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Giant Sidewalk Chalks - Creative recipes - Educatall

Giant Sidewalk Chalks

(Do not use on chalk boards)



  • ¾ cups of hot water (but not boiling water)
  • Empty toilet paper rolls Approx: 1 ½ cups of plaster Paris
  • 2 or 3 tablespoons of food coloring or poster paint
  • Waxed paper
  • Wide adhesive tape
  • Spoon
  • Plastic container for mixing


  1. Cover one end of each of the toilet paper rolls with adhesive tape.
  2. Line the interior of the tubes with waxed paper to prevent the plaster from sticking to the sides.
  3. Pour the water into the plastic container and add the plaster Paris while mixing with the spoon. Add a small quantity at a time until the plaster no longer dissolves in the water.
  4. Mix thoroughly until a creamy texture is obtained. Add the paint or food coloring. Stir until the mixture is homogenous.
  5. Place the tubes, closed ends downwards, on a flat surface. Pour plaster into each tube. Tap the sides of the tubes to prevent air bubbles (which would result in holes in the chalk).
  6. Allow to dry for a day or two. Peel off the mould and use on asphalt or concrete. The chalk washes away easily with rain or running water.


The Educatall Team


A little bit of everything! Ideas to make transition periods smoother or to animate specific parts of the day!

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