# Measuring Dinosaurs: Engaging Measuring Activity for Kids!

Measuring is one of those early math skills that is incredibly important to learn and practice. It must be precise if you are hanging something on the wall, or building something, or needing dimensions. Recently we were given a Scanorama science book to review, and I used it as a springboard for a fun, **hands on measuring activity** with my kids!

***Please Note**: I received this book free of charge and was compensated for my time in writing this review. All opinions, however, are my own and I was not required to write a positive review. Read our full disclosure here.*

**Measuring Dinosaurs Activity for Kids:**

After receiving the book, I left it out for the kids to discover, look through and read on their own. This piqued their interest and they began asking to read it together. My older two would also share fun facts they learned about certain dinosaurs.

Eventually, we sat down to explore the book together to search for answers to some of their questions. I also showed them the slides and we compared the bones and their sizes.

This book is SO packed with information, it definitely requires more than one read through!

So after we read and compared the different dinosaurs, I pointed out the **various sizes** of some of their favorites.

Did you know that a Tyrannosaurus Rex would be anywhere from 33 to 43 feet long and had the largest teeth of any land dinosaur?

Because this book is **organized so nicely by type of dinosaur**, we were able to compare and contrast the different types by size.

As we considered just how large some of these great animals were, however, it because clear that these numbers are **difficult for young kids to comprehend**.

A Diplodocus is 80-100 feet long? Sounds big, but *just how big is it*?

So rather than *just reading* about the sizes of dinosaurs, we decided to **actually measure them and compare**!

**Materials Needed for Dinosaur Measuring Activity:**

If you would like to measure dinosaurs with your kids, it’s very simple and only requires a few materials:

- Scanorama: Dinosaurs
- Sidewalk chalk
- Measuring tape (or a large piece of string and a ruler)

*A quick note:* we used this beautiful book, but other books about dinosaurs that include measurements would also work! Or, you could do a quick google search or watch some kids friendly videos on YouTube to learn about different types of dinosaurs and their sizes.

Once you’ve gathered the materials, just **decide which dinosaurs to measure**!

**Comparing Dinosaur Sizes:**

We decided to measure the **bone-headed dinosaurs** first.

Each page offers the “top 5” of that particular type of dinosaur. It then gives a brief description of the animal, **including the length**.

Because the length is given **as a range**, we measured the smaller number in the range. I would then explain that this dinosaur was **at least this long**, maybe longer.

You could use the larger value, just be sure to **be consistent**. For instance, don’t measure the smaller value of the range for some dinosaurs, but the upper value for others.

To compare all five bone-headed dinosaurs, we started our measuring tape at **the same place** on our driveway for each dinosaur.

Then, I simply held it while my kids **pulled out the measuring tape to the right length**.

Finally, a child who was not measuring would **draw a line with chalk** to show the length of the dinosaur.

Once we had drawn the length of all five, we were able **to compare** and they answered questions such as, “Which one is the smallest?” “Which one is the longest?”

I also challenged my daughter (second grade) to calculate **how much longer** the dinosaurs were than her. This was a great

**mental math exercise**.

We also saw that two of the dinosaurs were **about the same size**.

**Measuring 100 feet:**

The longest of the bone-headed dinosaurs was approximately 30 feet. When my kids saw how long that is, they marveled at how big the dinosaurs must have been.

At this point, I brought their attention to the **long-necked dinosaurs**.

Some of these dinosaurs were 100 feet long (or longer!). Again, understanding the incredible size of these giants is hard for any of us to imagine, so we decided to **measure out 100 feet**.

This was another great opportunity to **put their math skills to work**. Because not only did they have to measure out 100 feet, they had to figure out *how to get to 100 feet*.

Our measuring tape **only goes to 25 feet**. This gave us the opportunity to talk about money and how many quarters are in a dollar, as well as fractions. 25 is one fourth of 100. So you have to measure 25 **4 times** to get to 100.

This also meant we had to **measure in the road** (our driveway is definitely not 100 feet long). So if you don’t live on a quiet road away from cars like we do, you may need to find somewhere else to do this activity.

My kids took turns **measuring and drawing lines with chalk** until we had a 100 foot chalk line going down our street.

It was so fun to stand at either end and picture **just how big** the Supersaurus would have been!

My kids said, “I bet it was taller than our house,” and “I’m sure it could eat the leaves at the top of that tree!”

It was really a fun way to help them **understand length, measuring and comparing numbers**.

**Other Math Ideas to do with Scanorama: Dinosaurs**

- In addition to measuring, we spent time looking at the table of contents and using it to practice
**skip counting** **Graph the lengths**of all the dinosaurs to compare: This would make a fun activity to work on graphing and analyzing a graph- Find
**the average**lengths: Use the length ranges to practice calculating averages, and measure or graph the average length of all the dinosaurs

What ideas would you add to this list?

**Looking for more fun, hands on measuring activities for kids? Try one of these!**

Want to take your measurement lessons a step further? Explore fractions with rulers! This is a **great visual model** for all kinds of fraction concepts!