kumpulan 2- prject based learning

7/29/2019 Kumpulan 2- Prject Based Learning

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Membenarkan pelajar ijazah membuat pilihanpada topik, produk, atau persembahan.

Menghasilkan produk akhir dalam bentukpersembahan atau laporan.

Melibatkan pelbagai disiplin.

Berbeza-beza dalam setiap semester.


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Sebagai fasilitator dan bukannya pemimpin. Kejurulatihan dan model

Menekankan disiplin pelajar

Melebihkan penilaian berasaskan prestasi,kurang kertas dan pensil taksiran.


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PERMOHONAN KANDUNGAN KURSUS MEMBANGUNKAN KEMAHIRAN PENYELESAIAN

MASALAH

MEMBANGUNKAN KEMAHIRAN KERJAYA DANKEMAHIRAN

PENINGKATAN MOTIVASI PELAJAR


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Langkah 1: membentuk kumpulan Langkah 2: perkembangan idea

- merangka 4 lubang golf

- membentuk lukisan 2D Langkah 3: membentuk model 3D

Langkah 4: membentangkan projek untukdinilai


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3-D MODELS


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3-D MODELS


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DUNIA GEOMETRI


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12 gambar mesti dipaparkan pada poster(atau sebagai slaid dalam persembahanPowerPoint).

Penerangan pada teknikal gambar perludimasukkan dengan setiap gambar.

Sekurang-kurangnya, huraian ini mestitermasuk penjelasan matematik, anggaran

saiz dimensi, dan penyenaraian di managambar itu diambil.


15/21

8 in

13 in

4 1/2 in

The size and shape of the box

is determined by the shoes.The boxs length is

determined by the shoes

length and the height is

determined by the shoes

width. The width of the boxis a little less than 2 times the

height of the shoes.

You can see that the shoes pack nicely inthe box because the two shoes arecongruent and pack into the box withrotational symmetry.

My brother got a new pair of shoes and the boxthey came in is a rectangular prism.

PHOTO LOCATIONS: in my brothers room.


16/21

3 1/4 in

8 in

13 in

There are many purposes to the packaging of things like cereal. Theinner plastic package keeps the small cereal pieces together (and alsokeeps it fresh and provides a pocket of air for protection). Then, theouter rectangular box is designed to protect the inner package and tostack together well on the store shelves.

This box, which contains breakfast cereal, is a right,rectangular prism. The cereal is in a bag and the volume

of the bag is less than the volume of the box.

PHOTO LOCATIONS: in our pantry.


17/21

15 3/4 in

4 7/8 in

6 x 2 5/8 in = 15 3/4 in

2 x 2 5/8 in = 5 1/8 in

5 3/16 in

2 5/8 in

4 3/4 in

The width ofthe box is justa little largerthan thelength of the

Coke can (acylinder); itsheight is twicethe cansdiameter. Theboxs length is

just a littlelarger than 6times thediameter ofthe can.

Height: 4 3/4 in

Diameter: 2 5/8 in

Size of 12 Coke cans:

Size of the Coke can:

This box, which contains a dozen cans of Coke,is a rectangular prism.

PHOTO LOCATION: in our basement fridge.


18/21

Other objects that are

cylindrical also pack in a

hexagonal pattern inside acylindrical container. If youlook at the cross section, thecylinders look like circles.When the cylinders packhexagonally, the circlesoverlap and fill in more

space.

11 in

2 in

The container is a rightcylinder, which holds longmatches. The cylinders

diameter is large enough tohold about 50 matches; itsheight is the length of thematches. When the containerwas full of matches, the

matches packed together in ahexagonal pattern.

PHOTO LOCATIONS: by our fireplace.


19/21

2 1/2 in

5 in

2 1/4 in

THE PROBLEM: what is the mostefficient way to package sphericalobjects?


20/21

The volume of the smallest cylindricalcontainer is 12.5 r3. The volume of thesmallest rectangular box is 16r3. Theempty space in the cylindrical container is4.12 r3 and the empty space in therectangular box is 7.62 r3.

CONCLUSION: A cylindrical containerwould use less material to pack two balls

than the smallest rectangular box.

The surface area of the cylinder is31.4 r2 and the surface area ofthe box is 40 r2.


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kumpulan 2- prject based learning

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