1. Inequalities
L.O.
All pupils understand possible values of inequalities
All pupils can show inequalities on a number line
Some pupils can manipulate inequalities to show their values on a number line

2. Starter:
possible values of inequalities
What are the possible values of x if x>14 and x is an integer?
What are the possible values of x if x>14?
How does the solution change if x≥14?

3. Inequalities
L.O.
All pupils understand possible values of inequalities
All pupils can show inequalities on a number line
Some pupils can manipulate inequalities to show their values on a number line

4. Main 1: What are the possible values of x if x>14?
show inequalities on a number line
What are the possible values of x if x>14?
How could we show this on a number line?

5. Main 1: How does the solution change if x≥14?
show inequalities on a number line
How does the solution change if x≥14?
How could we show this on a number line?

6. show inequalities on a number line
Main 1:
show inequalities on a number line
Ext.

7. How does the fact x>1 relate to the fact –x<-1?
Mini Discussion:
show inequalities on a number line
How does the fact x>1 relate to the fact –x<-1?

8. Inequalities
L.O.
All pupils understand possible values of inequalities
All pupils can show inequalities on a number line
Some pupils can manipulate inequalities to show their values on a number line

9. manipulate inequalities to show their values on a number line
Main 2:
manipulate inequalities to show their values on a number line
2 mins:
How could you show
3x + 7 ≤ 28
on a number line?

10. manipulate inequalities to show their values on a number line
Main 2:
manipulate inequalities to show their values on a number line
3x + 7 ≤ 28
Minus 7 from each side
3x ≤ 21
Divide by 3 on each side
x ≤ 7

11. manipulate inequalities to show their values on a number line
Main 2:
manipulate inequalities to show their values on a number line
x ≤ 7

12. manipulate inequalities to show their values on a number line
Main 2:
manipulate inequalities to show their values on a number line
So they are solved just like equations and then drawn on a number line.
Answer each of the questions below, your working must be shown and your solutions should be shown on a number line.

13. manipulate inequalities to show their values on a number line
Main 2:
manipulate inequalities to show their values on a number line

14. manipulate inequalities to show their values on a number line
Main 2:
manipulate inequalities to show their values on a number line

15. Did anyone solve these questions using different methods to others?
Main 2:
manipulate inequalities to show their values on a number line
Did anyone solve these questions using different methods to others?

16. Inequalities
L.O.
All pupils understand possible values of inequalities
All pupils can show inequalities on a number line
Some pupils can manipulate inequalities to show their values on a number line

17. Plenary: Why might it be useful to show inequalities on number lines?
What might this lead to next lesson?

18. WWW? EBI? Inequalities L.O.
All pupils understand possible values of inequalities
All pupils can show inequalities on a number line
Some pupils can manipulate inequalities to show their values on a number line
WWW?
EBI?