LI: We are learning to investigate corresponding, alternate & co-interior/exterior angles.
SC: I can identify corresponding, alternate & co-interior/exterior angles.
Today we will be looking at how we can find missing angles on a line, in intersecting lines, and around a point.
Angles in intersecting lines (transversal crossing parallel lines) Introduce using: Maths Online 3299 “Parallel lines”. You are now going to colour your blank page similar to what is shown below. You must identify Corresponding Angles, Co-Interior Angles & Alternate angles.
LI: We are learning to measure angles with a protractor.
SC: I can use a protractor correctly by: -lining up the baseline with one ray of the angle -lining up the centrepoint of the protractor with the vertex of the angle -measuring from 0
Today we will be learning how to use a protractor to measure angles. Before we do that we are going to watch this video to refresh ourselves on what we learnt about angles yesterday. Numberock Angles video
Now we are going to learn how to use a protractor. Go through these instructions. On your mini whiteboards, I would now like you to make the following angles:
50 degrees
90 degrees
125 degrees
210 degrees
330 degrees
Groups & Activities: Group 1: With Mr Blain Firstly, we are going to practise creating different angles on our whiteboard using a protractor. Then You will be working in pairs to solve this angles puzzle
Group 2: Today you are going to create a picture using only straight lines. You can create a picture of your choice, although it must include several angles (try to include as many different types of angles as possible) that you are able to measure. You MUST use a ruler, and you can only use straight lines in your picture. Some ideas include:
Intersecting Lines Picture
A house/castle
A car
Examples of some pictures are shown below.
Reflection: Think pair share: Top tips for measuring angles.
Lesson 1:
Lesson 1 LI: We are learning to understand vocabulary about lines and angles, and identify types of angles.
SC: I can identify and explain line vocabulary and can recognise and define acute, right, obtuse, straight, reflex and revolution angles.