mark's+assignment

= = = toc Title of assignment and task: HDHET-WIL 20 JUNE 2012 = Author: MARK LAWRENCE Institution: NORTHLINK COLLEGE

= Context of your assignment, e.g. discipline, students, level of studies =
 * Carpenty and
 * Male and Female students
 * Ages: 16 -25
 * National Certificate Vocational (NCV) lL 5

= Full task description including title of assignment and formative tasks leading up to summative task = = = = =
 * 1) **Description of the task**

= = = = = = = = Before commencing with the tasks the wall plate must be set into place and secured. This will be done by all the team leaders. Ensure the correct span, 6 metres, is maintained and that the two wall plates are parallel. = = This task will be assigned to Group 1; the other groups may also have input. The team leader must assign the following tasks to members within his group. NOTE: This task must be done with extreme caution, wear protective clothing and gloves to prevent wood splinters. This will complete the first truss. Construct the other FOUR trusses, one at a time, by using the first truss as a template. · Cut the individual truss members to the exact size as the first truss. · Place these members on top of the corresponding members of the first truss. · Nail and bolt the truss together. (HINT: After nailing the truss, turn the truss over and clinch the nails.) · Repeat the same process until the four trusses are completed. || = = = = This task will be assigned to Group 2; the other groups may also have input. The team leader must assign the following tasks to members within his group. NOTE: This task must be done with extreme caution, wear protective clothing and gloves to prevent wood splinters. = = = = = = This task will be assigned to Group 3; the other groups may also have input. The team leader must assign the following tasks to members within his group. NOTE: This task must be done with extreme caution, wear protective clothing and gloves to prevent wood splinters. = =
 * Your class group will be required to erect a fully braced roof structure. This will comprise of setting up a wall plate, constructing FIVE roof trusses, lifting the trusses onto the wall plate, aligning, levelling and fixing the trusses then bracing the whole structure. Detailed descriptions of all the sub-tasks are given in the instructions below. ||
 * 1) **Instructions for the task**
 * SUB-TASK 1**
 * **//Build FIVE, 6 metre span, Howe roof trusses//**//.//
 * Study the drawing given in figure 2(a) and 2(b).
 * Choose the correct lengths of timber, tools and equipment.
 * Use a measuring tape and chalk line to set out the first roof truss on a hard, clean and level surface.
 * Cut the timber to the required lengths, ensuring that the bevels are accurately cut.
 * Cut the spacers which will be inserted where the rafters meets the vertical posts and struts, as shown in figures 1 and 2.
 * Consult figure 3 for the correct positions of the nails and bolts.
 * Set out the positions for the nails and bolts.
 * Nail all the joints
 * Drill holes for the bolts; bolt the joints as shown in figure 3.
 * SUB-TASK 2**
 * **Place the first truss onto the wall plate and apply vertical bracing.**
 * Mark out the position of the first truss, and subsequently, the centres of the other four trusses. All trusses must be placed at 760 mm centres.
 * Lift the first truss onto the wall plate. Refer to figure 1.
 * Prepare the vertical braces, refer to figure 1.
 * Align the truss then skew nail the truss to the wall plate.
 * Nail the vertical braces to the top of the roof truss.
 * Plumb the truss and nail the braces to the floor or ground.
 * Level the roof truss to the required height. ||
 * SUB-TASK 3**
 * **Erect the other four trusses onto the wall plate. Place in correct positions and apply temporary bracing.**
 * Lift the second truss onto the wall plate, refer to figure 1, and place it in the correct position, skew nail to the wall plate then brace temporarily to the first truss.
 * Do the same with the trusses marked 3, 4, and 5 as described above. ||

