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Room measuring homework

Room measuring homework. Next lesson we will attempt to draw a correctly scaled map of a room in your house . For homework you will need to do the following: Choose a room. Take photos of the room on your phone. You could take a Photosynth if you have an iPhone (free app).

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Room measuring homework

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  1. Room measuring homework Next lesson we will attempt to draw a correctly scaled map of a room in your house. For homework you will need to do the following: • Choose a room. • Take photos of the room on your phone. You could take a Photosynth if you have an iPhone (free app). • Take as many measurements as you can e.g. width, length, chimney breast, alcoves, dimensions of furniture, distance from furniture away from the wall. • Record your measurements on a rough sketch map. • Bring your sketch map, phone pictures, pencil & 30cm ruler into your Geography lesson next Monday! • All measurements in millimetres (1000mm = 1mm)

  2. Room measuring homework

  3. Drawing to scale In today’s lesson you will draw your room to scale. You will need to choose the correct scale, draw a scale line and then scale-down your measurements

  4. Why bother with scale? • Scale is an essential geographical and mathematical concept. • Every map uses scale. • This activity will help you understand what scale is and how to use it! • Drawing to scale is an important skill which will help you in map making (cartography), interpreting maps, measuring distances, planning a new garden, planning a new room layout, interior design, designing an extension, building a patio, shed or house.

  5. Choose the correct scale • 1:100 useful for showing the whole house. • 1:50 useful for showing one large room or two adjacent rooms with the longest dimension being 7 metres (7000mm) or longer. • 1:25 useful for showing a standard sized room equal to or less than 6m (6000mm) by 4m (4000m). • Remember the smaller the scale ratio number the larger the scale. • Larger scale means more detail!

  6. Draw the correct length scale line • 1:100 1cm on map = 100cm or 1m in real life. A 2m long scale line will be 2 cm long. • 1:50 1cm on map = 50cm or 0.5m in real life. A 2m long scale line will be 4cm long. • 1:25 1cm on map = 25cm or 0.25m in real life. A 2m long scale line will be 8cm long. • Write the appropriate scale ratio next to your scale line. Remember the smaller the scale ratio the larger the scale. Large scale means more detail!

  7. Scaling down your measurements • You will now use your scale ratio to ‘scale down’ your measurements so you can fit your plan onto your map. This is very straightforward as long as you remember 3 things: • Use the correct scale ratio. • Use a calculator to speed up the process. • Scaling down will give you an answer in mm but your ruler is marked in cm! 10mm = 1cm; 26mm = 2.6cm etc

  8. Scaling down at scale 1:100 • Divide your measurement by 100 to get the correct length line on your map. • 1000mm / 100 = 10mm (or 1cm) • 300mm / 100 = 3mm (or 0.3cm) • 25mm / 100 = 0.25mm (or 0.03 cm) • 3730mm / 100 = 37.3mm (or 3.7cm)

  9. Scaling down at scale 1:50 • Divide your measurement by 50 to get the correct length line on your map. • 1000mm / 50 = 20mm (or 2.0cm) • 300mm / 50 = 6mm (or 0.6cm) • 25mm / 50 = 0.5mm (or 0.05cm) • 3730mm / 50 = 74.6mm (or 7.46cm)

  10. Scaling down at scale 1:25 • Divide your measurement by 25 to get the correct length line on your map. • 1000mm / 25 = 40mm (or 4.0cm) • 300mm / 25 = 12mm (or 1.2cm) • 25mm / 25 = 1mm (or 0.1cm) • 3730mm / 25 = 149.2mm (or 14.9cm) • Most of you will use this scale as your room will fit nicely onto an A4 sheet of paper 

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