Sing a Song: Chorus Repetition

Learning Objectives Identify the repeating part (chorus) in a simple song. Explain that a loop means 'do something again and again'. Use a 'repeat' command to represent a song's chorus. Create a simple sequence of actions that includes a loop. Predict what a simple program with one loop will do. Find a mistake in a loop that repeats too many or too few times. Do you love to sing songs? 🎤 What part of a song do you sing over and over again? Today, we will learn about repeating parts. In computer science, this is called a loop! 🔄 Loops help computers do jobs many times without getting tired. Real-World Applications Singing the chorus of 'Wheels on the Bus' 🚌 Clapping your hands three times in a row 👏 A robot vacuum cleaning back...

TermDefinitionExample SequenceA list of steps that happen in order.First, you stand up. Then, you stretch. 🧍‍♀️ RepeatTo do the exact same thing again.A cat might repeat the sound 'meow'. 😺 Loop 🔄A command that tells a computer to repeat steps.A loop can say: 'Repeat 3 times: Jump!' 🤸 ChorusThe part of a song we sing many times.In 'Twinkle, Twinkle, Little Star,' the main part is the chorus. ✨ AlgorithmA set of instructions to finish a task.Your algorithm for getting ready is: wake up, brush teeth, get dressed. ☀️ CommandA single instruction for a computer.A command can be 'Move forward' or 'Say hello'. ➡️

The Repeat Block REPEAT [number] TIMES { DO [action] } Use this to make an action happen more than once. Put the action inside the block. Finding the Pattern Look for actions that are exactly the same. 👀 If you see 'Hop, Hop, Hop', the pattern is 'Hop'. You can put that in a loop! Counting the Repeats Count how many times the pattern happens. 🔢 Count carefully to tell the computer the right number for the loop.