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New pedagogies for deep learning

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7 Mengenal pasti & mengawal pemboleh ubah.pptx

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Kepentingan kemahiran proses sains kepada murid

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Kepentingan Kemahiran Proses Sains Kepada Murid (hayati,atikah, aten)

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rujukan: jpwpkl.moe.gov.my

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Reka cipta bekas pengembangan doh (Bikar)

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Reka cipta bekas pengembangan doh (Bikar)

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Dihasilkan kerana masalah yang sukar untuk dibersihkan jika dibuat di dalam bikar kaca dan mengatasi kekurangan bikar di sekolah

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Dihasilkan berikutan untuk menjaga keselamatan murid ketika melakukan ujikaji

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Guru yang dilantik sebagai SU aset akan mendapat kursus spt ini utk menambah ilmu

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Kegunaan: untuk menjalankan fungsi seperti Penunu Bunsen di Makmal Sains bagi menggalakkan murid untuk menjalankan penyiasatan dan mengatasi masalah Penunu Bunsen yang tidak diselenggara.

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Kegunaannya untuk menuras bahan pepejal daripada cecair. Contohnya, penurasan air garam.

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Reka cipta silinder penyukat berpemegang

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Reka cipta silinder penyukat berpemegang

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Dihasilkan bagi memudahkan murid untuk membawanya kerana mempunyai pemegang dan membaca aras isipadu kerana senggatan yang berwarna serta menjimatkan kawasan penyimpanan kerana boleh digantung. Silinder penyukat ini juga tidak terlampau tinggi bagi memudahkan murid menuang cecair isipadu

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Digunakan untuk membandingkan jisim antara dua objek dan mengukur keseimbangan jisim objek. Ia juga boleh digunakan oleh murid berkeperluan khas (masalah pembelajaran) dengan mudah.

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Piring Petri ini lain daripada piring petri yang lain dan ini merupakan hasil inovasi saya sendiri yang menambil inspirasi daripada pan pizza. Mengapa anda perlu bersusah payah untuk menggunakan 4 piring petri sedangkan anda boleh sahaja menggunakan 1 piring petri saya untuk mengendalikan 4 bahan uji kaji? ;) Piring petri belah 4 ini juga senang dikendalikan kerana hanya diperbuat daripada plastik. :D

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Boleh menyukat pelbagai cecair kerana berfungsi seperti silinder penyukat asal dan boleh menyukat dengan tepat kerana mempunyai permukaan yang licin. Silinder penyukat ini juga lebih kecil dan mudah disimpan. Tidak mudah pecah kerana diperbuat daripada plastik

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Kegunaan: Penggunaannya sama seperti spatula biasa cuma ia diperbuat daripada bahan kitar semula dan kosnya lebih rendah

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Projek 'Pengecutan dan pengembangan bahan'

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Projek 'Pengecutan dan pengembangan bahan'

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Projek ini bertujuan memberi mind set kepada murid bahawa uji kaji boleh dijalankan sendiri di rumah (pembelajaran bermakna) menggunakan bahan-bahan kitar semula yang mesra sumber.

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Alat ini dibina untuk menguji sifat gas;mempunyai isipadu. Murid boleh meneroka dengan membina alat sendiri di samping akan membantu untuk menemui pembelajaran secara inkuiri. Jadi dengan ada alat ini dapat mengurangkan masalah pelajar tidak dapat melakukan eksperimen disebabkan oleh kekangan alat radas dan faktor keselamatan.

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Kertas litmus ini mempunyai fungsi yang sana seperti kertas litmus biasa. Kertas litmus ini diperbuat daripada bahan-bahan semula jadi dan amat mudah dibina.

Bahan-bahan pembuatan kertas litmus:
1. Bunga raya/bunga ros
2. Kertas A4
3. Cuka
4. Soda bikarbonat
5. Segelas air

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Video penggunaan kertas litmus DIY di sekolah 

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Video penggunaan kertas litmus DIY di sekolah 

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Bahan Mesra Sumber, Kelalang Kon 3R

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Blog ini diterbitkan untuk memuatkan info tentang kemahiran proses sains buat rujukan para guru dan murid yang berminat. Sekiranya ada pertanyaan, jangan segan untuk menghubungi saya melalui emel.

