Reminder You have already completed the bridging booklet
Reminder You have already completed the bridging booklet chapter 7 Indices and you will have met Surds in GCSE mathematics If you are already fluent in this topic - Use the rules to simplify and ‘rationalise’ with surds do the workbook questions and check with your teacher Go on to …
• KUS objectives BAT simplify and rationalise surds BAT solve equations using the rules for indices and surds Starter: find the matching pair
Area puzzle What is the area of the rectangle? 12 cm 2 27 cm 2
More Area puzzles What is the area of each rectangle? 18 cm 2 Explain your results 24 cm 2 6 cm 2
More Area puzzles questions We have: Can you give another multiplication of surds that makes 12?
Explain this working
WB 19 simplify Try these: Rules for square roots
Practice 1 8 800 5 3 2 32 7 7 50 2 5 5 72 180 72 6 5 √ 20 7√ 21 5 14 7 3 12 5 50
Activity Work in pairs
Practice 2 40 32 75 98 300 12
Notes: reminder. There are two ‘rules’ of square roots ab = a b for example: and a/ b = a/ b
KUS objectives BAT simplify and rationalise surds BAT solve equations using the rules for indices and surds self-assess One thing learned is – One thing to improve is –
END
- Slides: 14