Today in Maths we were learning about measuring angles. After discussing estimation and how to predict your answer we measured angles but then we had a challenge. We needed to write a set of instructions for how to use a protractor that even a robot, with no brain-power of its own, could follow. We watched an example of a jam-sandwich-making robot with disastrous consequences when it was given the wrong instructions to prepare ourselves!

Here are the instructions we came up with:

First pick up the protractor and place it on the angles arms the tip of the bottom arm should be on the outside or inside 0 .Now read the outside or inside angle. Write the number (wether u are doing the outside or inside 0)onto the piece of paper and put the protractor u are finished so u may walk away .

Neha:

Pick up your protractor.

Line up the middle line (that follow up to 90 degrees) to match the very corner of the angle.

Follow the line on the line that is going horizontally to decide wether to use the inside or the outside of the protractor. This where the zero is.

Now find where the line that is going vertical on your angle is at what number.

And once you find the number that is the degrees that your angle is.

How to measure angles

Firstly pick up the protractor

Next line up the protractor with the angle

Then if the bottom line is facing right use the inner numbers to measure the angle if the angle is facing left you read the measurements off of the outer numbers

1.pickup a protractor with your right hand.

2.then place your protractor onto your angle.

3.make sure 0degrees is going along the straight line.(horizontal)

4.next look at the number where the line is rising

5.if your zero starts on the outside you read the number the Line is pointing at but the outside one

6.after you’ve read the number that is the degrees of the angle.

Shannon:

First of all draw your angle

Then put the curved line on the corner of your angle

Tip……. Make sure you have the protractor the right way up

Make sure the zero is in line with one of the lines of your angle

Look up the protractor and see where the other line is

Which ever number it is on os the degree of your angle

1) Pick up your protractor.

2) Put it down on the angle so the protractor’s point is on the angle’s vortex.

3) Make sure the line of the protractor is inline with the arm of the angle.

4) To measure the angle find the angle with the curved line connecting the two arms and look where the second arm is pointing.

Margot:

1. pick up your protractor with your right hand.

2.Place your protractor on the given angle making sure the small semicircle in the middle of the protractor is on the end of the angle so that the line in your semicircle is on the tip of the angle.

3. Make sure the line on the protractor is straight against the line of the angle.

4. Now look at the numbers on your protractor their should be two sets depending on which way your measuring. Then look at the line of the angle which goes up and find the number which is on top of it

5. That is your angle

Shrey:

1) Pick up your protractor.

2) Put it down on the angle so the protractor’s point is on the angle’s vortex.

3) Make sure the line of the protractor is inline with the arm of the angle.

4) To measure the angle find the angle with the curved line connecting the two arms and look where the second arm is pointing.

Hannah R:

First you must have a protractor.

If the angle is bigger than your protractor then measure the gap and take it away from 360.

If it isn’t bigger than your protractor then place the protractor down with the middle of the angle on the middle of your protractor.

The inside is what mainly measures the degree of the angle. The outer degree is for exact measurements.

Line up one line with the inside 0 on the protractor carefully follow the other line up with your finger to the inside line.

If you want the exact measurement then go up to the outer rim and use the smaller lines to get the exact measure.

Nitheesh:

Pick up the protractor with both hands.

Place the end point of the line (which is cutting through the semi circle) on the vertex (point of the angle)

Look where your angles line is. The 0 angle should be and a straight side. Then you can measure.

On the right side, use the outside for obtuse and the inside for acute angles. On the left side, the outside is for acute and the inside is for obtuse.

Isobel:

1.)Put the protractor on the angle with the 90 degree line going up the middle in the corner of the angle ( where the adjacent line meets it). The 180 degree line along the bottom of the protractor should be aligned with the bottom line on the angle.

2.) to find an acute, obtuse or right angle look for the line pointing upwards. The number that the line is resting beneath is the amount of degrees that it is.

3.)To find the degrees of a reflex angle ( you know it’s a reflex angle if it’s got a circle around the corner of the angle- a full reflex angle is 360 degrees like a circle) find the degrees of a normal angle like you’re measuring an acute, obtuse or right angle then subtract that from 360 degrees.

Max:

First pick up the protractor

Then place it in the centre of the angle

Follow inside line

Draw a dot on the protractor where the line stops

Pick up the protractor

From the dot draw a straight line to the outside of the protractor

Look at the line it is on

That is your angle

Saajan:

Firstly pick up the protractor

Next line up the protractor with the angle

Then if the bottom line is facing right use the inner numbers to measure the angle if the angle is facing left you read the measurements off of the outer numbers

Vrinda:

1. Draw a right angle using a pencil depending on which hand you use.

2. Pick up the protractor.

3. Look at the straight Side of the protractor.

4. Just above the straight side there is a little semi- circle in the middle with the line going through it.

5. Use the semi circle to measure the. Angle and put the lines along the angle .

6. The numbers at the end will tell you how much the angle measures.

Amaan:

1.pickup a protractor with your right hand.

