

For the fret saw it is important that the blade is inserted with the teeth pointing down. You can feel the difference when you follow the blade with your finger. If it feels smoother down than when coming up. Then the blade is inserted the right way .

For the lacing cards drill holes of 5mm before cutting . Fix the

board with clamps between two tables, and use a power drill.

Roll a small piece of sandpaper and use it for sanding the holes

Add another coat of varnish for the finishing