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Critical thinking worksheet where students use clues to determine the ages of four children, Emily, Anthony, Sarah, and Winston, ranging from 8 to 11 years old.

Critical thinking worksheet titled "How Old Am I?" featuring a grid with names (Emily, Anthony, Sarah, Winston) and ages (8, 9, 10, 11) to solve a logic puzzle based on given clues.

Critical thinking worksheet titled "How Old Am I?" featuring a grid with names (Emily, Anthony, Sarah, Winston) and ages (8, 9, 10, 11) to solve a logic puzzle based on given clues.

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Show Answer Key & Explanations Step-by-step solution for: 18 Brain Teasers Worksheets | Critical thinking activities ...
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To solve the problem, we need to use the clues provided and deduce the ages of Emily, Anthony, Sarah, and Winston. Let's break it down step by step.

Clues Recap:


1. Sarah’s age is an odd number.
2. Emily is younger than Sarah.
3. Anthony is the oldest child.

Step-by-Step Solution:



#### Step 1: Identify possible ages for each person
The ages range from 8 to 11 years old. The odd numbers in this range are 9 and 11. The even numbers are 8 and 10.

#### Step 2: Use Clue 1 (Sarah’s age is an odd number)
- Sarah’s age must be either 9 or 11.

#### Step 3: Use Clue 3 (Anthony is the oldest child)
- Since Anthony is the oldest, his age must be 11.
- Therefore, Sarah cannot be 11 (since she is not the oldest). So, Sarah’s age must be 9.

#### Step 4: Use Clue 2 (Emily is younger than Sarah)
- Sarah’s age is 9.
- Emily must be younger than 9, so her age can only be 8.

#### Step 5: Determine Winston’s age
- The remaining age is 10.
- Since Winston is the only one left, his age must be 10.

Final Assignments:


- Emily: 8 years old
- Anthony: 11 years old
- Sarah: 9 years old
- Winston: 10 years old

Verification:


1. Sarah’s age is 9, which is an odd number. (Clue 1 satisfied)
2. Emily is 8, which is younger than Sarah (9). (Clue 2 satisfied)
3. Anthony is 11, which is the oldest. (Clue 3 satisfied)

Final Answer:


\[
\boxed{
\begin{array}{c|cccc}
& 8 & 9 & 10 & 11 \\
\hline
Emily & \checkmark & & & \\
Anthony & & & & \checkmark \\
Sarah & & \checkmark & & \\
Winston & & & \checkmark & \\
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of free critical thinking worksheet.
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