Showing posts with label Puzzles. Show all posts
Showing posts with label Puzzles. Show all posts

Sudoku Puzzle Book by Amin Buhari - Omtex Classes

Sudoku Puzzle Book by Amin Buhari

Unlocking the potential of the human mind often requires nothing more than a pencil, a grid, and a spark of logic. We are thrilled to present the Sudoku Challenge Book, meticulously curated by Amin Buhari, a seasoned educator and the visionary behind Omtex Classes. For over two decades, Amin Buhari has dedicated his life to shaping young minds in the classroom. Now, he extends his passion for teaching into the realm of cognitive development through this carefully designed collection of Sudoku puzzles.

In an era dominated by digital distractions, the classic art of Sudoku offers a refreshing sanctuary for mental focus. This book is not merely a collection of random grids; it is a structured journey intended to enhance critical thinking and problem-solving skills. Whether you are a student preparing for competitive exams, a professional looking to sharpen your analytical abilities, or simply a puzzle enthusiast seeking a relaxing yet stimulating pastime, this book serves as an excellent companion.

Why Sudoku?
Sudoku is celebrated globally as a premier brain-training exercise. It does not require complex mathematical knowledge—only logic and patience. Engaging with these puzzles helps improve concentration, memory retention, and logical reasoning. The satisfaction of placing that final number and seeing the grid complete is unparalleled. It teaches resilience; when you hit a roadblock, you learn to step back, reassess, and find a new path—a valuable lesson for both academics and life.

What sets this specific collection apart is the philosophy behind it. Created by a Master of Commerce and a veteran educator, this book is not just a commercial product but a labor of love. Amin’s transition from the chalkboard to the writing desk represents a lifetime of experience distilled into engaging formats. He understands that learning happens best when the mind is engaged and entertained. These puzzles are crafted to simulate the kind of critical thinking required in academic subjects like Mathematics and Accountancy, making them perfect warm-up exercises for study sessions.

Furthermore, the clean layout and accessible design provided by Omtex Classes ensure a seamless user experience. Whether you are viewing this on a tablet, smartphone, or printing it out for a physical copy, the clarity of the grids ensures that your focus remains uninterrupted. We believe that educational resources should be accessible to all, and this digital publication is a step towards making high-quality mental exercises available to students and learners everywhere.

Published by

Amin Buhari, M.Com

OMTEX Classes

www.omtexclasses.com

Email: contact@omtexclasses.com | feedback@omtexclasses.com

About the Author

After spending 20 valuable years educating students, I am now entering the wonderful world of writing. I used to narrate lessons as stories in the classroom; now, I craft life’s lessons into captivating tales. The hands that once wrote on the blackboard are now creating a world of imagination on paper. My writing is a true blend of a teacher's maturity and a creator's imagination.

— Amin Buhari, M.Com

Copyright © 2026 Amin Buhari. All rights reserved.

Book Preview & Puzzles

Sudoku Book Cover Page - Omtex Classes Publisher Information Page Sudoku Question 1 Sudoku Question 2         Answer Keys 1-4 Answer Keys 5-8  About the Author Book Back Cover

Exploring Tangrams and Tiling Patterns | 3rd Grade Maths Geometry

Tangram and Tiling

3rd Maths : Term 1 Unit 1 : Geometry

Tangram

Tangram is a traditional Chinese puzzle made of a square divided into seven pieces (one parallelogram, one square and five triangles) that can be arranged to match particular designs.

Create shapes using tangram pieces

Tangram is a traditional Chinese puzzle made of a square divided into seven pieces (one parallelogram, one square and five triangles) that can be arranged to match particular designs. We can make many figures of animals people and other things. Simplified version of tangram puzzle is available with five pieces also.

5 pieces tangram

look at 5 pieces of the tangram. cut the 5 pieces from a paper with help of your elders and try make the given shapes out of it.

Five pieces of a tangram and various shapes made from them like a boat, house, and rocket.

Try this

How many triangles are there in a five piece tangram set? Are they equal in size?

Answer: There are three triangles. 2 and 5 equal in size, but 1 is different in size.

7–pieces tangram

Here is the picture of a seven–piece tangram. You can cut out these pieces from a paper and put them together in different ways to make some very interesting shapes.

Teacher’s note: Teacher can enable the children create various shapes using the tangram sets.

A seven-piece tangram with numbered pieces.

Practice

Number the pieces in each of these figures according to the numbering in the tangram puzzle.

Practice exercise: a swan and a person shape made from tangram pieces for students to number.
Practice exercise: a house and a fish shape made from tangram pieces for students to number.

Tiling and Tessellation

Tile a given region using a tile of given shape.

When you fit individual tiles together with no gaps or overlaps to fill a flat space, you have a tiled floor.

Observe the pictures

Examples of tiled floors with different patterns.

Baked clay in the form of a shape that is used to cover surfaces is called tile.

Let us Explore

There are some shapes that cannot be used to make tiling patterns why? what are they? Name them and give reasons.

Shapes that are difficult to use for tiling, like circles and irregular shapes.

Answer: opposite side or diagonals must be equal for tiles to join. Some shapes that cannot be used to make tiling patterns are Circles or ovals. Both have no opposite side to joint.

Practice

Complete the following tiling pattern.

A tiling pattern for students to complete.

When we repeat individual tiles or patterns together with no gaps or overlaps to fill a flat space, the arrangement is called tessellation (or tiling).

Activity 6

Tessellate a new region using the following shapes:

Shapes like squares, triangles, and hexagons to be used for tessellation.
An example of tessellation with triangles.

Triangles, squares, hexagons are the regular polygons tessellate in the plane.

Here

Tessellation patterns made with squares and hexagons.

Distinguish between shapes that tile and that do not tile.

Observe the following pictures that do not tile.

Examples of shapes like pentagons and heptagons that do not tile perfectly, leaving gaps.

Though pentagons and heptagons are regular polygons they do not tessellate.

Activity 7

Ask the children to draw tessellate in the plane region using square and pentagon.

An activity showing how squares can tessellate perfectly, while pentagons leave gaps when tiling.