Engage your Stage 1 learners in a hands-on mathematics lesson with this ready-to-use PowerPoint: "Investigating and Comparing Mass", aligned with NSM9 outcomes. Designed for students in Stage 1, this interactive lesson introduces the concept of mass through practical, real-world comparisons using hefting and an equal-arm balance.

What’s included:

• A structured lesson with clear learning intentions and success criteria
• Simple explanations of key vocabulary (e.g., mass, heavier, lighter, equal)
• Interactive examples comparing real-life classroom objects using marbles as non-standard units
• A real-life connection to everyday experiences (e.g., seesaws, shopping)
• A built-in extension challenge to stretch higher-achieving students
• Bright visuals and clear instructions ideal for whole-class teaching on an IWB or screen

Why teachers love it:

• Saves time with no prep required
• Promotes active participation and reasoning skills
• Supports curriculum-aligned teaching of mass, measurement, and comparison
• Encourages vocabulary development through repeated, purposeful use
• Easily adaptable for different levels and learning environments

Whether you're introducing mass for the first time or reinforcing key concepts, this PowerPoint helps you deliver a fun, hands-on, and educational experience for your learners.