Numeracy for Work and Community Life Field Trip Folio

Page 1 of 14 Stage 1 Numeracy for Work and Community Life annotated student response for use in 2011 1nwc10-AT2-wsann01-A-v0.2.doc (March 2011) © SACE Board of South Australia 2011

Numeracy for Work and Community Life

Field Trip Folio Assessment Task

In this assessment task we will be undertaking a field trip that will require you to complete a number of

mathematical tasks related to undertaking the field trip; calculating the expenses of the trip, notating tidal

measurements, investigating data on fisheries and calculations related catches of Blue Swimmer crabs.

Complete all questions.

You may use a calculator if required (you need to indicate you have used a calculator).

Collate all of your information into a folio presentation.

This work is to be completed over a two week period.

BLUE SWIMMER CRABS

1) Read the information on blue swimmer crabs.

Record the data that is necessary to comply with Fisheries Regulations of the catching of blue

swimmer crabs in South Australia (4 numerical facts are required).

2) To be legal, blue swimmer crabs must be 11cm across the carapace. How many millimetres is this?

3) One person may take 40 crabs in one day. If 14 students catch their bag limit, how many crabs are

caught?

4) The average crab weighs 500gms. How much would 40 crabs weigh? Convert the grams to

kilograms.

DISTANCE TO TRAVEL

5) Tiddy Widdy Beach (near Ardrossan) is 150 kilometres from Adelaide.

Rostrevor to Pt Wakefield is 95 kilometres; Pt Wakefield to Tiddy Widdy Beach is 49 kilometres.

How many kilometres would we have travelled by the time we return to Rostrevor from Tiddy Widdy

Beach?

6) On the map provided determine the scale and estimate the distance from Tiddy Widdy Beach to

Ardrossan.


TIDES

7) Raking for crabs is best carried out at low tide levels. Examine the tide chart provided and answer the

following questions:

• What is the lowest tide for Fri 26th?

• What is the highest tide on the afternoon of the 26th?

• On the 26th what is the distance between the high tide in the afternoon and the

low tide listed at 10.34?

• What time is the latest low tide on Friday 26th? (Remember to add an hour for

daylight saving!)

INVESTIGATION AND CALCULATIONS

What would be likely to happen if we went crabbing on Wednesday at 1732?

You will need to look up the market prices to answer these questions. Use Google and go to a

nominated seafood market.

8) What is the current price of uncooked blue swimmer crabs?

9) What would be the cost of purchasing 5 kilos of crabs?

10) What is the current price of cooked blue swimmer crabs?

11) What would be the cost of purchasing 3 kilos of cooked crabs?


The Fishing Game

As a class we will play the Fishing Game: You will be responsible for care and maintenance of your boat (boats) and pots. You will need to keep a tally of your working out on the Fishing Diary, which will list your profits and losses from each fishing trip.

You may use a calculator to assist you with purchases, losses, and hopefully profits.

Incentives will be rewarded after peak periods.

Tight lines!

12) Complete the data analysis questions related to the fisheries survey conducted with National Parks.





FISHING GAME INSTRUCTIONS

How to play:

• Each player is given a fishing diary (pg. 3).

• Players begin with 1 boat and 5 pots, as well as $50 in the bank. Students can not purchase any additional pots until the end of the first day.

• Students nominate whether they want to fish in the sea or river by ticking the appropriate box.

• Teacher rolls the dice.

• Students calculate how much money they have made according to the number rolled on the dice (refer to fish market table on pg. 4)

• For example, if a student is fishing in the sea and a 6 is rolled, the student makes $12 for every pot they have fishing. If a student is fishing in the river and a 1 is rolled, they make $2 for every pot fishing.

• After calculating how much money they have made (if any), players then need to decide on whether they are going to purchase any extra pots or boats for the following day (for prices on boats and pots refer to fish market table on pg. 4). All calculations and transactions are to be recorded in the space provided in the fishing diary for the appropriate day. After all purchases have been made players must record how much money they have in the bank at the end of that day.

• Players begin the second day by indicating where they will be fishing and how many boats and pots they have.

• This process is continued until the end of bay 14 or whenever you decide to finish.

Losing Half Your Pots

When a 3 is rolled all players lose half their pots because of irreparable damage. It is up to each player whether they replace those pots at the end of the day with money from their bank. If a player has 13 pots they lose 7 (half rounded to the nearest whole number).


Boat Repairs

If a 4 is rolled on the dice, those players fishing in the river need to pay $20 per boat for maintenance. This money needs to be taken from their bank account. In the event that a player does not have enough money in their account to pay for maintenance costs they have to borrow from Mr. Willow's Greedy Bank.

Lost Everything!!!!!

When a 5 is rolled, those players fishing in the sea lose all of their boats and pots due to a severe storm and huge waves. Each player then needs to use their money in the bank or borrow money to stay in the game. Players do not need to purchase the same number of boats and pots as they previously had.

Mr. Willow's Greedy Bank

Mr. Willow's Greedy Bank is there to help those players who cannot pay their bills. Players are allowed to borrow up to $100 a day. All monies borrowed need to be repaid in full at the completion of the game, or when players have sufficient money in their bank to repay the loan.

The bank should be up on a whiteboard/blackboard for players to be able to make changes to the amount owing when required.

How Do We Find a Winner?

To calculate how much money they have made at the end of the game, players need to sell their boats and pots and add that total to whatever they had in the bank. All boats can be resold for $50 and pots are sold for $5. For example, if a player had 7 boats, 70 pots and $350 in the bank they would finish with $1,050.

Equipment Needed

• dice • fishing diary • fish market table (I have mine running through the data projector so everyone can

see) • pencils, eraser, calculators

If you want to challenge your class and make things a little more interesting you can incorporate the following concepts into the game.


Insurance

Players are able to take out insurance on their boats and pots. Insurance can be purchased at any stage and can be terminated at any stage by the player. Insurance can be purchased for $10 a day with an excess of $100 each time a player makes a claim. The excess amount doubles with every claim made. The insurance policy allows players to replace all boats and pots in the event of a 5 being rolled when they are fishing in the sea. If a player decides to take out insurance they must have a card on their desk and deduct $10 from their bank account at the end of each day.

Bank Interest

To try and encourage players to keep money in the bank introduce an interest rate of 10%. Interest is calculated daily, with the interest amount added to the total that a player has borrowed from the bank. 10% is an easy percentage rate for players to calculate. Players need to perform all calculations on the board themselves (assistance is given to those who need it).


FISH MARKET

*The Fish Market can be volatile, with changes made on a regular basis*.

POTS = $5 each BOATS

1st BOAT = $50 2nd BOAT = $75 3rd BOAT = $100 4th BOAT = $150

The first boat a player purchases is $50. The second boat is $75, the third is $100 and the fourth and any subsequent boats are $150.

Each boat can carry 10 pots. After that the boat becomes too crowded and another boat needs to be purchased.

1 boat -10 pots 2 boats -20 pots etc.





Numeracy for Work and Community Life

Fisheries Data: Analysis of data

What is the main species of native fish recorded in the Morialta/Rostrevor area?

According to the data presented what is the most common species recorded trapped?

What is the most common "local native" fish species recorded?

List in descending order the 5 most common fish species.

What creek systems produced the highest total species diversity?

In what creek/river system are translocated species doing well in?

In what creek or river system would we find flat-head gudgeon?

How many species of exotic fish are listed in the survey?

What is the average species diversity in all of the sites surveyed?

What assumptions can you make from the data collated at Dry Creek (behind the Education

Centre) and the River Torrens (Marden)?

Documents

Numeracy for Work and Community Life Field Trip Folio