# Deduction

### Term 2 starting in week 7 :: Estimated time: 2 weeks

• Angles in parallel lines (review)
• Solving angles problems (using chains of reasoning)
• Angles problems with algebra
• Conjectures with angles
• Conjectures with shapes

For higher-attaining pupils:

• Link constructions and geometrical reasoning

This page should remember your ticks from one visit to the next for a period of time. It does this by using Local Storage so the information is saved only on the computer you are working on right now.

## Lesson Starters

Here are some suggestions for whole-class, projectable resources which can be used at the beginnings of each lesson in this block.

### 1st Lesson

#### How Many Rectangles?

How many rectangles can you find in this pattern? Can you come up with a systematic method for counting them all?

### 2nd Lesson

#### Missing Square Puzzle

The missing square puzzle is an optical illusion used to help students reason about geometrical figures.

### 3rd Lesson

#### Anagrams

Can you un-jumble these mathematical words?

### 4th Lesson

#### Bizarre Triangle

By how much would the area of this triangle increase if its base was enlarged to 8cm?

### 6th Lesson

#### Refreshing Revision

It is called Refreshing Revision because every time you refresh the page you get different revision questions.

Some of the Starters above are to reinforce concepts learnt, others are to introduce new ideas while others are on unrelated topics designed for retrieval practice or and opportunity to develop problem-solving skills.

White Rose Resources
 End of block assessments provide a quick progress check at the end of each block of learning to make sure students have understood the content covered. This Scheme of Learning was produced by White Rose Maths and is used here with permission granted on 30th June 2021.

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