1. Kết nối tri thức với cuộc sống (Connecting Knowledge to Life)
Often involves identifying elements within a set. For example, given set BГ i 2 trang 9 ToГЎn 6 tбєp 1
as a set of odd natural numbers greater than 30, students must determine if specific numbers belong to that set. Understanding set notation symbols like ∈is an element of (belongs to) and ∉is not an element of (does not belong to). 3. Cánh diều (Kite) BГ i 2 trang 9 ToГЎn 6 tбєp 1