1. Unit 5
MEASUREMENT

2. Measurement Triangles (Page 201- 213) Polygons (Page 214- 223)
Perimeter (Page )
Area (Page )
Volume (Page )

3. Types of Triangles https://www.youtube.com/watch?v=mLeNaZcy-hE
Scalene: Has no equal sides or angles
Equilateral: All three sides and angles are the same
Isosceles: Has two equal sides and angles (Sometimes shown with a line through to equal sides)
OR/AND
Right Triangle: One of the three angles is a right angle. (90°)
Obtuse Triangle: One of the three angles is obtuse (more than 90°)
Acute Triangle: All three angles are acute (Less than 90°)

4. Naming triangles based on their sides
All equal sides!
No equal sides
Two equal sides

5. Practice

6. Assignment
Page 201, Questions 1,2, 7, 9

7. Naming triangles based on their angles
**Remember all triangles will have two acute angles.
So you are always looking at that third angle to decide whether it’s acute, right, or obtuse.

8. Practice

9. Assignment
Page 207, Questions 2, 3, 4, 5, 8

10. Naming Triangles Example PAT question

11. Triangles (Page )
How to draw a triangle: Step 1: Draw a baseline using one of the measurements given with your ruler. Label it appropriately. (A-B) Step 2: Make a vertex and measure the angle using your protractor. Connect your line Step 3: Repeat steps 1 and 2 when necessary

12. Practice Draw a triangle with a 30° angle and a 105° angle
Draw a triangle with a 60° angle with a 5 cm line segment AB and 6cm line segment BC
Construct a triangle that has one angle that measures 75° and one angle that measures 25° …can you label the triangle? What kind is it?

13. Assignment
Page , Questions 1, 2, 3, 6, 7, 8

14. Polygons (Page 214- 223) https://www.youtube.com/watch?v=UeKN5-ogFTs
Exrtra:
Polygons: Are 2- dimensional shapes, with multiple sides and it’s closed.

15. Polygons (Page )

16. Polygons (Page )

17. Polygons (Page )
Regular Polygon: Has all equal sides and angles. Example: A square, a stop sign.
Irregular Polygon: All sides and angles are NOT equal.
Convex Polygon: All the INTERIOR angles are less than 180°
Concave Polygon: Has at least one INTERIOR angle that is greater than 180°

18. Practice

19. Naming Polygons Example PAT questions

20. Assignment
Textbook Page , Questions: 1-4, 6, 7

21. Polygons (Page 214- 223) Congruent means the same or identical!
Congruent shapes: Two shapes that are exactly the same.
Congruent shapes don’t always have to appear exactly the same, they may be rotated, flipped, or mirrored.
An easy trick is to trace the shape you are looking at and compare to the other shape by placing it over and rotating when necessary.
This symbol means the two shapes being compared at congruent.

22. Practice

23. Assignment
Textbook page , Questions 1-4

24. Perimeter (Page 226-230) https://www.youtube.com/watch?v=6mopAgqjkVM
The distance around a shape. Think the fence around your house. That’s the perimeter of your yard.
To find the perimeter of a polygon you need to add all the sides together.

25. Perimeter (Page )
There is something called formulas in math, there are different formulas for different math concepts. They are important because they help you remember how to solve for the problem.
The formula for perimeter is:
Perimeter= Side + Side +Side + Side… OR
P= S+S+S+S
You might also see it:
Perimeter = Length + Length + Width +Width OR
P= L + L + W +W

26. Perimeter (Page )

27. Practice

28. Perimeter Example PAT question

29. Perimeter Example PAT question

30. Assignment
Textbook page , 3, 5, 6, 7, 9

31. Area (Page 231- 234) https://www.youtube.com/watch?v=Xk-PyhjFWw4
Area is the space inside of the perimeter.
Formula
Area = Length x Width or A = L x W
Your answer will always be squared. What does that mean? 2cm X 3cm = 6 cm2 That little two shows the squared **Always remember to write your answer with the measurement used. CM, M, MM, Inch, Feet**

32. Area (Page )

33. Practice

34. Area Example PAT Question

35. Assignment
Textbook page , questions 1-8
Dream House Assignment

36. Volume (Page 235-238) https://www.youtube.com/watch?v=qJwecTgce6c
Is the space inside of a 3 dimensional shape. Think about a Kleenex box, it’s all the space inside the box.
To find the volume of a rectangle you multiply length x width x height
The formula
Volume= Length x Width x Height or
V= L x W x H
Your answers will always be cubed. What does that look like? 3cm X 2cm X 4cm = 24cm3

37. Volume (Page )

38. Practice

39. Volume Example PAT Question

40. Assignment
Textbook page , questions 1, 2, 3, 5, 6, 7

41. GAMES http://www.funbrain.com/poly/