Plenary Students to add notes and diagrams on temperature profiles to their folders and file. Lesson 8 Key idea 2A.5 2A.5b. There are National / Local (4) Use of Starter Different processes different processes that measures of Define extending and compressional flow with students – (1 hour) explain glacial are important in the central show diagrams and discuss. movement and movement of glaciers tendency to variations in rates. (basal slip, regelation compare Main creep, internal rates of Provide labelled diagram of extending and compressional Suggested deformation). glacier flow but block out labels encourage students to label it – learning movement. themselves using provided information: 2A.5c. A number of objective: Examine each movement process of glaciers individually factors control the rate of To be able to for deformation and basal slip, there are good time – movement (altitude, explain differences lapse videos which explain the process in detail, eg: slope, lithology, size and between ice Go through definition of lithology and ensure students variations in mass movement in know what this means: balance) with both temperate and Investigate impact of each factor of movement (angle of positive and negative polar glaciers. slope, altitude, lithology, size, mass balance variations) feedback in the system. in turn use journal articles to support this, e.g. – Include width and depth of glaciers (related to changes in mass balance) which impacts rate of movement. Key Use measures of central tendency to compare glacier Extending flow movement: Compressional flow Lithology Additional support: Internal deformation Plenary slip Students to create and complete a detailing the Central tendency different forms of glacial movement and giving examples of where they may be present (e.g. Franz Jozef Glacier in New Zealand is a good example of internal deformation) (Can be done as HW Task 4) Lesson 9 Key idea 2A.6 2A.6a. Glaciers alter National / Local Starter landscapes by a number Show students a picture of a glaciated landscape, (1 hour) The glacier of processes: details of and ask them to identify a of separate landform system. erosion, entrainment, glacially-formed features: transport and deposition.
Plenary Students to add notes and diagrams on temperature profiles to their folders and file. Lesson 8 (1 hour) Key idea 2A.5 Different processes explain glacial movement and variations in rates. Suggested learning objective: To be able to explain differences between ice movement in temperate and polar glaciers. 2A.5b. There are different processes that are important in the movement of glaciers (basal slip, regelation creep, internal deformation). 2A.5c. A number of factors control the rate of movement (altitude, slope, lithology, size and variations in mass balance) with both positive and negative feedback in the system. Key Extending flow Compressional flow Lithology Internal deformation slip Central tendency National / Local (4) Use of measures of central tendency to compare rates of glacier movement. Starter Define extending and compressional flow with students – show diagrams and discuss. Main Provide labelled diagram of extending and compressional flow but block out labels – encourage students to label it themselves using provided information: Examine each movement process of glaciers individually – for deformation and basal slip, there are good time lapse videos which explain the process in detail, eg: Go through definition of lithology and ensure students know what this means: Investigate impact of each factor of movement (angle of slope, altitude, lithology, size, mass balance variations) in turn – use journal articles to support this, e.g. Include width and depth of glaciers (related to changes in mass balance) which impacts rate of movement. Use measures of central tendency to compare glacier movement: Additional support: Plenary Students to create and complete a detailing the different forms of glacial movement and giving examples of where they may be present (e.g. Franz Jozef Glacier in New Zealand is a good example of internal deformation) (Can be done as HW Task 4) Lesson 9 (1 hour) Key idea 2A.6 The glacier landform system. 2A.6a. Glaciers alter landscapes by a number of processes: details of erosion, entrainment, transport and deposition. National / Local Starter Show students a picture of a glaciated landscape, and ask them to identify a of separate glacially-formed features:
Edexcel2016_ASandAlevelGeography_Topic2A_GlaciatedLandscapesandChange_SOW.docx