2.then place your protractor onto your angle.

3.make sure 0degrees is going along the straight line.(horizontal)

4.next look at the number where the line is rising

5.if your zero starts on the outside you read the number the Line is pointing at but the outside one

6.after you’ve read the number that is the degrees of the angle.

Bethany:

1.Pick up your protractor.

2.line up your protractor on the bottom line of the angle with the zero line.

3.make shore the corner of the angel is under the corner of the line inside the protractor.

4.look at the other line (that is not under the zero) and see where it is pointing and you have got your answer. 😀

Prakriti:

How to use a protractor?

First of all you draw a random shape and put a small l that is upside down near the shape you have connected.

Then you pick the protractor with your right hand then you place it down on the shape you have drawn on the little upside down l ( make sure it is in line with the l).

Next, you find the degree and that is the angle of your degree.

Evan:

Draw a straight line using your pen and a ruler.

Now draw a line connecting the corner of the straight to where ever you want

Now Get your protractor and place the middle of the protractor in the corner

Where your angle connects.

Now see if angle goes left or right.

If you measured it with your straight line going left then use the inside of protractor.

But if you measured it with your straight line going right then use the outside of the protractor.

Then measure where your angle goes to.

Then draw a circle where the angle is in the corner.

Write the degrees in circle.

Jack B:

First you pick up the protractor.

Then place the protractor on the angle where the two lines in the semi circle on the vertex of the angle.

Measure the angle by the arms and see what number it is pointing to.

Measure buy the line that isn’t on the zero (if it is it’s a revolution)

Write your measurements near the angle on the paper (or whiteboard) and and put a little circle at the top right hand corner to show degrees.

Harry:

1. Pick up protractor with right hand.

2. Place protractor on angle.

3. Make sure 0 degrees is going along a straight line on the angle.

4. Read out what number the other line is pointing to on the protractor.

5. If the circle around the vertex on the angle is more than a quarter full use the bigger number on the protractor.

James:

First get your angle

Next put your protractor at the start of your angle

Hannah D:

1. Pick up your protractor with your right hand

2. Place your protractor on your given angle making sure half the semi circle in the middle of the protractor is aline with the line on your angle. Try to keep your protractor straight.

3. Look for the other side of your angle. Look at the numbers on your protractor and try to find how big/small the angle this. You do this by looking for the other line of the angle and finding the number it is positioned on.

4 Tah Daaaaaah !!!!! You should have your angle.

Elsa:

1. Find the angle you are going to measure

2.pick up your protractor with any hand.

3.lower the protractor to he paper

4.looking at the shape of the angle try work out what type of angle it is because there are two setts of numbers on each section

5.find the mini semi circle on the bottom of the protractor and make sure you line it up with the corner of the angle and make sure the line is to.

6.find the place where the line on the protractor and the line of the angle meet

7.measure the number.

8. Your FINALLY finished!!!!:)

Davleen:

1. Use your left hand to pick up the protractor

2. Put the protractor on the angle and make sure it matches up

3. Measure the angle

Morgan:

1.First you need to pickup the protractor and use both of your hands to place the protractor onto the table.

2.Then you need to place the bottom part of your protractor onto the angle you are measuring.

3.Now you need to make sure that the bottom of your protractor is carefully lined up with the two lines on the angle.

4.After you have lined your protractor up with the two lines on the angle you can then read the numbers it says on the protractor.

5.When you line up the lines on the protractor with the lines on the angle you can then see what the degree of your angle is.

Anikesh:

1.First take the protractor with preferred hand and lift the protractor off the table at less than 10cm and more than 2cm

2.Place the protractor on the corner of the selected angle and Aline with one of the lines of the same angle

3.Then follow on that side to the number zero

4.Then look at the numbers beside zero and continue looking at the numbers in that direction.

5.Then look at the number that Alines with the other line and the number above is how much degrees it is.

6.If there is a circle around the angle use the degrees you found out in step five and take it away from 360 degrees and that will be your degrees.If the circle is inside the angle the degrees in step 5 is your answer.

Giovanni:

1) Put the protractor on the angle corner.

2) Look at where the top line is on the angle.

3) If the top line is on a number e.g 90 it would be a 90* angle (Right Angle). If it was on a different degree e.g 360 it would be a 360* angle (Reflex Angle).

First pick up the protractor from the

Then you must place the protractor on the angle so that the bottom (the flat end that has 0 and 180 on both sides) where the vertical line is covering the joint of the fraction.

Next you must see where the line from the angle joint sticks up and what number it is covered by (the other line should be horizontal to the protractor)

Alex:

1. Get a protractor.

2. Place the protractor on the angle you want to measure.

3. Remember to place the protractor where the circle is.

4. Look at where the top arrow of your angle is and measure it.

5. Then you have your answer. 😉

Firstly get an angle to measure .

Secondly pick up your protractor and look at which side your angle points at.

Then if it points right use the inside number sit it points left use the outside numbers.Next put your protractor on the bottom line.

Very good, some very nice description.