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  • Thống kê

  • truy cập   (chi tiết)
    trong hôm nay
  • lượt xem
    trong hôm nay
  • thành viên
  • Dành cho Quảng cáo

    Chào mừng quý vị đến với Thư viện Bài giảng điện tử.

    Quý vị chưa đăng nhập hoặc chưa đăng ký làm thành viên, vì vậy chưa thể tải được các tư liệu của Thư viện về máy tính của mình.
    Nếu đã đăng ký rồi, quý vị có thể đăng nhập ở ngay ô bên phải.

    Bài 52. Cá

    Tham khảo cùng nội dung: Bài giảng, Giáo án, E-learning, Bài mẫu, Sách giáo khoa, ...
    Nhấn vào đây để tải về
    Báo tài liệu có sai sót
    Nhắn tin cho tác giả
    (Tài liệu chưa được thẩm định)
    Nguồn:
    Người gửi: Phạm Hữu Phước
    Ngày gửi: 10h:11' 19-03-2010
    Dung lượng: 12.9 MB
    Số lượt tải: 1384
    Số lượt thích: 0 người
    Môn: Tự nhiên và Xã hội




    Giáo viên: Nguyễn Thị Anh
    Trường Tiểu học Phan Đình Giót
    Nhiệt liệt chào mừng các thầy cô giáo về dự giờ lớp 3A
    Thứ năm ngày 11 tháng 3 năm 2010
    Tự nhiên và xã hội
    Kiểm tra bài cũ
    Cơ thể tôm và cua có những đặc điểm gì chung ?
    Là động vật không có xương sống.Cơ thể chúng được bao phủ bằng một lớp vỏ cứng.Chúng có nhiều chân, chân phân thành các đốt.
    Thứ năm ngày 11 tháng 3 năm 2009
    Tự nhiên và xã hội
    Kiểm tra bài cũ
    Tôm, cua thường được sử dụng để làm gì ?
    Tôm, cua thường sử dụng làm thức ăn.
    Thứ năm ngày 11 tháng 3 năm 2010
    Tự nhiên và xã hội


    Kể tên một số loài cá mà em biết ?
    Thế giới loài cá thật là phong phú!
    S/100;
    101

    - Bộ phận bên ngoài của cá gồm:
    Bài 52:
    - Cơ thể chúng thường có vẩy,
    Cá là động vật có xương sống,
    di chuyển bằng vây.
    đầu,
    mình,
    đuôi,
    vây.
    sống dưới nước,
    thở bằng mang,
    Thứ năm ngày 11 tháng 3 năm 2010
    Tự nhiên và xã hội
    Ích lợi của cá
    Cá là nguồn thực phẩm giầu chất dinh dưỡng, tốt cho sức khoẻ.
    - Cá góp phần mang lại nguồn lợi kinh tế cho gia đình và đất nước.
    Bạn ơi! ăn cá cần cẩn thận kẻo hóc đấy nhé!
    Cá vàng đớp bọ gậy

    Bài 52:
    Ảnh cá cảnh
    Thứ năm ngày 11 tháng 3 năm 2010
    Tự nhiên và Xã hội
    Nuôi cá bè
    Thứ năm ngày 11 tháng 3 năm 2010
    Tự nhiên và xã hội




    Cách đánh bắt cá
    Trò chơi: Rung chuông vàng
    1. Cá thở bằng gì?
    (mang)
    2. Cá thu sống ở đâu?
    (ở biển)
    3. Cá gì thông minh nhất?
    (cá heo)
    4. Kể tên các bộ phận bªn ngoµi của cá?
    ( ®Çu, v©y, m×nh, ®u«i)
    5. Cá gì được gọi là hung thần của biển cả?
    (cá mập)


    Trò chơi: Rung chuông vàng
    Xin chân thành cảm ơn quý thầy cô và các em học sinh!
    Kính chúc quý thầy cô luôn mạnh khoẻ, hạnh phúc và thành đạt!
    Chúc các em chăm ngoan, học giỏi!
     
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