+ Td I: hoan thanh bang 1. 2.
+ Td 2 : hoan thanh bang 2, 3. + To 3: hoan thanh bang 3,4, + To 3: hoan thanh bang 3,4, + Td 4 ; hoan thanh bang 5, 6.
(Tat ca cac nhdm chuin bi dap an cho phin cau hdi trie nghiem)
III. HOAT DONG DAY - HOC 1. Kiem tra 1. Kiem tra
- GV kiem tra phin chuin bi ciia HS.
- GV luu y: HS cd the vie't bai bing giay khd Ao hay so dd ghep...
2. Trong tam
HS thao luan thdng nhit kie'n thiic co ban.
3. Bai mdi
GV neu yeu ciu ciia bai:
- Hoan thanh cac npi dung ciia bai hoc.
- Thao luin thdng nhit npi dung kie'n thiic thong qua su trinh bay cOa cac nhdm.
Hoqt dpng 1: He thdng hoa kien thurc
Muc tieu: HS hp thdng hoa dugc kidn thiic ca ban ve chuyen hoa vit chit va nang lugng d dpng vat va thuc vat.
Hoqt dpng cua GV
- GV yeu ciu HS ttao ddi, trinh bay cac ndi dung da chuan bi theo thii tu SGK trang 87.
• GV didu khidn boat dpng eua cac nhdm.
• Sau tiing npi dung nhdm ttinh bay, GV cin danh gia hoac ggi y dd HS nhd ki^n thiic (ne'u cin).
- Kei thiic hoat dpng 1, GV dua ra nhan xet, eho didm nhdm boat dpng tdt, kha nang khai quit hoa kidn thiic tdt va trinh bay vin de logic. Tuy nhien, GV cin nhic nhd nhdm chua tich cue, dpng vien nhdm ye'u, hudng din HS tdm tit kie'n thiic.
Hoqt dpng cua HS
- Dai dipn ttaig.nhdm trinh
bay phin chuin bi cd thd dudi cac hinh thdc khac nhau nhu: Tren td giiy Ao, so do ghep hay so dd dpng...
- Sau mdi npi dung trinh
bay cua nhdm -> ldp thao luan thdng nhit y kidn va danh diu vao cac y da chgn.
- Cic nhdm sda chiia hoan thipn kie'n thiic (neu cin) theo hudng din cua GV.
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