Mission Complete! You are amazing! Oops! Try again. Knowledge Uploaded ... Is it ... ? ... Or ... Mystery Solved! You found the fair start and sorted them perfectly! Oops! That's not quite right. Remember, Mouse is shortest, Giraffe is tallest. Let's try again! Plop! On the baseline. Great! Now click them from SHORTEST to TALLEST!
Why is the chair tower "tricky"?
That's right! The chair gives it a head start, so it looks taller even if it isn't.
Can we tell who is taller if they start in different spots?
Correct! We can't tell for sure unless they start at the exact same level.
What is a "smart guess" called?
Exactly! An estimate is when we use our eyes and brain to make a smart guess before measuring.
What is the "Flat Feet" rule?
Correct! The Flat Feet rule means everything must start at the same bottom level to be fair.
What do we call the "start line" for measuring?
Awesome! A Baseline is the flat starting line where we begin measuring.
If we measure a race, where should everyone start?
Spot on! Just like measuring height, a race must start at the same baseline to be fair!
If a tower reaches higher than another, it is...?
Correct! When something goes up higher from the baseline, we call it Taller.
If your arm is bigger than a spoon, the spoon is...?
Exactly! The spoon does not reach as far, so it is Shorter.
Which word do we use for things lying down?
Yes! When measuring side-to-side, we use the word Longer.
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The Mystery of the Crooked Tower: Finding a Fair Start
EvoClass-MATH000 Lesson 4
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🤖 Beep boop! Hello, Math Detectives! Let's solve a measurement mystery today!
Math-Bot Command LIVE
Beep boop! Hello, Math Detectives!
Let's solve a measurement mystery today! Select a clue below.
Mystery Progress 0%
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Oh no! Look at these two towers. One is on a chair and one is on the floor. The chair tower looks taller, but is it really? It’s a Measurement Mystery!
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The Setup
The Tallest Tower Trouble
Why does height trick our eyes?
To solve the mystery, we need 'Flat Feet!' In math, we call this a Baseline. We must move both towers to the same floor to see the truth.
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The Baseline
The Flat Feet Rule
Finding a fair starting line.
Now that we have a fair start, let's name what we see! Is the blue tower taller or shorter? Is your arm longer than a LEGO brick?
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Vocabulary
The Size Search
Using words like Taller and Shorter.
Did you know? The word 'Baseline' means the starting line where everything begins to be measured fairly!
Did you know?
The word Baseline means the starting line where everything begins to be measured fairly!
Interact to explore!
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Mystery Solved!

You are a Master Detective!

Mission: The Fair Start Challenge
Move the animals to the Safety Grass (Baseline), then click them from Shortest to Tallest!
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Safety Grass (Baseline)
Click the animals to move them to the grass!