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Pelajar perlu menonton demo ini untuk persediaan kuliah 17/6/2019 dan tutorial 19/6/2019

Pembetulan: alat pemotong tersebut adalah KIKIR segi tiga, bukan pahat. Adoi.... maafkan saya hihi... In english KIKIR is FILE

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Dibuat oleh pelajar PISMP Sains kursus SCES3073

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Dibuat oleh pelajar PISMP Sains kursus SCES3073

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Ellyza Karim dan Rosmawati Shaharuddin (2015). Pengurusan makmal sains dan sumber (Sains Pendidikan Rendah). Petaling Jaya: Sasbadi.

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Facebook

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Elly Hj Karim is on Facebook. Join Facebook to connect with Elly Hj Karim and others you may know. Facebook gives people the power to share and makes the world more open and connected.

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di SK Sendayan, Negeri Sembilan

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Salur kaca untuk pengumpulan gas oksigen/ karbon dioksida

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Botol kaca boleh diimprovisasi menjadi bikar dan corong turas

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Menggunakan air panas

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Bottle Cutting - What You Need To Know

There are countless ways to cut or to break a glass bottle or jar and having tried them all I thought it was about time I shared my favourite method with you. This method is fool proof. Its quick and easy and leaves you with the cleanest cut.

There are some more convoluted and elaborate methods out there for cutting glass bottles but you really don't need to be putting anything in the oven, blow torching anything, heating wire, string or putting bottles into freezers, so cast those ideas to one side.

First I'll explain in detail, along with images, my favourite method that anyone can do at home with just one tool and then go on to show you how to smooth off the edges.

If you're reading this then I'm sure you have many intentions of what wonderful things you'll be doing with your recycled wine and beer bottles once you've cut them, but if you need some ideas I'll add some at the bottom of the article with which to inspire you.

Firstly, lets get our bottle prepared by removing the labels.

Removing the Labels From Glass Bottles.

Some labels will peel off easier than others so lets go through the steps.

1. Submerge the bottle in a sink with hot water and leave for 10 minutes. With this method some labels will just peel off nice and easily.

2. Some labels will only be softened with the above method so in this case scrape what you can off with a knife and then use a kitchen scrubbing brush or wire brush to remove the rest.

3. If there's still sticky residue left that won't come off with your kitchen scrubbing brush, rub a little nail varnish remover or lighter fluid onto it and this will come away.
Helpful Note: Labels can be used as a cutting guide if they are in the place where you want the break to be. Leave them on and remove them later once you've cut the bottle.
Since publishing this article someone has written in to tell us his method of removing the labels from bottles. I've not tried it yet, but this sounds good:

1. Use a paste of equal parts olive oil and baking soda.

2. Rub the paste onto the label

3. Leave for a few minutes then scrub off. The label and glue will just fall apart.

Cutting a Bottle with a Glass Cutter and Water

There are many varieties of cutters but a regular dry wheel cutter will suffice. (See further on in this article to read about oil cutters)

A good glass cutter is very affordable and if you buy one with a tungsten carbide wheel such as the well known brand ' Toyo' it will last you for years and ensure a clean score line each time.

What You will Need:

1 x hand held Glass Cutter (the brand 'Toyo' are an exceptional glass cutter)

Masking tape

Boiled water

Running Cold water tap

Rubber glove (to hold the bottle whilst pouring boiling water)

Buy the TOYO Glass Cutter here
Step 1. Mark Your Cutting Line

Place a strip of masking tape around the glass bottle where you wish to cut. This will act as your guide and ensure you have a neat circle that meets around the bottle.Make sure that where the ends of the masking tape meet up that you have a neat straight line, this will help ensure you don't have a jagged cut.
Helpful Note. As I mentioned earlier, labels can be used as a cutting guide if they are in the place where you want the break to be. Leave them on and remove them later once you've cut the bottle.
Step 2. Score Your Cutting Line

1. Rest your arm on something that will elevate it slightly such as a folded up towel. This helps to keep your hand steady and at a good angle

2. With your Toyo glass cutter, score the glass bottle along the line of the masking tape all the way around the bottle. ( I sit the edge of the cutter up against the edge of the masking tape)
Helpful Note: Try to make as continuous a cut line as possible as this will help keep the cut edge as neat as possible and save you having to file or deburr too much to smooth off the edges.
Step 3. Hot & Cold Water

1. Take your bottle to the running cold water tap and whilst wearing your rubber glove on the hand you hold the bottle with, pour a small trickle of boiling water over the score line, rotating the bottle around as you do so. (you'll notice in the above image I was not wearing a rubber glove - very naughty. As my Mum used to say: Do as I say, not as I do!)

