Class 4- Computational Thinking- Chapter 1 - Shapes Around Us

Chapter 1: Shapes Around Us – Student-Friendly Summaries 1. Finding the Missing Shape Rule: • subtract the smaller block arrangement from the bigger arrangement • match the cubes carefully position-wise After removing the matching cubes, the remaining shape matches option d. Answer: Option d ________________________________________ 2. Opposite Faces of the Cube When the cube net is folded: Opposite face pairs are: • 1 and 6 • 2 and 4 • 3 and 5 Only option c shows opposite faces correctly. Answer: Option c ________________________________________ 3. Shape NOT Possible with One Straight Cut A single straight cut on a rectangle can form: • 3-sided shape • 4-sided shape • 5-sided shape But: • a 6-sided shape cannot be formed Answer: Option d ________________________________________ 4. Counting Triangles Carefully count: • small triangles • combined larger triangles Total triangles = 4 Answer: Option a ________________________________________ 5. Odd One Out Rule: • letter inside shape = first letter of shape name • number inside shape = number of sides Only option a does not follow the rule. Answer: Option a ________________________________________ 6. Finding the Missing Shape Rule: • add the sides of the two yellow shapes • result gives the number of sides of the middle shape Square = 4 sides Parallelogram = 4 sides 4 + 4 = 8 So, the missing shape must have 8 sides. Answer: Option b ________________________________________ 7. Minimum Colours for Prism A triangular prism has: • 3 rectangular faces touching one triangle face All adjacent faces need different colours. Minimum colours needed = 4 Answer: Option c ________________________________________ 8. Replacing A and B Conditions: • same colour cannot repeat in row/column • same pattern cannot repeat • same shape cannot repeat Only option a satisfies all conditions. Answer: Option a ________________________________________ 9. Hidden Faces of Cubes Total cubes = 6 Each cube has: 6 faces Total faces: 6 × 6 = 36 Visible faces = 15 Hidden faces: 36 − 15 = 21 Answer: Option c ________________________________________ 10. Counting Edges We need edges: • with a yellow dot at one corner • without a red dot at the other corner Total such edges = 2 Answer: Option b ________________________________________ Shape Placement Puzzle Shapes NOT Next to Each Other Rules: • one shape in each square • shape colour must differ from square colour • connected squares cannot have same shape After arranging carefully: • black triangle • black circle are NOT next to each other. Answer: Option a Chapter 1 - Shapes Around Us - Computational Thinking SSC Exams (कर्मचारी चयन आयोग) #ssc #ssccgl #chsl #sscmts #sscgd #sscje #ssccpo Banking Exams (बैंकिंग परीक्षाएं) #ibps #ibpspo #ibpsclerk #sbipo #sbiclerk #rbiassistant #rbigradeb Civil Services & State Exams (यूपीएससी और राज्य स्तरीय परीक्षाएं) #upsc #ias #ips #upsccs #pcs #uppcs (या आपके राज्य के अनुसार, जैसे: #bpsc, #mppsc, #ras) Railways Exams (रेलवे भर्ती) #rrb #rrbntpc #rrbgroupd #rrbalp Teaching Exams (शिक्षक पात्रता परीक्षा) #ctet #uptet #stet #tgtpgt #kvs #nvs Defense & Police Exams (रक्षा और पुलिस बल) #nda #cds #afcat #delhipolice #uppolice #agniveer General Educational & Trending Hashtags #governmentexams #sarkarinaukri #competitiveexams #examprep #gkonline #currentaffairs #studygramindia #computationalthinking #summary #grade4ncertsolutions #class4ncertsolutions #creativethinking #criticalthinking #namitarajput #ncertsolutionsmaths #matters #logicalthinking #logicalreasoning #education #educationalvideoforchildren #explanationsinenglish #olympiadclass4 #entranceexam #competitiveexams #trendingvideo #viralvideo