Aiyoh, this one fun actually! Normally I just pakai jari-jari tangan (use fingers) with my kids, kunin 3 jari satu tangan, 5 jari satu tangan, then they tengok which side lebih banyak, so naturally they grasp yang 5 is more than 3. A few of us mums also guna benda-benda rumah je like toys, biscuits, or buttons, arrange dalam dua groups and let them visually compare, pastu suruh dia point yang mana pile lebih besar. Kids ni visual learners la, so once they nampak physically mana side has more, the concept "greater" dan "smaller" jadi senang saja!