= = = = This task will be assigned to Group 4; the other groups may also have input. The team leader must assign the following tasks to members within his group. NOTE: This task must be done with extreme caution, wear protective clothing and gloves to prevent wood splinters. = = = = This task will be assigned to Group 5; the other groups may also have input. The team leader must assign the following tasks to members within his group. NOTE: This task must be done with extreme caution, wear protective clothing and gloves to prevent wood splinters. The group leaders must now inspect the completed roof and see to minor defects. || == (25 marks) || The five, 6 metre span Howe roof trusses constructed correctly. (20 marks) || The five, 6 metre span Howe roof trusses constructed. (15 marks) || The five, 6 metre span Howe roof trusses not well constructed. (5 marks) ||  || (15 marks) || The first trusses placed onto the wall plate and apply vertical bracing correctly. (7 marks) || The first trusses placed onto the wall plate and apply vertical bracing. (5 marks) || The first truss was not placed correctly onto the wall plate and could not apply vertical bracing. (3 marks) ||  || (20 marks) || The other four trusses are erected onto the wall plate, placed in correct positions and applied temporary bracing correctly. (15 marks) || The other four trusses are erected onto the wall plate, placed in positions and applied temporary bracing. (10 marks) || Could not erect the other four trusses onto the wall plate. (5 marks) ||  || (15 marks) || The trusses are aligned, levelled and secured to the wall plate according to the required specifications. (10 marks) || The trusses are aligned, levelled and secured to the wall plate according to the required. (7 marks) || The trusses are not aligned, levelled and secured to the wall plate according to the required specifications correctly. (3 marks) ||  || (25 marks) || Apply all cross-bracing and runners correctly. (20 marks) || Apply all cross-bracing and runners (15 marks) || Can not apply all cross-bracing and runners. (5 marks) ||  || = = = = || **ITEM** **(2 marks)** || **No** **(0 marks)** || = = = =
 * SUB-TASK 4**
 * **The trusses are aligned, levelled and secured to the wall plate.**
 * Centralise trusses 1 and 5 between the wall plates.
 * String a nylon line across the ridge from truss 1 to truss 5.
 * Move trusses 2, 3 and 4 in line with nylon line.
 * String a nylon line across the heel ends of the trusses, above the wall plate, at both sides of the roof.
 * Use timber wedges, where applicable, and level the trusses at the wall plate.
 * Use 100 mm wire nails and skew nail the trusses to the wall plate.
 * Make sure that all temporary braces are secured. ||
 * SUB-TASK 5**
 * **Apply all cross-bracing and runners.**
 * Do not remove the temporary braces yet.
 * Apply the diagonal bracings as shown in figure 1. Figure 5 shows a detail at the tie beam.
 * Apply the tie beam bracing.
 * Apply the tie beam runners and web runners. See figure 4(a) and (b) for the joining details.
 * Ensure the roof is fully braced before removing the temporary braces.
 * MARKING RUBRIC**
 * Assessment Criteria ||  Level 4: Outstanding  ||  Level 3:   Highly Competent  ||  Level 2: Competent  ||  Level 1:   Not Yet Competent  ||   ||
 * Build FIVE, 6 metre span, Howe roof trusses
 * (Mark allocation. Total = 25) ** || The five, 6 metre span Howe roof trusses constructed excellently.
 * (Mark allocation. Total = 25) ** || The five, 6 metre span Howe roof trusses constructed excellently.
 * Place the first truss onto the wall plate and apply vertical bracing
 * (Mark allocation. Total = 15) ** || The first trusses placed onto the wall plate and apply vertical bracing explicitly well.
 * Erect the other four trusses onto the wall plate. Place in correct positions and apply temporary bracing.
 * (Mark allocation. Total = 20) ** || The other four trusses are erected onto the wall plate explicitly well, placed in correct positions and applied temporary bracing correctly.
 * The trusses are aligned, levelled and secured to the wall plate
 * (Mark allocation. Total = 15) ** || The trusses are aligned, levelled and secured to the wall plate according to the required specifications correctly.
 * Apply all cross-bracing and runners
 * (Mark allocation. Total = 25) ** || Apply all cross-bracing and runners explicitly very well.
 * ** SUB- TOTAL ** ||  ** / 100 **  ||   ||
 * CHECKLIST**
 * **Yes**
 * # Did the students understand the listed outcomes? ||  ||   ||
 * # Did the students respond positively to forming groups? ||  ||   ||
 * # Did the students communicate any unclear issues? ||  ||   ||
 * # Did the students wear the proper safety clothing? ||  ||   ||
 * # Did the students communicate effectively within their groups? ||  ||   ||
 * # Did the students adhere consistently to all relevant safety rules? ||  ||   ||
 * # Were the correct tools and equipment chosen appropriate for the task? ||  ||   ||
 * # Were the correct materials used? ||  ||   ||
 * # Did the students work effectively within their groups? ||  ||   ||
 * 10.Did the students display enthusiasm towards the task and maintained an overall workmanship of excellent quality. ||  ||   ||
 * **SUB-TOTAL** ||  ||   ||
 * **TOTAL** |||| **/ 20** ||
 * RECORD OF PERFORMANCE **
 * > **College:** ||>  ||
 * > **Campus:** ||>  ||
 * > **Student’s Surname and First Name/s:** ||>  ||
 * > **Student’s ID Number:** ||>  ||
 * > **Lecturer’s Surname and Initials:** ||>  ||
 * > **Date of conclusion of assessment:** ||>  ||

