What Are Expressions?
Chapter Name : Algebraic Expressions And Identities |
Sub Topic Code : 104_08_09_01_01 |
Topic Name : What Are Expressions? |
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Sub Topic Name : What Are Expressions? |
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Pre-Requisites:
Meaning of Algebra- Numerical description of a problem in alphabets & numbers, Different types of algebraic expressions with multiple variables & powers
Activity:
Throw a ball to your opponent. It moves in a curved way. Every curve has an algebraic expression. This expression gives its distance.
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Algebraic Expressions | Formed out of letters & numbers depending on a particular situation, in order to understand the problem & solve it. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Computer | Take the components of a CPU. Check how many items of a unit part are present inside & the cost of each. Arrive at an algebraic expression which will help you to find the cost of a CPU. |
Places to visit :
Algebraic expressions come over all places.
Practical examples around us
| Examples | Explainations |
|---|---|
| Flying of an air plane | A number of parameters are considered for the same. All of these parameters form an equation & determine the speed at which the plane must move. |
| Distance travelled by a boat | Depends on the speed travelled by the boat and the speed of the stream. You had a lot of these problems earlier. |
What you learn in Theory:
Meaning of algebraic expression. In depth explained by the expression of distance representation on a number line
What you learn in Practice:
All the general daily life activities are directly or indirectly related to algebra