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MA2-15MG Manipulates, identifies and sketches two-dimensional shapes, including special quadrilaterals, and describes their features
MA2-16MG identifies, describes, compares and classifies angles
Lesson One
Lesson One
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Learning content: identifies, describes, compares and classifies angles
Learning content: identifies, describes, compares and classifies angles
An angle is where two lines meet at a point.
Watch this short video to learn about some different kinds of angles.
Angles definition_page_2.pdfActivity
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If you want to find out whether an angle is a right angle, an acute angle or an obtuse angle, you could fold a circle as you saw in the video and make your own right angle checker.
If you can't find, or make one of these, just grab a piece of paper and use the corner of it as a right angle checker, and see if the angles that lines make match the corner of your piece of paper.
See how many objects you can find in your room that have right angles.
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Now have a go at these two worksheets.
Angles worksheet.pdfAngles worksheet 2_page_2.pdfFor fun
For fun
Lesson Two
Lesson Two
For Fun
For Fun
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As a revision of what we were learning yesterday, watch the first part of this video clip - up to 1.59 minutes. Then click through the slide show.
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Complete the following worksheets.
Angles classification_page_1.pdf3_6_2_w2.pdfHere are two fun worksheets to have a go at as well. For the snowflake one, use three different colours for each of the angles and trace over the angles on the worksheet. For the Hidden Angles worksheet, use a different colour to mark each of the different kinds of angles on the shapes - be careful, there are some tricky ones!
Snowing angles_page_1.pdfHidden angles_page_1.pdfActivity
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Using your iPad, spend 10 minutes taking photos from your surroundings (outside if possible), showing acute angles, right angles and obtuse angles in the environment. Take careful photographs to make sure that the angles are easily recognised.
Make sure you have at least three photos of each kind of angle. We will use these photos in Maths tomorrow.
Lesson Three
Lesson Three
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Using the photos you took yesterday you need to make a Keynote page (just one page) with three columns. Give each column a title: acute angle, right angle, obtuse angle. Underneath the title, right a short explanation of how to recognise each angle. Then insert three examples of each type of angle, and draw a thin arrow, pointing to the angle. Then you can upload your keynote page to Seesaw.
Your finished product should look a little like this, although this isn't finished! Make sure that your arrow points exactly to the angle you are showing.
Lesson Four
Lesson Four
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Create a maze using different paths where each path has two acute angles, one right angle and two obtuse angles. You can make your maze by drawing lines on paper with a ruler and different coloured textas or colours, or you can draw your lines using different coloured chalk on the concrete outdoors, or you can use duct tape to make your maze.
Then take a picture of your maze, use arrows to point to your angles, and upload to Seesaw.
Example
Lesson - Parallel and Perpendicular
Lesson - Parallel and Perpendicular
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Learning content:
Learning content:
- uses appropriate terminology to describe mathematical ideas
- checks the accuracy of a statement and explains the reasoning used
- understands the properties of parallel lines
Click through the slides below to learn about parallel and perpendicular lines and then watch the video clips.
parallelperpendicular poster.pdfActivity
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Your teacher will give you some of these worksheets to complete.
Perpendicular & parallel lines_page_1.pdfPerpendicular & parallel lines_page_3.pdfPerpendicular & parallel lines_page_2.pdfidentifying-parallelograms.pdfLesson - Quadrilaterals
Lesson - Quadrilaterals
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Have a look at this image. Use a colour that will show up on the picture, and mark in as many pairs of parallel lines as you can find.
We can use our understanding of parallel lines to help us work out what different 2D shapes are.
All of the 2D shapes below are quadrilaterals, because they all have four straight sides, but they also have their own special names.
Can you name these quadrilaterals, and explain how you know they are that particular type of quadrilateral?
Here is a poster that describes how to recognise different types of quadrilateral.
Now complete this foldable activity showing your understanding of quadrilaterals.
Quadrilaterals foldable.pdfYour teacher will have some challenge cards, games or work stations for you to complete, revising your knowledge of quadrilaterals.
Lesson - Properties of 2D shapes
Lesson - Properties of 2D shapes
Two thinking challenges
Two thinking challenges
If "right angle" is the answer, what is the question?
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Think about how understanding parallel lines and perpendicular lines can help you clearly explain different 2D shapes. Use this information to complete the two worksheets below.
Work through the questions on the sheet above, then have a go at describing the shapes on the sheet to the right.
Describing 2D shapes.docxLesson Seven
Lesson Seven
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Thinking about everything we have learnt this term, see how many different mathematical answers you can come up with for this challenge.
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Part A
2D polygons have the same number of angles as they do sides.
Ewan likes to collect triangle and rectangle shaped stamps. When he counted the number of sides/angles his stamps had, he had 31 sides/angles altogether.
How many triangle and rectangle stamps might he have? Find as many different answers as possible. Record your suggestions in a table as shown below. Then upload to Seesaw.
Triangles Rectangles
1 7
Part B
The teacher has 11 rectangles and 10 trapeziums. She gives 9 rectangles away. How many corners/vertices are left? Prove your answer by showing your working out.
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Click through the slides and work out what each shape is.
Lesson Eight
Lesson Eight
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Learning content: recognises lines of symmetry in shapes
Learning content: recognises lines of symmetry in shapes
Watch this video clip as an introduction to today's topic.
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Have a go at the Butterfly symmetry sheet and the faces sheet. Then design your own butterfly, making sure that it is symmetrical both in shape and pattern. It would be great if you used colour.
ButterflySymmetry.pdf
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Many capital letters are symmetrical. Go through the alphabet carefully and select those letters which are symmetrical.
Write out the capital letters in lead pencil, then use a coloured pencil or texta and draw dotted lines though the shape to show where the lines of symmetry are.
Make a list of capital letters that have only one line of symmetry and a list of those capital letters that have two lines of symmetry.
Lessons Nine & Ten
Lessons Nine & Ten
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Watch another video to revise what we learned yesterday about symmetry.
Think about the following questions, and make sure you can explain them clearly, so that there is no confusion left after your explanation.
How would you describe a rectangle, including ideas about symmetry?
How would you describe a square, including ideas about symmetry?
How would you describe a parallelogram, including ideas about symmetry?
Can a shape be a square but not a rectangle?
Can a shape be a rectangle but not a parallelogram?
Prepare an explanation in your Maths books, or on Keynote.
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Complete the Lines of Symmetry and Symmetry activities. Be careful to take into consideration where the shapes are placed on the grid squares, and remember that you will be drawing your shapes like a reflection in a mirror. And there is one for fun - be careful: see what the cow looks like when you have finished!!!
symmetry3_0.pdfActivity
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Have a look at the slides below, and identify which ones are symmetrical and which ones aren't. Also, note where the lines of symmetry are. Be very observant - some of them might trick you!
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