//Build FIVE, 6 metre span, Howe roof trusses.// || **20**  ||   || Place the first truss onto the wall plate and apply vertical bracing. || **10**  ||   || Erect the other four trusses onto the wall plate. Place in correct positions and apply temporary bracing. || **15**  ||   || The trusses are aligned, levelled and secured to the wall plate. || **15**  ||   || Apply all cross-bracing and runners. || **20**  ||   ||
 * **ASSESSMENT GRID** ||
 * **TASKS** ||  **MARK ALLOCATION**  ||  **STUDENT’S MARK**  ||
 * **Sub-Task 1:**
 * **Sub-Task 2**
 * **Sub-Task 3:**
 * **Sub-Task 4:**
 * **Sub-Task 5:**
 * Choice of materials, tools and equipment || **10**  ||   ||
 * Safety practices || **10**  ||   ||
 * **TOTAL** || **100**  ||   ||
 * **ISAT MARK AS A PERCENTAGE** || **%**  ||   ||

**COMPETENCE LEVEL INDICATORS**
 * **5-Point Achievement Rating Scale** ||
 * |||| **5**   **(80-100%)**  ||  **4**   **(70-79%)**  ||  **3**   **(50-69%)**  ||||  **2**   **(40-49%)**  ||  **1**   **(0-39%)**  ||
 * **Competency Level Indicators** ||
 * **Rating Code** ||||||||  **Rating**  ||||  **Marks %**  ||
 * 5 ||||||||  Outstanding  ||||  80 – 100 %  ||
 * 4 ||||||||  Highly Competent  ||||  70 –79 %  ||
 * 3 ||||||||  Competent  ||||  50 – 69 %  ||
 * 2 ||||||||  Not Yet Competent  ||||  40 –49 %  ||
 * 1 ||||||||  Not Achieved  ||||  0 – 39%  ||


 * **Student’s competence level:** ||  ||
 * **Student’s signature:** ||  ||
 * **Lecturer’s signature:** ||  ||
 * **Date:** ||  ||

= = = = = = = = = = = = = Rationale for design based on theoretical educational literature = = = =Peer review= Name of peer reviewer: Sean Smith Comments: I find the assessment authentic and the activities make the collaboration integral to the success of the task. Assigning certain task within a group raises the level of authenticity when students work actively. The assessment criteria is appropriate and in line with the task and subtasks and the rubric well designed and very relevant. The addition of a checklist, where the breakdown of mark allocation are given provides the student the opportunity to gain a practical perspective to determine relevant information in the process. The assignment includes authentic activities that match what is happening on a construction site, the real-world. I however noticed that the class is divided in groups and that groups only do certain tasks while the others have input. The problem I see, is that the groups can only be fairly assessed on the tasks that they performed and the assessment loses its holistic approach. Authentic activities culminate in the creation of a whole product valuable to the student in construction. =Changes implemented after peer review=