1. 1,3,5,7,9 0,2,4,6,8 Chris Clements Properties of Number Odds and Even Numbers

2. Learning Objective:

3. Whole numbers (numbers that we count) can also be called odd or even numbers. This includes numbers like 1, 2, 3, 4… 136… 5265… and many, many more… Odds and Evens In this lesson you will learn about odd and even numbers

4. When choosing two equal teams; it is best to have an even number of participants. Do you know why? Lets see;There are 10 ants who need to put into two equal teams. Can it be done? Team ATeam B Can you see why 10 is an even number?

5. How many ants are there now? 10 + 5 = 15 so we now have 15 ants. Five more ants come along. What will happen when we put them into 2 teams? Team ATeam B Can you see why 15 is an odd number? I’m the odd one out!

6. Odd numbers end in a 1, 3, 5, 7 or 9 Even Numbers Even numbers end in a 0, 2, 4, 6 or 8 Odd Numbers All the numbers in the 2 times table are even. If a number is not in the 2 times table then it is odd.

7. Look at this number grid; 12345678910 11121314151617181920 21222324252627282930 31323334353637383940 41424344454647484950 51525354555657585960 61626364656667686970 71727374757677787980 81828384858687888990 919293949596979899 100 12345678910 11121314151617181920 21222324252627282930 31323334353637383940 41424344454647484950 51525354555657585960 61626364656667686970 71727374757677787980 81828384858687888990 919293949596979899 100 12345678910 11121314151617181920 21222324252627282930 31323334353637383940 41424344454647484950 51525354555657585960 61626364656667686970 71727374757677787980 81828384858687888990 919293949596979899 100 All these numbers can be called odd or even. What do you notice about the odd numbers? What do you notice about the even numbers?

8. continued When finding odds and even numbers; 1) Look at the end digit (the units digit) 2) If it ends in a 0, 2, 4, 6 or 8 then the number is even 3) If it ends in a 1, 3, 5, 7 or 9 then the number is odd Odds and Evens Steps to success

9. Lets see how good you are; Sort these numbers into two groups; odds and evens. Odd Even

10. Lets have a go at some more; OddEven

11. Lets have a go at some more; Odd Even

12. Activity

13. Plenary Which numbers do not belong in this set? Odd Using these digit cards make an even number. The hundreds digit is greater than 3.