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Protractor use6/19/2023 The third lesson set my learners up for even more angle-measuring practice and gave them some slightly more accessible shapes to measure. My learners moaned but I repeated my instructions until eventually everyone was on task and engaged in making corrections in their workbooks themselves.įollowing that 20-minute recap, I felt the class could move on to the next lesson with greater confidence (as I had previously planned). Read the degrees where the other side crosses the number scaleĪfter reading these instructions to my class, I decided to pop on my handy visualiser and told them we would be re-measuring all polygons from our workbook following the step-by-step instructions on the board.Line up one side of the angle with the zero line of the protractor (where you see the number 0).Place the midpoint of the protractor on the vertex of the angle.Find the baseline of the protractor and line it up with the baseline of the shape or angle.In the next lesson, I wrote down the steps of how to measure the angles on my whiteboard: How to measure angles: a step-by-step guide I realised that to address this, I’d have to break down the steps of measuring angles and slow things down for learners struggling with this aspect of the topic. Children seemed to struggle to understand the difference between the ‘inside’ and ‘outside’ scales of the protractor and confused reflex and obtuse angles. The pace of the second lesson was fast, and it was clear that not all learners were making ‘expected progress’.ĭigging deeper, I could see that the practical skills needed to use a protractor to measure angles were causing confusion in my class. This stood them in good stead for Lesson 1: Knowing Types of Angles.īut my class hit a speedbump in Lesson 2: Measuring Angles which focused on measuring angles within a polygon. My Year 5 maths learners started the angles chapter with good prior knowledge of the names and specifications of angles. Why do learners struggle to measure angles using a protractor? ![]() If you’re tackling the angles lessons in Maths - No Problem! Textbook 5B, Chapter 9, or looking for general tips for teaching angles in Year 5, then keep reading. But they’re trickier than they look and can be hard for your learners to get to grips with. Protractors may seem like innocuous semi-circles with some numbers marked around the outside. Are your Year 5 maths learners battling their protractors in their angles lessons? Here’s a handy guide to help them measure angles with confidence.
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