ALAT PERAGA “KLINOMETER”

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Alat peraga ini memegang peranan penting selain pemilihan metode yang tepat. Alat peraga akan membantu siswa memahami konsep-konsep dan prinsip-prinsip matematika yang bersifat abstrak, maka proses pembelajaran matematika diperlukan bantuan penyajian materi yang brupa benda konkret, dimana benda konkret itu disebut alat peraga.

Tujuan pembuatan alat peraga

1. Merangsang minat dan perhatian siswa untuk lebih mempelajari matematika khususnya pengukuran tinggi benda.

2. Meningkatkan pemahaman konsep siswa pada pokok bahasan pengukuran.

3. Membuat pelajaran matematika lebih berkesan bagi siswa sehingga tidak mudah dilupakan.

Jenis Alat Peraga

Alat peraga yang digunakan adalah Klinometer. Alat peraga ini berfungsi untuk mempermudah pemahaman siswa dalam materi pengukuran.

Alat dan Bahan

n Alat :

v Palu

v Mistar

v Spidol

v Gergaji

n Bahan :

v Papan

v Triplek

v Paku

v Cat kayu

v Pipa

v Busur Derajat

v bandul

Gambar Alat Peraga

Cara Kerja

Misal tinggi benda yang akan diukur adalah tinggi pohon :

1. Letakkan klinometer diatas meja dan arahkan ke puncak pohon melalui lubang pembidikklinometer, dengan puncak pohon pohon yang dibidik dan lubang pembidik dalam suatu garis lurus.

2. Tentukan besar sudut elevasi, melalui letak tali bandul terhadap busur derajat dan klinometer.

• Jika tali bandul menunjuk pada posisi 60 derajat, maka sudut elevasinya 30 derajat( penyiku dari 60 derajat )

• Jika tali bandul menunjuk pada posisi 40 derajat, maka besar sudut elevasinya 50 derajat ( penyiku dari 40 derajat )

3. Untuk menentukan tinggi pohon juga diperlukan pengukuran tinggi mata ( dalam hal ini sama dengan tinggi meja 0, jarak antara si pengukur dan pohon yang dicari tingginya.

Misal jarak antara pengukur dengan pohon = 40 m dan besar sudut elevasi = 30 derajat

4. Setelah diperoleh hasil pengukuran di lapangan, tentukan tinggi pohon yang dicari melalui pengukuran dengan skala. Guru dapat meminta siswa untuk menggambar hasil-hasil pengukuran diatas selembar kertas.

• Misal dalam menggambarkan jarak antara si pengukur dengan pohon digunakan skala sebagai berikut:

• 5 m (jarak sebenarnya) dapat diwakili 8 cm ( pada gambar)

• - Selanjutnya dengan menggunakan busur derajat, siswa diminta menggambarkan sudut elevasi sebesar 150 derajat melalui titik A

• Tinggi “sebagian” pohon yaitu y dapat dicari dengan jalan menarik garis tegak lurus melalui titik D, sampai memotong perpanjangan “sinar” yang membentuk sudut elevasi. Gambar yang diminta adalah

• Y dapat diukur dengan menggunakan penggaris biasa. Jika y = 2,2 cm, maka panjang y sebenarnya =2,2 x 500 cm = 1100 cm = 11 m

• Tinggi pohon seluruhnya adalah seluruhnya adalah: panjang y + tinggi meja, misal tinggi meja = 0,75m atau 75 cm, maka tinggi pohon seluruhnya = 11 m + 0,75 m = 11,75 m

Get the business

Here’s where you get to scare yourself with a brainstorm of all the things that could devastate your business. Be creative but realistic and stick to major themes rather than small details. The biggest issue for one man bands is the loss of the person running the business. This could be in the short or long-term through illness or accident. The early death of the owner also needs to be planned for, so their next of kin knows what to do with the business (sell it or shut it down?). There are rules concerning dissolving limited companies, and of course outstanding bills need to be paid. If you lost your home or premises, where would you work? If all of your paperwork was destroyed in a fire, would you know essential details? Do you keep all of your business’s data on a single computer – and have you considered how you’d get the data back if something happened to it? If you do backup, is it automatically done daily offsite? On a less disastrous scale, do you have a key employee or client that you rely heavily on? What happens if they go? Is there a piece of technology or equipment that generates most of your revenue, which could take six weeks to replace.