2. Next, run the bottle under the cold tap whilst rotating the bottle.

3. Repeat this process, alternating between the hot water and the cold water. When you start to hear the bottle making popping or cracking sounds it's about ready to fall away. This process takes a few minutes and you'll be left holding a piece of bottle in each hand.

4. Job done.
Helpful Note 1. Some people find It helpful to rest the bottle in a 'V' shape apparatus if you can find one, or indeed make one if you're handy in the wood shed. This helps rest the bottle steady and you can turn the bottle easily. Bottle cutting jigs can also be bought that come with a glass cutter fixed, however these do not always work very well, or for very long. Helpful Note 2. If you wish to cut towards the very bottom of the bottle, keep the bottle standing upright, rest your cutting hand on something that will elevate your hand and simply score the line whilst rotating the bottle at the same time.
Step 4. Smooth the Edges of your Cut Glass Bottle

There are many ways to smooth the edge of your bottle and it all depends how much or how little you want to spend, how polished you want it to look and what tools and equipment you may already have that you can use.

To heat the glass enough in order to re-mould the edges and really give a professional finish will take the use of a kiln so the following cold-working options are just simple methods with which to polish your edges without firing.

At the bottom there is a brief summary of how I polished these particular bottle edges seen here in this article by simply using a large 600 grit diamond file.
For removing any snags and to even out the edge:
or if you have these items at home they will also work well.

Sanding bands in a rotary tool, 320 grit. (A grit lower than this i.e 60 grit, will be too coarse)

3mm diamond drill bit or a 4mm diamond cylinder burr in a rotary tool (only use for bumps and snags and use slowly and carefully. Also use for shaping the edge of the glass. i.e scallop shaped or wavy edge)

wet and dry sand paper 150-600 grit

Sander attachment for a grinder

For further fine polishing (optional): Using the Diamond File:
Use the file wet and gradually file away until you reach the smooth surface you're looking for. It makes a painful noise at first like nails down a blackboard, but bare with it! It eases off.

I used a square shaped, large diamond 600 grit file. Any shape such as a triangle, flat or half round will work as well. For small glass drinking bottles or beer bottles I find a large file will file both sides at once because it's long enough. This is great because it means I get even sides and both sides get filed down at the same time. Handy!

Personally speaking, using a diamond file is usually enough but if you want to polish up further you can try any number of the other options I've mentioned above. The black silicone polisher used in a rotary hand tool works very well.

Any lumps and bumps along your edges can easily be removed by using a diamond cylinder burr or a 3mm diamond drill bit. Do this before you file or polish. Go carefully with this though, it is very abrasive and if you're not used to using burrs in a rotary tool, one slip could cause your newly cut glass bottle to be scratched and ruined.

As with all these options, they are abrasives so be careful to stick to the edge and if you're using a rotary tool with any of the attachments be especially careful to keep a steady hand and don't go over the edges. It sounds obvious, but I've done it countless times myself and then had to start all over with a new glass bottle. (it may mean you get to enjoy another bottle of wine or beer however - there's always an upside)
Helpful note 1. It is better to use the finest abrasive you can and grind away for longer rather than begin with an abrasive that is too coarse. You will find little 'bleed cracks' all the way around the edge if the abrasive is too coarse. Helpful note 2. If the tool or attachment you are using is made of diamond grit i.e diamond file, diamond burr always use them wet.
Rather than smooth the edges off, why not try scalloping the edges or making them wavy. Any number of diamond burrs in a rotary tool will do this for you but I like to use a 3mm diamond drill bit for this.
Safety Precautions
It goes without saying that water and electricity do not mix so please be extra vigilant if you are using a rotary tool near water, preferably in a flexible shaft. Always wear goggles, face mask and long sleeves.
To oil or not to oil, that is the question.
There are many traditionalists who like to use oil with their glass cutters. With the advanced tungsten carbide wheels that are now used in glass cutters, oil is no longer necessary. The carbide cutting blade or wheel ensures you end up with a clean and neat cut and because tungsten carbide is so durable it won't dull easily.

If you still feel like you would like to use oil it's best to pour a small amount onto a piece of cloth in a bottle lid or small container and dab the cutter into it before using. However, it is really not necessary.

