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Effective activities for training students in value estimation for Addition & Subtraction include: 1. Rounding numbers games before adding or subtracting. 2. Estimation jars filled with various items for students to guess totals. 3. Shopping list exercises where students estimate total costs. 4. "Estimation Station" where students guess sums or differences of displayed equations. 5.
The value estimation skill is vital for preschool students because it lays the foundation for critical thinking and problem-solving abilities. It helps them develop a basic understanding of numbers and their relationships, enhances their ability to make educated guesses, and prepares them for more complex mathematical concepts.
To test a preschool student's value estimation skills, present them with simple, tangible items like blocks or fruits in varying quantities. Ask them to guess the number of items without counting. Then, let them check their estimate by counting. This exercise not only evaluates their estimation skills but also reinforces counting and comparison concepts in a fun, interactive way.