Oakwood Technology College Task 1 - Problem-solving using a table and paper-based resource In pairs look at the worksheet 7.4P1a Zoo activity.doc Complete the first example by hand on the resource sheet, working out the cost of feeding all of the animals. Try and work out the costs in your mind. If you need to use the calculator for the totals click on My Computer – Public Area – ICT - Y7 - Calculator ‘Underspend’ means how much they have not spent. Complete the second example 5

Oakwood Technology College Task 1 - Problem-solving using a table and paper-based resource What changes did you have to make to the second example? –the total cost for penguins has changed;(4) –the cost for lions has changed;(12) –the values in E3 and E8 have increased; –the total, E12 has increased; –the underspend, E14 has decreased; –there is less money left. Watch this example of the same information being changed in a spreadsheet –Public Area – ICT – Year 7 – Unit T1b Zoo activity.xls 5

Oakwood Technology College Task 1 - Problem-solving using a table and paper-based resource What are the benefits of using a spreadsheet for the written task on the resource sheet? –easier to make changes; –the spreadsheet does the calculations; –you can quickly see if you have any money left. 10

Oakwood Technology College Task 2 - Using a formula in a spreadsheet The following will now be demonstrated 7.4 Test Results.xls from Public Area – ICT – Year 7 – Unit 7-4 –Perform the following calculations: Addition Subtraction Division Multiplication (use of *, why?) –Copy down and across using the ‘fill handle’ 10

Oakwood Technology College Spreadsheets Basic terms and structures

Oakwood Technology College Each cell has a unique cell reference e.g. B17 Text labels Columns (letters) Rows (numbers) Numeric data Column letter B Row number 17 A worksheet

Oakwood Technology College Formula Start with = then create the formula When you press Enter, the formula will automatically be calculated. What do you think the answer will be? Formulae can also be viewed and edited here in the formula bar.

Oakwood Technology College By dragging the fill handle, you can copy and paste the formula into other cells See the fill handle (black square in bottom right of cell) What formula should have been generated in cell D13? The data can be sorted in alphabetical or numerical order – using the AZ icons The data can be displayed on a chart, using the Chart Wizard icon B13+C13

Oakwood Technology College Task 3 - Task 3 - Setting up a simple spreadsheet Watch the following teacher demonstration from: –Public Area – ICT – Year 7 – Unit T1e Teachers’ football league.xls Now load the same file from: –Public Area – ICT – Year 7 – Unit 7-4 – 7.4p1f Football League Table.xls Complete the spreadsheet and save it into a new folder in your userarea: –Userarea – ICT – Year 7 – Unit 7-4 If you finish early ask your teacher about absolute cell referencing. 20

Oakwood Technology College Plenary: Advantages and disadvantages of using a spreadsheet Compare the method of using a spreadsheet for recording football results with using a pen, paper, ruler and, perhaps, calculator to do the same thing. –speed, and the ease of correcting mistakes; –the possibility of making multiple copies. What was difficult about the task? –the maths; –the need to work out what the formula should be rather than just adding or multiplying numbers together; –the possibility of highlighting the wrong cells. 5

Oakwood Technology College Homework Think how you would use a spreadsheet in real life. apply the ideas just suggested to identify two advantages and two disadvantages for their real-life examples. 5