• What subjects do you have on Wednesdays?
  On Wednesdays, I have Math, English, Science, and P.E.
• When do you have English?
  I have English on Monday and Wednesday.
• What’s your favourite subject?
  My favourite subject is English.
• Why do you like that subject?
  I like English because it is interesting and helps me communicate with people.
• Were you in the countryside last weekend?
  No, I wasn’t in the countryside last weekend. I stayed at home.
• Where is your school?
  My school is in the city near my house.
• How many classrooms are there at your school?
  There are about twenty classrooms in my school.
• Which place/room do you like most in your school?
  I like the library the most because it is quiet and comfortable.

• Where is your school? How do you go to school?
  My school is near my house. I go to school by bike.
• What does your father look like?
  My father is tall and has short black hair. He wears glasses.
• What does your mother do?
  My mother is a teacher. She works at a local school.
• How do you help at home?
  I help at home by cleaning my room and washing the dishes.
• Where were you last weekend?
  Last weekend, I was at home with my family.

School days in the past were simple but memorable. School time usually started early in the morning, and students wore neat uniforms. Subjects such as Maths, Literature, History, and Geography were taught with chalk and blackboards instead of modern technology. After school, leisure time activities were very basic. Children often played football, skipped rope, or helped their parents at home. During the summer holiday, students enjoyed long days without homework and spent time swimming in rivers, flying kites, or visiting relatives in the countryside. Most students went to school on foot or by bicycle, which helped them stay healthy and independent. These school days left many warm and unforgettable memories.

1. Đơn vị đo

• Chiều dài: mét (m), xăng-ti-mét (cm), mi-li-mét (mm), ki-lô-mét (km)
• Khối lượng: ki-lô-gam (kg), gam (g)
• Thời gian: giây (s), phút (phút), giờ (giờ)

2. Dụng cụ đo thường dùng

• Đo chiều dài: thước thẳng, thước dây, thước mét
• Đo khối lượng: cân (cân đồng hồ, cân điện tử, cân đòn…)
• Đo thời gian: đồng hồ treo tường, đồng hồ đeo tay, đồng hồ bấm giây

3. Nhiệt độ

• Nhiệt độ là số đo độ “nóng” hay “lạnh” của vật.
• Dụng cụ đo nhiệt độ là nhiệt kế.
• Đơn vị thường dùng: độ C (°C).

4. Ước lượng trong một số trường hợp đơn giản

• Ước lượng chiều dài
• • Chiều dài cây bút - 15 cm
  • Chiều cao bàn học - 70–80 cm
• Ước lượng khối lượng
• • Quả táo - 100–200 g
  • Cặp sách có sách - 1–2 kg
• Ước lượng thời gian
• • Một tiết học - 45 phút
  • Đánh răng - 2–3 phút
• Ước lượng nhiệt độ
• • Nước đá - 0°C
  • Nhiệt độ cơ thể người - 37°C
  • Thời tiết nóng mùa - 35–38°C