Introduction to the Protractor GRADE 45 Lesson Study

What can you tell me about this square? 4 cm Some attributes we noticed:

Let’s measure an angle To measure angles, we use a protractor.

Now it’s YOUR turn to practise Practise measuring all of the angles on the

How did you do with the protractor? Problems Solutions

Let’s draw a right angle together Now it’s a right-angle triangle. 6 cm line

Let’s draw another right angle 6 cm line It’s another right-angle triangle.

Let’s draw a shape with MORE than ONE right angle Now we’ve made a

Now it’s YOUR turn again! Try drawing some shapes using a six-centimetre line and

Here is your FULL mission Grade 4 Mission Now that you know how to

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Introduction to the Protractor GRADE 4/5 Lesson Study #2 N. Bekanovic, M. Ferraci, S. Jordan, N. Moore, A. Prosdocimo

What can you tell me about this square? 4 cm Some attributes we noticed:

Let’s measure an angle To measure angles, we use a protractor.

Now it’s YOUR turn to practise Practise measuring all of the angles on the page using your protractor. Remember 1. Line up the corners. 2. Match the zero line. 3. Start at 0.

How did you do with the protractor? Problems Solutions

Let’s draw a right angle together Now it’s a right-angle triangle. 6 cm line

Let’s draw another right angle 6 cm line It’s another right-angle triangle.

Let’s draw a shape with MORE than ONE right angle Now we’ve made a perfect rectangle. 6 cm line How many right angles does this shape have?

Now it’s YOUR turn again! Try drawing some shapes using a six-centimetre line and a protractor. 6 cm

Here is your FULL mission Grade 4 Mission Now that you know how to draw right angles … Grade 5 Mission Now that you know how to draw right angles and you know about different types of triangles … In your math notebook: Draw three different quadrilaterals with each having at least one right angle. Draw two scalene triangles with each having one right-angle. and … Draw two isosceles triangles with each having one right angle.