Welcome to the 1520 Perfect Dictionary

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Class-book
CLASS-BOOK

Definition: A book used in class teaching.
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* All six elements should be in.

* [See perfect school teaching.]


1. Purposeful and necessary as guide.

2. Authorized/approved by regulators.*

3. Contents therein are all complete.

4. Clearness in the print is assured.

5. Available whenever needed for use.**

6. Definitely serving its purpose(s).
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1. Syllabus demands the book.

* To be the current edition (if applicable), as published.

Used daily.

Used timely.

Used rightly.

Used sensibly.

** No knowing contents by heart or rote to not be used.

6. The students are learning.

1520 Products

1520 Products was established in 2005 with the purpose of entertaining and teaching us on key and important aspects of life (such as marriage, sex, etc) through the playing of games which will allow us to laugh but at the same time pass a message of what is the right or ideal way.

1520 Sex Game

1520 Puzzles

1520 Marriage Game