1. Feed Back from Test

2. Sum of Cubed Numbers. Lesson 3 Aims: To introduce the sum of cubes formula. To recap the sum of natural numbers and the sum of squares. To practice applying all three.

3. Sum of the cube numbers n ΣnΣnn3n3 Σn3Σn3 1 2 3 4 5 There is a link between the sum of the natural numbers and the sum of the cube numbers. Complete the table below to see if you can spot what it is.

4. Sum of the cube numbers

5. Sum of natural numbers Sum of squares Sum of cubes All three Good news they are all in the formula book, page 4.

6. Using the sum of the cubes formula Example 1 Find:

7. Using the sum of the cubes formula

8. On w/b

10. Past Exam Question 7 mins to try

11. 1.Do ex 2C page22 2.Revision exercise 2 page 23 3.Moodle h/w – check in one week. Past Exam Question