| A | B | C | D | E | F | G | H | I | J | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Timestamp | Class | Index number | 1. How long did he take to repair the first computer? (.......... minutes) | 2. How far from his workshop was his first customer? (......... km) | 3(a) Find the gradient of OA (......... km/min) | 3(b) What is the significance of the gradient of OA? | 4(a) Find the gradient of BC (......... km/min) | 4(b) What is the significance of the gradient of BC? | Email Address | |
2 | 8/27/2021 4:58:49 | ANS | 0 | 20 | 9 | 0.9 | It represents the average speed he travelled from the workshop to the 1st customer's place. Gradient is the RATE. It shows the distance travelled per unit time. | 0.8 | The average speed that he travelled from the 1st customer's place to the next customer's place. The negative sign also shows the direction that he is travelling (i.e. heading towards/ nearer to the starting point, i.e. the company) | ||
4 | 8/25/2021 13:59:20 | S1-06 | 1 | 20 | 9 | 0.9 | It is the speed at which he travelled at for his first journey. Be more precise, it's the average speed in the first 10min | 0.8 | It is the speed at which he travelled at for his second journey. Refer to comment for 3(b) | ||
5 | 8/25/2021 20:56:49 | S1-06 | 3 | 10 | 9 | 9 | The vehicle accelerate from 0km to 9km in 10 mins. Since question talks about gradient, then focus on describing the gradient. What you described could be represented by the speed-time graph or accelaration-time graph | 15 | The vehicle decelerate from 9km to 5km in 5 mins. Refer to comment for 3(b) | ||
6 | 8/25/2021 14:50:51 | S1-06 | 4 | 20 | 9 | 0.9 | The gradient of OA is the speed of the technician's car as he drives from his workshop to repair the first customer's computer. Be precise, talk about "average speed" and the duration | -0.8 | The gradient of OA is the speed of the technician's car as he drives back to his workshop before stopping to repair the second customer's computer. Refer to comment for 3(b) | ||
7 | 8/25/2021 20:01:06 | S1-06 | 5 | 20 | 9 | 910 | 54km / h Need to describe, generalised based on context. this is not acceptable | 45 | 48km / h Refer to comment for 3(b) | ||
8 | 8/25/2021 14:00:45 | S1-06 | 6 | 20 | 9 | 0.9 | km/min Need to describe. this is not acceptable | -0.8 | km/min Refer to comment for 3(b) | ||
9 | 8/25/2021 14:36:28 | S1-06 | 7 | 20 | 9 | 0.9 | 9km/10minutes Need to describe, generalised based on context. this is not acceptable | -0.8 | 4km/5minutes Refer to comment for 3(b) | ||
10 | 8/25/2021 14:00:27 | S1-06 | 8 | 10 | 9 | 0.9 | Speed of his travel Can be more precise | 0.8 | Speed of his travel Refer to comment for 3(b) | ||
11 | 8/25/2021 16:31:10 | S1-06 | 9 | 20 | 9 | 54 | It shows the speed that the car is going at. Can be more precise | 60 | It shows the speed that the car is going at. Refer to comment for 3(b) | ||
12 | 8/25/2021 14:02:20 | S1-06 | 10 | 20 | 9 | 0.9 | 54km/h Need to describe, generalised based on context. this is not acceptable | 0.8 | 48km/h Refer to comment for 3(b) | ||
13 | 8/25/2021 15:44:11 | S1-06 | 11 | 20 | 9 | 10 | 0.9km per min Need to describe, generalised based on context. this is not acceptable | 4 | 0.15km per min Refer to comment for 3(b) | ||
14 | 8/25/2021 13:57:00 | S1-06 | 12 | 20 | 9 | 9 | It shows the speed at which the technician travelled to the first customer's house. Be more precise, it's the average speed in the first 10min | -8 | It shows the speed at which the technician travelled from the first costumer's house to the second customer's house. Refer to comment for 3(b) | ||
15 | 8/25/2021 21:59:12 | S1-06 | 13 | 20 | 9 | 0.1 | It is the speed of his truck Be more precise, it's the average speed in the first 10min | 0.1 | This is the speed Refer to comment for 3(b) | ||
16 | 8/25/2021 14:01:27 | S1-06 | 14 | 20 | 9 | 9 | 0.9km/min Need to describe, generalised based on context. this is not acceptable | 10 | 1km/min Refer to comment for 3(b) | ||
17 | 8/25/2021 14:00:42 | S1-06 | 15 | 20 | 20 | 0.9 | the speed of the technician Be more precise, it's the average speed in the first 10min | 0.8 | speed Refer to comment for 3(b) | ||
18 | 8/25/2021 14:02:33 | S1-06 | 16 | 20 | 9 | 9 | 0.9km/min Need to describe, generalised based on context. this is not acceptable | -9 | 9/km/min Refer to comment for 3(b) | ||
19 | 8/25/2021 22:46:10 | S1-06 | 16 | 20 | 9 | 9 | 0.9 Need to describe, generalised based on context. this is not acceptable | -8 | 0.8 Refer to comment for 3(b) | ||
20 | 8/25/2021 14:03:54 | S1-06 | 17 | 20 | 9 | 0.9 | It tells me the speed technician travelled at Be more precise, it's the average speed in the first 10min | 0.8 | It tells me the speed of the technician Refer to comment for 3(b) | ||
