Greater Than, Less Than

Comparison is a fundamental mathematical skill. Using concrete materials makes the abstract symbols meaningful and intuitive.

• Framework: Montessori
• Unit: Mathematics
• Learning area: Number Concepts
• Level: Ages 4-6

Objectives

• Compare two quantities
• Use comparison symbols
• Build relational thinking

Materials

• Golden Beads or bead bars
• Greater than/less than symbol cards ( <)
• Numeral cards
• Work mat

Instructions

1. Build two quantities with beads (e.g. 24 and 37). 2. 'Which group has more?' 3. Introduce alligator symbol: 'The hungry alligator eats the bigger number.' 4. Place between quantities. 5. Read: '37 is greater than 24.' 6. Practice with various pairs. 7. Introduce = for equal quantities.

Educator tip

The alligator mouth always opens toward the bigger number. This mnemonic works wonderfully for young children.

Assessment

Child compares quantities and uses symbols correctly.

More from Mathematics

• Ordering Numbers to 100
• Number Bonds to 10
• Doubles and Near Doubles
• Making Ten Strategy
• Measuring Length with Non-Standard Units
• Measuring with Rulers
• Weighing and Comparing Mass
• Telling Time: Hours and Half Hours