This is a Clilstore unit. You can .

**You will learn about the importance of the Pythagorean Theorem in the video above.**

Remember that, to implement the **Pythagorean Theorem**, a triangle has to be a **right-angled triangle**.

The longest side of a right-angled triangle is always opposite to the 90-degree angle (right angle). It is called the **hypotenuse**.

The other **2** adjacent sides are called the** legs** of the triangle.

Pythagorean theorem states that the square of the hypotenuse of a right angled triangle is equal to the sum of the squares of the other 2 sides.

**1-** Whatch the video "Pythagorean theorem explained" (here you have the transcription):

**2-** Now watch the "Pythagorean theorem water demo", a very useful example which illustrate how the theorem works. Then, do the following tasks:

- Activity 1: use the sliders to explore the Pythagorean theorem (work in pairs)

- Activity 2: do the Hot Potatoes Match and check the solution (work individually, then discuss with your partner and finally check the solution)

- Activity 3: listen to the Pythagorean song. Try to identify the key words (at the end of the unit you have the lyrics but first listen without reading them).

- Activity 4: listen again to the Pythagorean Theorem explanation and then fill in the gaps. After that, compare your answers with your partner's and finally check your rights and wrongs (remember you have the transcription above but try to fill the gaps firstly without looking at it)

- Activity 5: solve the problems (write the septs down in your notebook, work in pairs).

- Activity 6: Play to the Pythagorean games (play two-on-two). You can also play alone whenever you want.

- Closure activity: Invent a problem in which you need to use the Pythagorean Theorem to get the solution. Include realistic mesures, units, etc.

**PYTHAGOREAN SONG LYRICS**

*Look at a right triangle**With a 90 degree right angle**Across from the right angle is the hypotenuse**It's no surprise the hypotenuse is the longest side**Now how do you find the hypotenuse's length**If you know the length of the two other sides? **Let's take you back to ol' Ancient Greece**Pythagorus is gonna show you why:**a squared plus b squared equals c squared**Where c is the length of the hypotenuse **a squared plus b squared equals c squared**Where a and b are the length of the other sides**The Pythagorean Theorem**Is a delicate calculation**To find the hypotenuse take the square root**Of the sum of the two other sides' squares...and then compute**How do you find the hypotenuse's length**If you know the length of the two other sides? **Let's take you back to ol' Ancient Greece**Pythagorus is gonna show you why:**a squared plus b squared equals c squared**Where c is the length of the hypotenuse **a squared plus b squared equals c squared**Where a and b are the length of the other sides*

Short url: https://clilstore.eu/cs/4877