Mate 6.4 La serpiente positiva

Introduction to Positive Snake Concept

Overview of Materials Needed

• The presentation introduces a method for teaching children simplification in addition, specifically targeting sums that reach tens. It requires:

• A red cloth as the working surface.

• A red box containing five complete sets of stairs numbered from 1 to 9, totaling 25.

• A black box with a white lid containing inverses from 1 to 9, where numbers are colored black up to 5 and transition to white starting at 6.

Teaching Methodology

• The instructor explains how to set up the materials and engage the child in learning:

• Use a counter and explain that they will create a "colorful snake" which will eventually transform into a "golden snake."

• Emphasize that initial pairs of beads must sum directly to ten (e.g., combinations like (10,9), (10,6), etc.).

Counting and Transforming Beads

Process of Counting

• As the instructor counts out loud while placing beads on the mat:

• They demonstrate counting sequences such as "12,34" and continue until reaching higher numbers.

• The goal is to illustrate how many beads remain after certain operations are performed. This helps reinforce understanding of addition through visual representation.

Result Interpretation

• After counting, the instructor summarizes results by stating totals like "10,20,30," leading up to larger sums.

• The concept of using golden or black-and-white beads allows children to visualize their progress in counting and addition effectively.

Final Steps in Learning Addition

Reinforcement Through Removal

• The instructor emphasizes the importance of returning any removed black bead back into its place if it was previously counted towards an operation.

• This reinforces memory retention regarding what has been counted versus what remains pending for future calculations.

• They conclude with an example showing how removing one bead affects total counts while ensuring clarity on remaining units still needing attention.

Conclusion on Positive Snake Technique

• The session wraps up by reiterating key concepts learned through this interactive method involving physical manipulation of objects (beads).

• Children are encouraged to remember their progress visually through these tangible representations during their learning journey.