De Kiem Tra Chuong IV Dai So 8 Co Ma Tran

... > n. Chứng minh: 8m 2 > 8n 2Từ: m > n ; nhân 2 vế bất fơng trình với 8 ta đợc: 8m > 8nTừ: 8m > 8n ; cộng ( -2 ) vào 2 vế bất fơng trình ta đợc: 8m - 2 > 8n - 2cho 0,5 điểmcho ... n. Chứng minh: 8m 2 > 8n - 2Bài làmHọ và tên: .Lớp 8 Trờng THCS TT Bằng Lũng Ngày kiểm tra: / 4/ 2009KIểM TRA 45 Điểm Lời phê của Thầy, Cô giáo Môn: Đại số 8 Bài số 4 - Đề số II ... Họ và tên: .Lớp 8 Trờng THCS TT Bằng Lũng Ngày kiểm tra: / 4/ 2009KIểM TRA 45 Điểm Lời phê của Thầy, Cô giáo Môn: Đại số 8 Bài số 4 - Đề số I Đề bài I/ Phần trắc...

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... S: 11/10/2010G:13/10/2010Tiết 18: Kiểm tra chơng IA: Mục tiêu1. Kiến thức Kiểm tra một số kiến thức trong chơng nh. Hằng đẳng thức 2A = A, các phép ... độCẩn thận, trung thựcB: Chuẩn bịGiáo viên ra đềHọc sinh ôn tập các kiến thức trong chơng IC: Ma trận đềMạch kiến thức Nhận biết Thông hiểu Vận dụng TổngTNKQ TL TNKQ TL TNKQ TLĐiều kiên xác ... điểm)324322+)+=213321332+=1=Bài 4(2 điểm) ( )5322=+x 532=+x 0,5 điểm* 532=+x * 532=+x 22=x 82 =x 1=x 4=xVậy phơng trình có hai nghiệm là ...

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... trình có hai nghiệm : 1 21; 2x x= = b) (1.5đ) : = 1 + 8m Để phơng trình (1) có 2 nghiệm phân biệt 0 Hay 1+ 8m 0 m 1 8 c) (1.0đ): Theo định lí viét ta có : 1 2 1 21; 2x...

... phơng trình1 1 110x y+ = ( 1) 1 điểmI/ Mục tiêu - HS đợc kiểm tra kiến thức về chơng hệ phơng trình bậc nhất 2 ẩn. - Kiểm tra kỹ năng vận dụng qui tắc thế và qui tắc cộng để giải hệ phơng ... phơng trình:Hai ngời làm chung một công việc thì trong 10 ngày thì xong. Nhng khi làm chung đợc 8 ngày thì ngời thứ hai đi làm việc khác, còn ngời thứ nhất vẫn tiếp tục làm công việc đó trong ... nghiệm duy nhất, có vô số nghiệm, vô nghiệm. - HS có thái độ làm bài nghiêm túc, sáng tạo. II/ Ma trận đề CHủ ĐềNHậN BIếT THÔNG HIểU Vận dụngTrắc nghiệmTựluậnTrắcnghiệmTựluậnTrắc nghiệmTựluậnPhơng...

... của đa thức 5x2- 4x với đa thức x- 2 làA. 5x3 - 14 x2 +8x B. 5x3 + 14 x2 +8x C. x3 - 14 x2 + 8x D.5x3 - 14 x2 - 8x MÃ ĐỀ 02 ĐiểmLời phê của thầy giáoCâu 4:Kết quả nào trong ... 1,53 2,0Tổng 1 1,53 1,5 8 7,012 10,0Họ và tên: . . . . . . . . . . . . . . .Lớp . . . . . . . Thứ ngày ……… tháng …… năm 200… BÀI KIỂM TRA CHƯƠNG 1 Môn ĐẠI SỐ 8 Thời gian : 45 phútI.Trắc ... MA TRẬN THIẾT KẾ ĐỀ KIỂM TRA CHƯƠNG 1 LỚP 8 Nhận biết Thông hiểu Vận dụng TổngTrắc nghiệm Tự luận Trắc nghiệm Tự luận...

... Chuẩn bị đề bài; HS: Chuẩn bị giấy làm bài kiểm tra, nhápIII. Kiểm tra: Kiểm tra một tiết IV. Tiến trình bài giảng: Phát đề cho HS rồi HS làm bài. MA TRẬN ĐỀ :Chủ đề cơ bản Nhận biết Thông hiểu ... Bài so n đại số 9 – GV: Dương Thị ThủyNgày so n : 3/11/2007 Tiết 19 KIỂM TRA MỘT TIẾTI. Mục tiêu: Qua tiết này HS được : - KT: củng ... 53 8 5 2 + ÷ ÷ ; B. 17 ; C. 25; D. Một kết quả khácCâu3: Biểu thức3 5 3 53 5 3 5− ++ − có giá trị là: A. 3; B. 6; C.5 ; D.5− Câu 4: Cho a ≤0. Tính 2121 16225 81 a+....

... chia hết cho 2n + 1 Tr×nh bµy s¹ch, ch÷ viÕt râ rµng : 1®iĨm§Ị KiĨm tra Mét tiÕt §¹i sè 8 §Ị KiĨm tra Mét tiÕt §¹i sè 8 §Ị sè 1I . Trắc nghiệm (2đ)Hãy chọn chữ cái đứng trước câu trả lời ... §Ị KiĨm tra Mét tiÕt §¹i sè 8 §Ị sè 2I . Trắc nghiệm (2đ)Hãy chọn chữ cái đứng trước câu trả lời đúng cho các câu hỏi từ 1 đến 4 1 . Kết quả khai triển của ( 2m – 3) 3 là:A . 8m3 – 27 ... khai triển của ( 2m – 3) 3 là:A . 8m3 – 27 B . 6m3 – 9 C . 8m3 – 24m2 + 54m -27 D . 8m3 -36m2 +54m -27II . Tự luận (8 ) Bài 1(1đ) : Rút gọn biểu thức : ( x – 3 )3 – x ( x +...