Algorithms, Blocks and Coding with Scratch for Primary 4
An algorithm is an ordered plan for solving a problem. Scratch turns such plans into connected coding blocks that direct a character's actions.
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Royal Alikor is an educator with six years of classroom teaching and three years of elementary school leadership experience and is still teaching. He develops and reviews practical, curriculum-aligned learning materials for Nigerian schools and teachers.
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An algorithm is an ordered plan for solving a problem. Scratch turns such plans into connected coding blocks that direct a character's actions.
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Scratch Pen blocks allow sprites to leave lines as they move. Changing direction, colour and pen position creates drawings and geometric patterns.
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Sequence is the order in which instructions run. Changing that order can change the result, even when a program contains exactly the same…
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Robots are machines designed to perform tasks automatically or with human control. Sensors and programmed instructions help them respond to their surroundings.
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Robots combine parts such as sensors, controllers, motors and power supplies. Each component helps the machine detect conditions or carry out movements.
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Peripheral devices connect to a computer to extend what it can do. Keyboards and mice provide input, while printers and speakers provide output.
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A digital device has components that perform different tasks. Screens show information, keyboards enter data, and processors handle instructions.
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Digital devices have changed from large, limited machines to smaller, more powerful tools. Their development has made information easier to process and share.
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Digital devices process and store information electronically. Phones, tablets and computers support communication, schoolwork and everyday tasks.
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حمل رجل صبياً على كتفيه ثم نسي وجوده، فظل يسأل الناس عنه. تكشف القصة مفارقة طريفة وتبيّن ضرورة الانتباه لما حولنا قبل إطلاق…
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أراد ملك تغطية الطرق بالجلد حتى لا تؤلم قدميه، فنصحه مستشار بارتداء نعل بسيط. تبيّن القصة أن تغيير سلوك الفرد أسهل من تغيير…
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وقف الحسود والبخيل أمام ملك وعد أن يعطي الثاني ضعف ما يأخذه الأول. تكشف القصة كيف يدفع الحسد والبخل الإنسان إلى قرارات مؤذية.
Read guide→Pick your class and subject. SurePass opens the matching lesson shelf and keeps the clock with you as you move around the site.
You stayed with it for 25 focused minutes. That counts.