When you’ve finished your brainstorm, there will be some things that need immediate attention. Just realised your data isn’t being backed up? Then fix it immediately – you can get an online backup for just a few pounds a month.

It has to be a key priority to get these things done immediately. Anything which can damage your business but is easily dealt with should be got rid of as soon as possible.

Business plan

The starting point for any business plan should be from the perspective of the audience. What is the purpose of the plan? Is it to secure funding? Is it to communicate the future plans for the company? The writer should tailor the plan for different audiences, as they will each have very specific requirements. For example, a potential investor will seek clear explanations detailing the proposed return on their investment and time frames for getting their money back.The recent Dragons’ Den series on BBC 2 reiterated the importance prospective investors place on knowledge of the market and the need for entrepreneurs to thoroughly research their market. The entrepreneur should undertake market research and ensure that the plan includes reference to the market size, its predicted growth path and how they will gain access to this market. A plan for an Internet café will consider the local population, Internet penetration rates, predictions about whether it is likely to grow or decline, etc., concluding with a review of the competitive environment.Make the plan concise, but include enough detail to ensure the reader has sufficient information to make informed decisions. Given that the plan’s writer usually has a significant role to play in the running of the business, the plan should reflect a sense of professionalism, with no spelling mistakes, realistic assumptions, credible projections and accurate content. The writer should also consider the format of the plan, e.g., if a presentation is required, a back-up PowerPoint presentation should be created.The numbers will be subject to particular scrutiny. Costs should be documented in full and sales predictions should be both conservative and realistic. While costs are more certain and predictable, a crucial factor in the success or failure of the business will be the level of sales. If you are not particularly comfortable with maths, have someone assist you in preparing a simple cash flow and break even chart. This will help the reader understand how many sales you must make to cover your costs, and also how much financing you must raise to start up successfully. Remember, at the beginning, there are a lot of start-up expenses in a period of uncertain sales volumes. If sales are on credit (including via credit card) it may take up to 4 weeks for you to receive the cash.

The Primary Chequing account

The Primary Chequing account is ideal for day-to-day banking needs like withdrawals, bill payments, transfers, account history inquiries and more.Your Primary Chequing account is linked to an Everyday Banking Plan. You can save money by choosing the Banking Plan that best fits your needs. If you maintain the minimum monthly balance for your Plan, you pay no monthly fee. In addition, you can add multiple accounts to your Banking Plan.Pay no monthly fee if you maintain the minimum monthly balance for your Plan.Available in Canadian or U.S. dollars².Comes with cheque writing privileges.Get one monthly statement – combine all of your personal accounts on one detailed monthly statement and pay no additional fees.Choose cheque safekeeping or cheque return (free with some Plans).Add overdraft protection (subject to qualification).

BMO Term Investments

Every month, you will receive one consolidated monthly statement that includes details of your BMO Mutual Funds, BMO Term Investments and BMO Bank of Montreal Personal Accounts that you choose to include in your BMO Account Tracker statement:
A detailed view of your BMO Bank of Montreal Personal Account balances and transactions.Monthly investment reporting for BMO Mutual Funds and BMO Term Investments accounts. The support of a Financial Services Manager who can answer your questions and make investment recommendations.Online access to your BMO Account Tracker account information and the option to purchase BMO Mutual Funds and BMO Term Investments online.

There's no need to make any changes to your existing accounts. You can include any of the following accounts in your BMO Account Tracker statement:Canadian and U.S. dollar chequing and savings accounts.Canadian and U.S. dollar non-registered BMO Mutual Funds and BMO Term Investments.Registered BMO Mutual Funds and BMO Term Investments including RRSPs, RRIFs, LIRAs, LRIFs and LIFs.BMO Intuition RESPs.Personal loan balances.

For greater convenience, include other people's Accounts with your monthly statement, such as your spouse, children or parents. To do this, you and the other Account holder(s) must provide the necessary authorization when you visit your branch to enrol in BMO Account Tracker.