**CONNECT**

Mathematics is like a big puzzle that helps us understand the world around us. It is used to count things, measure distances, calculate time, and much more! Let’s take a look at some of the cool things math allows us to do.

Imagine you have five soccer balls. When you count them, you are using math! This is called “addition”. If you want to share these balls with your friends, you are using “division”. And if you want to know how many balls each friend will get, that is also “division”!

Math also helps us discover things about shapes and sizes. For example, you can measure the length of a table or the area of a rug using numbers. This is called “geometry”.

And we can’t forget numbers! They are like building blocks for math. We can count things with them, like how many toys we have or how many apples are in a basket. They also help us do things like add, subtract, multiply, and divide.

Check out the video “What is Mathematics?”:

**CONTEMPLATE**

• What is “addition” and in what situation would you use it?

• What are numbers?

• What are some of the mathematical operations you know?

**ACTIVITY PROPOSAL**

**DRAGSTER**

A “dragster” is a type of racing vehicle specifically designed for drag racing competitions. These competitions involve straight-line races over a relatively short track, usually a quarter or an eighth of a mile (approximately 402 or 201 meters, respectively).

Dragsters are characterized by their lightweight construction, long and narrow chassis, and highly powerful engines, designed to generate an enormous amount of power over a short distance. They are often modified and tuned to maximize acceleration and speed, aiming to reach the finish line as quickly as possible.

These vehicles are built to achieve high speeds in a short period, and are often used in both professional and amateur drag racing competitions. Dragsters can be categorized into various classes, depending on factors such as engine type, vehicle configuration, and engine size.

**CONSTRUCT**

Build a dragster with pieces from the LEGO® EDUCATION WeDo 2.0 Technology Kit.

**Click the button to download the file.**

Watch the video to see how the dragster works:

**ASSEMBLY PROGRAMMING**

Make the dragster work as shown in the video.

1. Create the programming as shown below:

2. Explain to the rest of the class how the dragster worked.

**CONTINUE**

**Answer the questions and share the answers with your classmates.**

Which sensor was used in the assembly and what is its function?

What type of gear is being used in the construction?

**After the construction, store all the materials used.**