Hide and Seek Class 4 Notes Maths Chapter 2 Free PDF

Introduction

Imagine you’re playing a fun game of hide and seek with your best friends at school. You’re hiding under a table, behind the curtain, or maybe inside the cupboard. You're trying hard not to giggle or make a sound!

Now suddenly, someone finds you!
You ask, “How did you see me?!”
They smile and say, “I was looking from the top!”

That’s right! Things look very different when we look at them from different sides whether it is from the top, from the front, or from the side. Just like in video games or puzzles, you have to look at the whole scene carefully to find clues.

This chapter is all about seeing and understanding the space around us in a fun and smart way! You will learn:

• The difference between a top view, side view, and front view of the same object. A book may look like a rectangle from the top, but just a line from the side!
• Using positions like left, right, top row, middle row, first column, etc., we’ll learn how to describe exactly where something is—just like giving clues in treasure hunts!
• How to use and draw maps and follow paths.

Views of Objects

• Objects can be seen from different angles: top view, front view, and side view.
• The same object looks different depending on the view.
• For example, a brick drawn by Mini, Bholu, and Rani looks different because each child drew a different view (top, front, or side).
• The top view (Bholu's drawing) shows the shape from above, the front view (Mini's drawing) shows the face from the front, and the side view (Rani's drawing) shows the side of the object.

Example of a 3D Shape:

A 3D shape can be viewed from the top, from the side and from the front and these views can be combined to visualise what the solid looks like.
Thus, we see that a cuboid appears to be rectangle, when viewed from any direction. Now, let us see the different views of a car, which is a 3D shape.

Identifying Views

• Different objects can be recognised by their views.
• For example, a tree looks like a circle from the top and a triangle from the front.
• Drawings of objects like chairs, tables, pencils, erasers, and bottles show different shapes based on their views.

Example 1: Mini draws her water bottle from three views. Top view: Circle, Side view: Rectangle and Front view: Rectangle.

Ans: Mini’s bottle is shaped like a cylinder. Cylinders look like:

• A circle from the top

• A rectangle from the front and side

Try it Yourself!
 Take a matchbox or pencil box and draw it while looking at it from the top, front, and side. Each view gives a different picture!

Understanding Positions in a Grid 

What is a Grid?

A grid is a table made of rows and columns. It helps us show the position of objects clearly. Each square in the grid has its own place using:

• Rows (go left to right)
• Columns (go up and down)

We can use grids to give clues, draw objects, and find positions, just like in a game!

Grid Game- Give clues and draw objects

Here are the clues given by Rani to fill the grid:

• An eraser at the top right corner → That’s Row 3, Column 3
• A pencil in the top left corner → That’s Row 3, Column 1
• An apple in the middle of the second row and second column → That’s Row 2, Column 2
• A water bottle in the third row and second column → That’s Row 1, Column 2
• A football is already drawn in the bottom left corner → That’s Row 1, Column 1

You keep following the clues until you reach the treasure!

Grid Game - Treasure Hunt

In this activity:

• One player hides a treasure (thinks of an object in the grid).

• The other player tries to find it by following clues and steps like:

  • “Take 2 steps up and 1 step left.”

  • “Now you are still 2 steps away!”

 Let's see how Jagat and Mini are playing.

What object did Jagat think of?

Jagat thinks of a Mango.

Drone Around the School

Gyan brought a drone, a small flying camera that can take pictures from above. He used it to take a top view of the school, and now his friends can see the whole school from the sky!

The drone helps to see:

• Buildings
• Playground
• Paths and parks
• Classrooms and school areas

This is called a top view, it’s like looking down at the school from the sky!

Exploring Paths and Directions

• A sight map provides a visual layout of a place, such as a school, showcasing various areas like classrooms, a stage, and a kitchen.
• On a map, we can trace different paths to navigate from one location to another, like going from the Grade 4 classroom to the stage.
  
• These paths can differ in length, with some being shorter and more direct than others.
• Directions are given using terms like left, right, up, or down to help someone find their way.
•  For example, to get to the sports room from the entrance, one would have to follow these steps : 
  i)  From the Entrance, go straight.
  ii) Turn right after passing the Principal’s Office.
  iii) Continue straight through the Middle Wing corridor.
  iv) Turn left toward the Primary Wing.
  v)The Sports Room will be on your left, just after the Medical Room.

It’s important to note that in grid games or maps, diagonal movements are not permitted.

Example 2: Fill in the table below by writing the correct top view and side view for each object:

Ans: