## Switch to our new maths teaching resources

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## Lessons (12)

In this lesson, we will explore the concept of rationality and irrationality in numbers, and learn how to classify rational and irrational numbers.

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In this lesson, we will learn what a surd is and we will explore how to accurately estimate the value of a surd.

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In this lesson, we will recap how to use Pythagorean theorem to find the length of missing sides in triangles leaving the answers is surd form.

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In this lesson, we will look at basic surd rules in particular multiplication and division.

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In this lesson, we will learn about the the ratio of side lengths in right angle triangles.

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In this lesson, we will look at the special cases of 30 and 60 degrees right angled-triangles.

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In this lesson, we will develop an understanding of trigonometric ratios focusing on sine.

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In this lesson, we will explore trigonometric ratios focusing on sine and cosine.

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In this lesson, we will learn how to find missing sides and angles in triangles using sine and cosine for 30 and 60 degrees.

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In this lesson, we will learn how to find missing sides using sine and cosine for any angle in a triangle.

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In this lesson, we will use inverse sine and cosine to find missing angles in triangles.

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In this lesson, we will look at the graphs made by the sine and cosine functions and compare them to highlight similarities and differences.

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1 Worksheet

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