Cutting a shape into a glass bottle

The best method to cut a shape into a glass bottle is to first drill a hole in the bottle with a diamond core drill and then use a diamond cylinder burr or similar shape to grind away from the inside of the hole outwards in the shape you wish to make.
See our infographic here on how to drill a hole in a glass bottle
Recycled glass bottles can be turned into many creative and useful items, here's a few ideas for you:

wine bottle bird feeders

tumblers decorated with mosaic tiles or engraved

wind chimes

lanterns, lamps and candle holders

vases and posy pots

water carafes

pen pots

storage jars

tooth pick holders

The above work from left to right is of a recycled water carafe and tumbler by re-modern.com, slices of cut wine and beer bottle light strand by Jonas Merian. Bottom row is a recycled wine bottle candle by Lina Smith, engraved cut wine bottle wind chime by Stewart Neal and decorative glasses by Christine Majul on flickr.

Trouble Shooting Tips

Crack lines around the top of the bottle may form due to a number of different reasons. If you have a bottle you can't use because it has broken in the wrong place, don't bin it, use this bottle to practice with. Below, I've listed some of the potential reasons for cracking and how to avoid it.

1. If you can, try to make the score line continuous. Where you stop the line and start again is where you may find the cracking. This is easier to do if you have some way of turning the bottle whilst scoring. Many people make their own wooden 'jig' which is essentially two pieces of wood that form a V channel in the middle that the bottle sits in. This way you turn the bottle with one hand and do the score line with the other. I don't use this method personally but you may find it helps.

2. Practice with the water temperatures - if the water is too hot and too much hot in one go, your break will occur too soon and this can cause cracking

3) Don't be tempted to score deeper, this shouldn't make any difference, but you need to apply enough pressure so you can see the score line clearly. Again, practice on a broken bottle to find the right pressure.

4) Try a different type of bottle - this might sound obvious, but the best bottles I find for my work are small, clear glass, water bottles. The glass seems to be much, much thinner than other bottles and I get a clean cut every time. Red or white wine bottles will differ in the thickness of the glass so you can never tell whether or not the bottle is going to be an easy one to break.

Helpful Note: Remember you will never get a completely smooth break, you will always need to file down some sharp edges or snags with a diamond file.

Good idea: Instead of wasting the great work you've done, how about trying to decorate the lip of the cut bottle with ribbon or lace, or glue on beads, pieces of driftwood, sea glass and very small pebbles using a string adhesive such as G-S Hypo Cement Adhesive.

This fabulous creation by Louise Nelson Glasswork of Glassdaft is a super example of how creative and artistic you can be with some empty glass bottles.
Recycled bottle with copperfoil stained glass, fusing and lampworking. 2011
Once again the tools you will need are:

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Bottle Cutting - How To Cut A Glass Bottle

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Bottle Cutting - What You Need To KnowThere are countless ways to cut or to break a glass bottle or jar and having tried them all I thought it was about time I shared my favourite method with you. This method is fool proof. Its quick and easy and leaves...

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boleh dibeli di kedai

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Sila klik untuk menerokai alam pengawetan haiwan, tumbuhan, fosil & serangga

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Elly Hj Karim is on Facebook. Join Facebook to connect with Elly Hj Karim and others you may know. Facebook gives people the power to share and makes the world more open and connected.

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Anjuran JK surau An-Najah, Taman Universiti, Kajang

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Anjuran JK surau An-Najah, Taman Universiti, Kajang

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Sila klik untuk gambar-gambar aktiviti KPS

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Elly Hj Karim is on Facebook. Join Facebook to connect with Elly Hj Karim and others you may know. Facebook gives people the power to share and makes the world more open and connected.

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Visit to Zoo Melaka

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Tujuan: Pengumpulan Gas

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integrated SPS

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Many types of steel files

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Class of 2022

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future science teacher with glass work skill, IPG product 👩🏻‍🏫🧑🏻‍🎓🧑🏻‍🏫👩🏻‍🎓#fypシ #ipgkpt

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@dr_elly2020
future science teacher with glass work skill, IPG product 👩🏻‍🏫🧑🏻‍🎓🧑🏻‍🏫👩🏻‍🎓#fypシ #ipgkpt
♬ It's a Beautiful Day - Evan McHugh

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Nice work!

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Beautiful!