###### Mariella Galea

###### April 19, 2020

###### 10:42 am

### This Lesson Was Contributed By:

Mathematics Department

### This Lesson is For:

### Lesson Duration:

200 mins.

#### What Should You Expect From This Lesson?

At the end of this lesson you will be able to: [1] Derive a formula from a situation involving two or more unknown values with positive inputs. [2] Simplify linear algebraic expressions by collecting like terms. [3] Simplify algebraic expressions by multiplying linear positive terms, e.g. 4 Ã— 5b ; 2a Ã— 3b and can multiply a single positive term over a bracket, e.g. 3(x + 4) [4] Evaluate linear expressions by substituting positive integers. [5] Use the BIDMAS rule with positive numbers.

#### How To Carry Out This Lesson At Home:

**Lesson [1] I can derive a formula from a situation involving two or more unknown values with positive inputs.**

**Watch the following video:**

1. How to create a formula from a maths word problem

https://www.youtube.com/watch?v=7sY7fZtS8bc

**Suggested Practice:**

Formula One A2 Student Book Page 151: Number 1, 2

Formula One A2 Practice Book Page58 Number 1

Worksheet 1: Writing Formulae

Check your answers (document attached in resource section)

**Lesson [2] I can simplify linear algebraic expressions by collecting like terms.**

**Watch the following videos:**

1. Collecting like terms.

https://www.youtube.com/watch?v=CLWpkv6ccpA

https://www.youtube.com/watch?v=1DgDt6gCUKs

**Suggested Practice:**

Formula One A2 Student Book Page 241 Number 2

Formula One A2 Practice Book Page 93, 27.3 Number 2

Worksheet 2: Operations in Algebra Exercise 1

Check your answers (document attached in resource section)

**Lesson [3] I can simplify algebraic expressions by multiplying linear positive terms, e.g. 4 Ã— 5b ; 2a Ã— 3b and can multiply a single positive term over a bracket,Â Â Â Â Â Â Â e.g. 3(x + 4)**

**Watch the following video:**

Multiplying linear positive terms

1. https://www.youtube.com/watch?v=2QhPDNqMmZY

(1st 4:30 minutes of the clip.)

2. Multiply a single positive term over a bracket

https://www.youtube.com/watch?v=_O2ZtkC75Yg

https://www.youtube.com/watch?v=v-6MShC82ow

(1st 6:43 minutes of the clip.)

**Suggested Practice:**

Formula One A2 Student Book Page 237 Number 4

Formula One A2 Practice Book Page 92, Number 5

Worksheet 2 â€“ Operations in Algebra Exercise 2

Check your answers (document attached in resource section)

**Lesson [4] I can evaluate linear expressions by substituting positive integers.**

**Watch the following videos:**

Algebra â€“ Using Formulas

1. https://www.youtube.com/watch?v=nARfQA8Vz6c

2. https://www.youtube.com/watch?v=vYFYZpI8PEM

(1st 7:14 minutes of the clip)

**Suggested Practice:**

Formula One A2 Student Book Page 153 Numbers 1-5

Formula One A2 Practice Book Page 59; Numbers 1-4

Worksheet 3 â€“ Formulae

Check your answers (document attached in resource section)

**Lesson [5] I can use the BIDMAS rule with positive numbers.**

**Watch the following video:**

Order of Operations BIDMAS

https://www.youtube.com/watch?v=xbP5fSyQ-S8

**Suggested Practice:**

Formula One A2 Student Book Page 239 Numbers 1-3

Formula One A2 Practice Book Page 93 (27.2) Numbers 1-2

Worksheet 4 â€“ BIDMAS

Check your answers (document attached in resource section)

**Acknowledgements: Mathematics Heads of Department**