Lesson Example Discussion Quiz: Class Homework |
Step-3 |
Title: Common ratio |
Grade: 9-a Lesson: S4-L3 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Is a,3a,5a,7a,9a.. an arithmetic progression ? |
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2 |
Step |
Given series is: a,3a,5a,7a,9a.. |
|
3 |
Clue |
Let |
\$ a_1 = a,a_2 = 3a,a_3 = 5a\$ |
4 |
Formula: |
Common difference |
\$ d = a_2 - a_1\$ |
5 |
Hint |
Substitute \$a_1,a_2\$ values in formula |
\$d = 3a - a \$ |
6 |
Step |
After simplification |
\$ d = 2a \$ |
7 |
Clue |
Substitute \$a_2,a_3\$ values in formula |
\$d = a_3 - a_2 = 5a - 3a \$ |
8 |
Step |
After simplification |
\$ d = 2a \$ |
9 |
Step |
Hence,the common difference is |
2a |
10 |
Step |
Therefore,the sequence a,3a,5a,7a,9a.. is an arithmetic progression |
11 |
Tutor: Questions
| Seq | Type | Question | Audio |
|---|---|---|---|
1 |
Problem |
What did you learn from this problem? |
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2 |
Clue |
What did you learn from the clues? |
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3 |
Hint |
What did you learn from the Hints? |
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4 |
Step |
What did you learn from the Steps? |
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5 |
Step |
How can we improve the Steps? |
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