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Hey there! Ready to become a logic detective? Today, we will learn how to solve puzzles using a cool tool called a logic grid.
A logic grid is a puzzle where you match different items together. We use a problem-solving model to analyze clues, make a plan, find the solution, and check our work.
We start by analyzing our clues to find what is true and what is false. We put an 'X' in the grid when a match is impossible, and a green checkmark when a match is certain.
When you find a match, you can cross out all other options in that row and column. This simple plan helps you narrow down the correct answers fast.
Two friends, Leo and Mia, own different pets. One owns a bird, and the other owns a fish. Leo does not own a bird. Let's use our problem-solving model to find out who owns each pet, and make sure our answer makes sense.
- Analyze: We have two people (Leo, Mia) and two pets (bird, fish). The clue says: 'Leo does not own a bird.'
- Plan: We will create a small grid. We will put an X for impossible matches and a checkmark for correct matches.
- Solve: Since Leo does not own a bird, we put an X in the box where Leo and bird meet. This means Leo must own the fish, so we put a checkmark there.
- Solve: Since Leo owns the fish, Mia cannot own the fish. We put an X for Mia and fish. This leaves Mia with the bird, so we put a checkmark there.
- Justify & Evaluate: Our final solution is Leo owns the fish and Mia owns the bird. Let's check the clues. Does Leo own a bird? No, he owns a fish. Is every pet owned by one person? Yes. The solution is reasonable and correct!
