Question 1
Build it in Your Imagination
We will start this section by practising visualisation. For each prompt, feel free to talk to your partner, gesture, draw it in the air — but do not actually draw on paper!
- Picture your name, then read off the letters backwards. Make sure to do this by sight, not by sound — really see your name! Now try with your friend's name.
This exercise helps us practice visualizing objects in our minds.
Step 1 — Visualizing My Name
First, we need to clearly picture our own name.
Let us imagine the name JOHN written in our mind.
We will see each letter, one by one.
We will focus on the shapes of the letters.
Step 2 — Reading Backwards by Sight
Now, we will read the letters from right to left.
We start with the last letter we see.
For JOHN, the last letter is N.
Then we see the letter before it, which is H.
Next, we see the letter O.
Finally, we see the first letter, which is J.
So, JOHN read backwards by sight is NHOJ.
Step 3 — Visualizing a Friend's Name
Let us try this with a friend's name.
For example, we will use the name MARY.
We will picture MARY clearly in our mind.
We see the letters: M, then A, then R, then Y.
Step 4 — Reading Friend's Name Backwards
Now, we read the letters of MARY from right to left.
The last letter we see is Y.
Then we see the letter R.
Next, we see the letter A.
Finally, we see the letter M.
So, MARY read backwards by sight is YRAM.
Answer
(i) My name (e.g., JOHN) read backwards by sight: NHOJ (ii) My friend's name (e.g., MARY) read backwards by sight: YRAM
More questions in A
Build it in Your Imagination
We will start this section by practising visualisation. For each prompt, feel free to talk to your partner, gesture, draw it in the air — but do not actually draw on paper!
- Picture your name, then read off the letters backwards. Make sure to do this by sight, not by sound — really see your name! Now try with your friend's name.
Cut off the four corners of an imaginary square, with each cut going between midpoints of adjacent edges. What shape is left over? How can you reassemble the four corners to make another square?
Mark the sides of an equilateral triangle into thirds. Cut off each corner of the triangle, as far as the marks. What shape do you get?
Mark the sides of a square into thirds and cut off each of its corners as far as the marks. What shape is left?
Net of a sphere? Experiment and see if you can make a paper cutout that can perfectly wrap around a ball without leaving any wrinkles, gaps or overlaps.
Place an object in front of a plane, such as a wall of your room. Shine a torch light on the object in a direction perpendicular to the wall.
What do you see?
Observe what happens to the size of the shadow as you vary the distance between your torch and your object.
Context: Observe what happens to the size of the shadow as you vary the distance between your torch and your object.
Q. Why does this happen?
Construct a model of a cube and use your hands to keep it balanced on one corner vertex. Can you try to understand why all the projected edges have equal length?