4.1Rising+and+Falling+Temperatures

Investigation 4.1 and follow up A
 * Suppose the temperature changed by an average of +3 degrees per hour for a ten hour period. Copy and complete the table below and use it to**
 * find the total temperature change for the first 5 hours.**


 * **Number of hours 1** || **2** || **3** || **4** || **5** ||
 * **Total change in temperature 3 degrees** || **6 degrees** || **9 degrees** || **12 degrees** || **15 degrees** ||


 * 2 write a multiplication sentence that represents the change of temperature for the first five hours and the first ten hours**

3 times 5 equals 15 2 times 10 equals 30

B **suppose the temperature changed by an average of -3 degrees for a ten hour period, copy and complete the table below for the first five hours and write a multiplication sentence below that represents the first 10 hours**


 * **Number of hours 1** || **2** || **3** || **4** || **5** ||
 * **Total change in temperature**
 * -3 degrees** || **-6 degrees** || **-9 degrees** || **-12 degrees** || **-15 degrees** ||

10 times -3 equals – 30 degrees

1 0+2+2+2=6 2 3*2=6
 * C 1 write the addition sentence illustrated by each diagram below**
 * 2 write the addition sentence illustrated by each diagram below**
 * -7 || -6 || -5 || -4 || -3 || -2 || -1 || 0 || 1 || 2 || 3 || 4 || 5 || 6 || 7 ||

1 0-3-3=6 2 2*-3=6
 * -7 || -6 || -5 || -4 || -3 || -2 || -1 || 0 || 1 || 2 || 3 || 4 || 5 || 6 || 7 ||

1 0-2-2-2-2=-8 2 -2*4=-8
 * -7 || -6 || -5 || -4 || -3 || -2 || -1 || 0 || 1 || 2 || 3 || 4 || 5 || 6 || 7 ||