Lesson 2 substitution

Entry Activity

1

2

3

4

5

6

7

8

9

Using your planners show me how you found this

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

Go

Remember in SILENCE

You have 1 ½ minutes

Now see how many you can get in a pair

Which pair has got the most?

Using your planners show me how you found this

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

Using your planners show me how you found this

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 √

Extension Activity – Level 6

Answers – Extension Level 6

1 313.6 m

2 37.4 km

Using your planners show me how you found this

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 √

Plenary

One thing I need to

remember for next time is...

One thing I have learned

today is...