#### Subject Domains

#### Language

#### Average Learning Time

#### Works Offline

No

#### Description

Oh Yes! With the knowledge of Trigonometry, you can know the correct slope of a roof, the proper height of a building, the rise of a stairway and many much more fun stuff like working on a video game, building different industrial machines and automobiles etc.

**Learning outcomes:**

- Study the unit circle chart
- Draw the unit circle
- Draw a right-angled triangle inside a unit circle
- Measure opposite, adjacent and hypotenuse of a triangle
- Measure the two other angles in the right-angled triangle
- Obtain sine and cosine of various angles
- Identify the relationship between the trigonometric ratios and the measured values
- Estimate the value of trig functions for any given angle without a calculator using the unit circle concept.

The ILS was created in line with the outcomes of the Nigerian Curriculum

## View and write the comments

You search a cheap experiment?

You need

1) a bicycle wheel as unit circle

2) a smartphone attached.to.the.bicycle wheel

3) the free Phyphox app

https://phyphox.org

Use the Acceleration sensor of the smartphone.

You search a cheap experiment?

You need

1) a bicycle wheel as unit circle

2) a smartphone attached to the bicycle wheel

3) the free Phyphox app

https://phyphox.org

Use the Acceleration sensor of the smartphone.