Draw a Circle, Again and Again

Learning Objectives Identify a repeating action in a set of instructions. Explain that a 'loop' means to repeat something. Use a 'repeat' block to draw multiple circles. Predict the outcome of a simple loop that draws circles. Change the number in a loop to draw more or fewer circles. Have you ever wanted to draw a hundred polka dots? 🎨 That would take so long! Today, we will learn a magic trick for computers. It's called a loop! A loop helps the computer do the same thing again and again, super fast. Real-World Applications A blinking light on a toy 🚦 Clapping your hands to a song 👏 A bouncing basketball 🏀 Wheels on a bus going 'round and 'round' 🚌

TermDefinitionExample Instruction ➡️An instruction is one step for the computer to do. It's like a single command.A single instruction is 'Draw one circle.' 🔵 Sequence 🔢A sequence is a list of instructions in the right order. Like steps 1, 2, 3.First, 'Draw a circle.' Then, 'Move forward.' That is a sequence. Repeat 🔁To repeat means to do the exact same thing over again. Like saying 'hello' two times.You can repeat the action of bouncing a ball. Loop 🔄A loop is a special instruction that tells the computer to repeat other instructions.A loop can tell the computer: 'Repeat drawing a circle 3 times.' 🔵🔵🔵 Pattern ✨A pattern is something we see again and again. Loops help us make patterns!A ladybug's spots make a pattern. 🐞...

The Repeat Block REPEAT [number] TIMES [ DO ACTION ] Use this block to make an action happen many times. Put the action you want to repeat inside the block. The Loop Pattern 1. Find the action that repeats. 2. Put it inside a loop. 3. Tell the loop how many times to repeat. This is how we think like a coder! We look for patterns to make our job easier.