Mathematical+Reflections,+p.+17

AB, Block-c,Date-27th march Big Idea Negative numbers help us to model many real world situations Ans- Positive numbers mean the team answered questions correctly, negative numbers mean mean the team answered the questions incorrectly and zero means the team couldn't answer any question. In temperature reading a positive number means the weather is hot and the negative number means the weather is cold and zero means the weather is normal and perfect. Ans-a) We need to use a number line if we want to compare 2 positive numbers. If the number has greater distance from zero then the number is greater then the other number. Example:- 5 >4 b) We also need to use a number line to compare 2 negative numbers. If the number has greater distance from 0 then the smaller it is then the other number, and the smaller the distance from zero the greater the number. Example: -3>-8 c)If you want to compare a positive and a negative number, you should always use a number line. In a number line numbers on the right hand are greater then the numbers on the left hand. Example: 4>-2 Ans- Positive numbers are located on the right hand side and the negative numbers are located on the left hand side. Between the numbers fraction and decimals are included.
 * Q1. Describe what a positive numbers, negative numbers and zero mean in the terms of**
 * **Keeping score in Math Mania**
 * **Temperature Readings**
 * Q2- Describe how to compare the following types of numbers to decide which is greater. Use examples to illustrate your thinking.**
 * **2 positive numbers**
 * **2 negative numbers**
 * **a positive number and a negative number**
 * Q3-Describe how to locate numbers on a number line. Use examples to illustrate your thinking be sure to include positive and negative numbers as well as fractions and decimals in your examples.**

__**Summary**__ In this chapter we learned about negative and positive numbers which were really fun to learn about. We learned what a number line is. We learned that on the left hand side there is always negative numbers and on the right hand side there are positive numbers and between them are decimals and fraction numbers included. In this chapter we also learned how to calculate negative and positive numbers.