#### Trigonometric Identity - Product to Sum 2/2

<b>Product to Sum Trigonometric Identity Involving (sin(a)*cos(b) and cos(a)*sin(b))</b><p>Video Tutorial: Writing a product of sine and cosine as a sum or difference.</p>

**Product to Sum Trigonometric Identity Involving (sin(a)*sin(b) and cos(a)*cos(b))**

Video Tutorial: Writing a product of two sine functions and the product of two cosine functions as a sum or difference.

**Categories**

<b>Product to Sum Trigonometric Identity Involving (sin(a)*cos(b) and cos(a)*sin(b))</b><p>Video Tutorial: Writing a product of sine and cosine as a sum or difference.</p>

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**FREE**

This video explains how to write a sum and a difference involving cosine as a product.

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**FREE**

This video explains how to write a sum and a difference involving sine as a product.

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**FREE**

<b>Sum to Product Trigonometric Identity Involving Cosine</b><p>
Video Tutorial: How to write a sum and a difference involving cosine as a product.</p>

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**FREE**

This video explains how to compare the mean and standard deviation of two groups of data.

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**FREE**

This lesson explains how to find the probability to two independent events.

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**FREE**

This lesson explains how to add Mayan numbers.

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**FREE**

by ag468<br />
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1 review<br />
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Attached are the game board, cut-out footballs, game card template and instructions. Students answer questions from the game cards (that you can tailor for any topic) and move the ball through the grid on the board, aiming to eventually score goals. Wrong answers lead to 'tackles' where the opponent gets to move instead. This has proved to be good fun for various Maths topics so far.<br />
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PLEASE NOTE: My focus and passion as a teacher is in creating fun an enriching games to use in Maths and other subjects. Do have a look at my other resources - there may be variations on this one and other exciting ideas...

By ag468

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**$2.96**

Review your own lessons by asking for feedback from your students! Lead by example and foster an atmosphere of self assessment for improvement!<br />
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This is a Word document and so can be edited.<br />

By Arty Teacher

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**$2.96**

A mixture of missing angle and side length questions for higher students (Pythagoras, Trigonometry, Sine and Cosine Rules). A flow chart is included to help students to decide how to determine the unknowns.<br />
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Print on coloured paper and laminate for repeated use. To easily differentiate, ask students to sort triangles into groups according the formula needed & work from left to right on the flow chart. <br />
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Questions collected from a variety of on-line sources.<br />
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Don't forget to check my other resources for more topics!

By beckyhat776

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**$2.96**

This PowerPoint contains a whole lesson introducing the topic of matrices, specifically what matrices are, order of matrices and how to put data in matrix form. Then starting to look at some basics, such as how to add and subtract matrices. It also looks at how a scalar is used, and goes through examples of questions like 3a + b.<br />
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The PPT contains a starter, various examples, lesson objectives, key words, questions, answers and plenary. I have found this resource to help me structure the lesson effectively, keep the flow and successful in helping pupils progress and get a good foundation for future lessons on matrices.

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**$2.96**