Computer Science
Grade 1
20 min
Predicting the Next Step
Predict what comes next in a given pattern.
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1
Introduction & Learning Objectives
Learning Objectives
Identify a simple repeating pattern.
Describe the 'rule' of a pattern.
Predict the next item in a sequence.
Create their own simple A-B or A-B-C pattern.
Explain why their prediction is correct.
Find patterns in daily routines like getting ready.
If you see a cat ๐, then a dog ๐, then a cat ๐... what animal comes next? ๐ค
We will learn about patterns! Patterns help us guess what comes next. This is a super skill for solving puzzles and giving instructions to a computer.
Real-World Applications
Knowing the next step in a song ๐ต
Getting dressed in the morning ๐๐
Following a recipe to bake cookies ๐ช
Playing games like Simon Says ๐ง
2
Key Concepts & Vocabulary
TermDefinitionExample
PatternA pattern is something that repeats over and over again. ๐Red block, blue block, red block, blue block... is a pattern.
SequenceA sequence is a list of things in a special order. โก๏ธ๐, ๐, ๐ is a sequence of fruits.
RuleThe rule tells us how the pattern works. It is the secret code! ๐คซIn the pattern โ๏ธ, ๐, โ๏ธ, ๐... the rule is 'sun then moon'.
PredictTo predict means to make a smart guess about what is next. ๐ฎI predict the next color will be green.
StepA step is one single thing in a pattern or a set of directions. ๐พThe first step is to pick up a pencil.
3
Core Syntax & Patterns
Look and Say Rule
Say the pattern out loud.
Use this first! Hearing the pattern can help you find what repeats.
Find the Core Rule
Find the smallest part that repeats.
Look for the group of items that happens again and again.
Check Your Guess Rule
Does your guess follow the rule?
After you predict, check if it fits the pattern you found.
4 more steps in this tutorial
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Challenging
The rule is: IF a light is green ๐ข, THEN you go. IF a light is red ๐ด, THEN you stop. The light is red. What is your next step?
A.Go
B.Stop
C.Look both ways
D.Run
Challenging
The pattern is ๐ต, ๐ด, ๐ต, ๐ด, ... What color will the 7th circle be?
A.๐ต
B.๐ด
C.๐ข
D.๐ก
Challenging
Look at two patterns. Pattern 1: A, B, C, A, B, C... Pattern 2: 1, 2, 1, 2... If we put them together, what comes after 'A1, B2, C1, ...'?
A.C2
B.A1
C.B2
D.A2
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