lesson 2 substitution
TRANSCRIPT
Today I will learn to substitute into formulas Level 5
Challenge Objective:
Substitute into formulas involving squares and square roots Level 6
Key Words
Equation, Generate, Substitute, Unknown, Inverse, Square, Square Root, Fraction
•All will find substitute into a formula
•Most will find use substitution to solve problems
•Some will substitute into formulas involving ² or √
Have you heard the key wordsKey Word Never heard
it before Heard it,but I can’t remember the meaning
It means...
Substitute
Square
Inverse
Square Root
Generate
Unknown
Equation
Fraction
Speed thinking• When I have explained how to do this you have a
set time to do each bit.
• When I say start, in silence, write down as many formulas as you can that you have come across in Maths or every day life.
e.g. The formula for area of a rectangle is base x height
or A = b x h
or A = bh
Today I will learn to substitute into formulas Level 5
Challenge Objective:
Substitute into formulas involving squares and square roots Level 6
Key Words
Equation, Generate, Substitute, Unknown, Inverse, Square, Square Root, Fraction
•All will find substitute into a formula
•Most will find use substitution to solve problems
•Some will substitute into formulas involving ² or √
Peer Assessment
On your partners work, mark the work they have done and write:
• 1 thing that they have done well
• 1 thing they need to do to improve
Get ready we will be sharing!
Answers – Level 5
1 a 9 b 43
2 a 26 cm b 62 cm
3 a 55 mph b 45 mph
4 a 32 m/s b 58 m/s
5 a 92 m/s b 75 m/s
6 a 113 °F b 104 °F c 149 °F d 212 °F
Today I will learn to substitute into formulas Level 5
Challenge Objective:
Substitute into formulas involving squares and square roots Level 6
Key Words
Equation, Generate, Substitute, Unknown, Inverse, Square, Square Root, Fraction
•All will find substitute into a formula
•Most will find use substitution to solve problems
•Some will substitute into formulas involving ² or √
Today I will learn to substitute into formulas Level 5
Challenge Objective:
Substitute into formulas involving squares and square roots Level 6
Key Words
Equation, Generate, Substitute, Unknown, Inverse, Square, Square Root, Fraction
•All will find substitute into a formula
•Most will find use substitution to solve problems
•Some will substitute into formulas involving ² or √