A010  Long Red Rods

Materials:

• Ten red rods of the same square cross-section, varying in length from one decimeter (10cm) to one meter (100cm).

• Each rod increases in length by one decimeter.

Preparation:

• This is an individual exercise, conducted on the floor using a floor mat.

• (Note: Work cycle to be observed.)

Presentation:

1. The Directress first demonstrates how to carry the rods to the floor mat.

2. For the shortest rods, use one hand to place them on the floor mat.

3. For longer rods, hold them vertically with two hands, grasping them in the middle.

4. Place all the rods randomly on the floor mat.

5. The Directress then demonstrates how to build a stair:

• Start with the shortest rod and proceed to the longest.

• Select a rod and place it in front of the child on the mat.

• Use two fingers to feel the length of the rod by running them along its length.

• Build the stair by placing each rod just below the previous one, using both hands, one on each end. (If the child struggles to hold the longer rods this way, allow them to hold them in the middle with one hand.)

• The Directress may use the Three Period Lessons to teach the child "Long and Short."

• Return the rods to the shelves, starting with the longest and ending with the shortest.

Points of Interest:

• If the child experiences difficulty, begin with three or four rods:

1. The shortest ones.

2. The longest ones.

3. Alternate rods.

• The sense of sight is most beneficial in discovering chance errors, such as rods out of place.

• The long rods teach the concept of length.

• Note: Meters and decimeters are not part of the language used at this stage. These standard measurement units will be introduced later.

Purpose:

• Develop the child's visual and muscular perception of dimension.

• Develop the child's coordination of movement and fine motor control.

• Indirectly prepare the child for mathematics by providing experiences in comparison, grading, and seriation with different lengths.

• Provide basic language essential in mathematics.

Variations:

• Variation 1:

• When the child is competent at building the complete stair with all ten rods, invite them to do so.

• The Directress then demonstrates how to move the smallest rod to the end of each rod to show the length difference between each rod and the previous one, from bottom to top.

• Variation 2:

• Build the stairs with the rods lying down vertically.

• Stack the rods one on top of the other.

• Build a maze with the rods, starting with the shortest, and allow the child to walk through it for fun.

• Place rods in the middle of the previous one.

• Build a fan with the rods.

  
  

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