21 | 8/25/2021 19:55:35 | S1-06 | 21 | 10 | 9 | 0.9 | The speed. Be more precise, it's the average speed in the first 10min | 0.8 | His speed while on the way back. Refer to comment for 3(b) Also, read the context carefully, it's not back to workshop yet | ||
22 | 8/26/2021 18:00:56 | S1-06 | 22 | 20 | 9 | 9 | Speed Be more precise, it's the average speed in the first 10min | 9 | Speed Refer to comment for 3(b) | ||
23 | 8/25/2021 20:32:24 | S1-06 | 23 | 20 | 9 | 0.9 | the average speed when he travelled from his workshop Be more precise, it's in the first 10min | -0.8 | the speed from his first customer to his second Refer to comment for 3(b) | ||
24 | 8/25/2021 14:00:51 | S1-06 | 24 | 20 | 10 | 9 | Speed Be more precise, it's the average speed in the first 10min | 0 | Speed Refer to comment for 3(b) | ||
25 | 8/25/2021 21:33:37 | S1-06 | 25 | 20 | 9 | 9 | the average speed when he travelled was 90 km/h (check) Be more precise, it's in the first 10min | 0.8 | the average speed when he travelled was 80 km/h Refer to comment for 3(b) | ||
26 | 8/26/2021 15:58:52 | S1-06 | 26 | 20 | 9 | 9.1 | The significance of the gradient of OA is that its 9km/10min (do not leave speed in this manner though this way of writing gives clarity to what it means; it can only be considered as working most of the time) Need to describe, generalised based on context. this is not acceptable | 4.5 | The gradient of BC is 4km/5min Refer to comment for 3(b) | ||
27 | 8/26/2021 17:22:35 | S1-06 | 27 | 20 | 9 | 9 | km/min Need to describe, generalised based on context. this is not acceptable | -8 | km/min Refer to comment for 3(b) | ||
28 | 8/27/2021 7:04:07 | S1-06 | 20 | 20 | 14 | 0.9 | unsure | 0.14 | unsure | ng_jun_le@s2021.ssts.edu.sg | |
29 | 8/28/2021 11:16:57 | S1-02 | 5 | 20 | 9 | 0.9 | To show the speed of the technician when he is travelling from his workshop to his first customer. | -0.8 | To show the speed of the technician when he is travelling from his first customer to his second customer. | nicole_tan_yitong@s2021.ssts.edu.sg | |
30 | 8/28/2021 17:01:47 | S1-02 | 22 | 20 | 9 | 0.9 | It is the speed of which the technician travelled from his workshop to the first customer's computer | 0.8 | It shows the speed of which the technician travelled from the first customer's computer to the second customer's computer | lohith_ishan@s2021.ssts.edu.sg | |
31 | 8/28/2021 18:00:42 | S1-02 | 3 | 20 | 9 | 1.1 | It is the speed of the car in km/min as it drove from the workshop to the first customer | -1.25 | It is the speed of the car in km/min as it drove from the first customer to the second customer | faith_chong_rui_en@s2021.ssts.edu.sg | |
32 | 8/29/2021 10:55:41 | S1-02 | 23 | 20 | 9 | 0.9 | The gradient is the speed at which the technician drove to his customer. | -0.8 | The absolute value of the gradient is the speed at which the technician drove from the first customer to the second customer. | nikola_winata@s2021.ssts.edu.sg | |
33 | 8/29/2021 16:34:04 | S1-02 | 28 | 20 | 9 | 0.9 | the speed the technician travelled at | -0.2 | the speed the technician is travelling back | yiau_dee_yuan@s2021.ssts.edu.sg | |
34 | 8/29/2021 19:51:21 | S1-02 | 2 | 20 | 9 | 0.9 | It is the speed that he travelled to the first customer. | -0.8 | It is the speed that he travelled on the way back before stopping for another customer. | sai_neha@s2021.ssts.edu.sg | |
35 | 8/29/2021 20:00:37 | S1-02 | 25 | 20 | 9 | 1 | It is to show the speed in which the technician travels. | -0.8 | It is to show the speed in which the technician travels. | sean_ulric_chua@s2021.ssts.edu.sg | |
36 | 8/29/2021 22:47:20 | S1-02 | 24 | 20 | 9 | 0.9 | It is the speed that the technician drove at. | -0.8 | It is the speed that the technician drove at. | ryan_tung_tze_jin@s2021.ssts.edu.sg | |
37 | 8/30/2021 10:12:02 | S1-02 | 8 | 20 | 9 | 0.9 | The gradient represents the rate at which the technician travelled to the first customer's home from his workshop. | 0.8 | The gradient represents the rate at which the technician travelled to the second customer's home from his first customer's home. | yoon_kay_khaing@s2021.ssts.edu.sg | |
38 | 8/30/2021 12:41:50 | S1-02 | 1 | 20 | 9 | 0.9 | It shows the speed of the travel of the technician in km/min | -0.8 | It shows the technicians speed when going to his second customer in km/min | amira_tasneem@s2021.ssts.edu.sg | |
39 | 8/30/2021 22:19:12 | S1-02 | 4 | 20 | 9 | 54 | It shows the speed at which the technician was travelling from his workshop to his first customers house. | 48 | It shows the speed at which the technician was travelling from his first customers house to his second customers house. | natalie_ruzsicska@s2021.ssts.edu.sg | |
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