class 4 Flip book for online

Objective Questions 1. Answer the following questions: a. Why do you use CS command ? When do you feel, it is most essential to use. Ans: ............................................................................................................................ ..................................................................................................................................... ..................................................................................................................................... .................................................................................................................................... b. Why do you use BYE command? Is it necessary? Ans: ............................................................................................................................ ..................................................................................................................................... ..................................................................................................................................... .................................................................................................................................... c. When do you hide the Title? Is it essential for this situation? Ans: ............................................................................................................................ ..................................................................................................................................... ..................................................................................................................................... .................................................................................................................................... d. When do you PD command ? Why do you feel the essential ? Ans: ............................................................................................................................ .................................................................................................................................... .................................................................................................................................... .................................................................................................................................... e. When do you use PE command ? Why do you feel it essential ? Ans: ............................................................................................................................ Page More on LOGO 146

..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... .................................................................................................................................... f. Write the advantages of REPEAT command? Do you have any alternate of REPEAT command to draw shape? Ans: ............................................................................................................................ ..................................................................................................................................... .................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... g. What is the right situation to use PENNORMAL command ? Ans: ............................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ ................................................................................................................................ h. When do you use PU command ? Is there any alternate of PU command? Ans: ........................................................................................................................... .................................................................................................................................... .................................................................................................................................... .................................................................................................................................... Smart Page Computer Science Book-4 147

Case Study 1. Samikchya Chaudhary is in the computer practical exam. She gets a question to draw a square in the MSW LOGO. She has had drawn a square by giving the long set of instructions. When she asked the teacher to look her work, teacher was not satisfied because, the square had not displayed perfectly. Due to the Turtle, it looked horrible. Due to this she could not get full marks. Now, it's your turn, which technique you use to solve this case. Write in the given space. Required output Samikchya's output Solution 2. Niru Ghale is assigned a work to draw a shape. She has drawn a straight line by 100 point like FD 100. It is not necessary, as ac- cidently drawn, she has to return back in the previous position. Is there any solution? How can she solve this case? Write in detail your logic in details. Page More on LOGO 148

Solution: 3. Sudhir Jha has assigned a task to draw 3 separate same size of circles in a line. But as he has missed important classes so that he could not solve this problem. Which techniques should it be it its? Now, write the plan to solve this problem. Then Write the set of instructions: Solution: Smart Page Computer Science Book-4 149

Skill Test 1. Draw the following rectangles without REPEAT as instructed: Start/End b. a. Start/End c. Page More on LOGO 150

Analytical Problem 2. Type the following set of instructions, and note down the output. Now, you have to analyze and get self convinced for this output: a. CS REPEAT 8 [FD 5 LT 10] b. CS REPEAT 18 [FD 5 LT 10] RT 180 REPEAT 18 [FD 5 LT 10] c. CS RT 135 REPEAT 18 [FD 5 LT 10] LT 135 REPEAT 18 [ FD 5 LT 10] LT 135 REPEAT 18 [ FD 5 LT 10] d. CS REPEAT 4[REPEAT 36 [FD 6 RT 360/36] PU FD 10 PD] e. CS REPEAT 4[ FD 30 RT 150 FD 30 RT 300] Smart Page Computer Science Book-4 151

Project Work-1 1. Draw the following shape, prepare the project and submit to your teacher. This project includes, case study, analytical study, step by step planning and finally set of instructions. a. b. d. c. e. f. Page More on LOGO 152

End of the Session