#### Comparing Angles and Sides in Triangles

In this resource from CK-12 we look at comparing angles and sides in triangles.

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In this resource from CK-12 we look at comparing angles and sides in triangles.

In this activity students have to solve angle problems and specify each angle fact that they used in a grid. They then compare their methods to those used by their partner - the idea is to generate class discussion about alternative methods.

Bundle Sale

Year 4
Stage 2
Mathematics
Measurement, Geometry, Angles
A variety of learning activities
4 Mathematics Australian & New South Wales Curriculum
Syllabus content focus: MA2 16MG identifies, describes, compares and classifies angles
Editable Word version. Purchase separately or as part of a bundle from Mathematics Program

Included: Presentation / Worksheets / Answers / Activity / Mastery & Extension Cards / Display & Resource Cards
The packs provide a concrete, pictorial,abstract (CPA) approach helps pupils to develop a deep understanding of maths as part of mastery learning all designed for the 2014 curriculum that can be differentiated as detailed below:
PowerPoint presentation:
Included is a PowerPoint (32 slides) which can be used to teach the objective. It includes explanations using mathematical terminology, examples, activities and tasks for the whole class to get involved. There are notes included in the PowerPoint that provide guidance and ideas for teachers to provide greater depth and mastery in Maths.
Worksheets (along with an answer pack):
• Worksheet 1 – Angle type classification – Fill in the grid
• Worksheets 2+3 – Angle type classification
• Worksheet 4 – Angle type test style questions (including ordering)
• Worksheet 5 – Cut and stick angles to correct angle type (acute, obtuse, right angle)
• Worksheet 6 – Cut and stick angles to correct angle type (straight line, reflex, full turn)
• Worksheet 7 – Paired activity -Cut and stick angles to correct angle type (acute, obtuse, right angle)
• Worksheet 8 – Paired activity - Cut and stick angles to correct angle type (straight line, reflex, full turn)
• Worksheet 9 - Cut and stick polygons to correct angle type
• Worksheet 10 – Draw the angle type given
• Worksheet 11 – Classify and draw angles in an array
• Worksheet 12 – Count the angle types in a polygon
• Worksheets 13+14 – Colour the angle types in shapes
• Worksheet 15 – Estimate the angle (multiple choice)
• Worksheets 16+17 - Estimate the angles
Activity
• Spinning angles
Mastery + Extension Cards:
• Partner activities
• True or False activities with reasoning
• Sorting activities
• Work it out problem solving activities
• Spot the mistake with reasoning activities
Concrete Resources - Resource Cards:
• 0-9 digit cards
• Angle type terminology cards
PDF format (please set print option to fit).
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Primary Stars Education

This is a complete lesson on ‘Comparing Pie Charts’ that is suitable for GCSE Higher & Foundation and KS3 students. The lesson is designed for the new GCSE specification.
The pack contains a full lesson plan, along with accompanying resources, including a student worksheet and suggested support and extension activities.

An activity where pupils estimate angle sizes, measure the angles, compare the difference and then draw angles.

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Missing Angles: This cootie catcher is a great way for students to have fun while they practice geometry through angles. How to Play and Assembly Instructions are included.
Students must calculate the value of an angle given the different types of angles: Complementary, Adjacent, Vertical, or Linear.
Answers are provided for each problem.
*** Enjoy this Lesson? Do a search for my other Cootie Catchers: ***
♦ Grades 1-3:
Addition
Arrays
Balancing Equations
Coins
Estimating Sums
Expanded Form
Fact Families
Greater Than Less Than
Long Division
Missing Addends
Multiplication Word Problems
Number Bonds Word Problems
Skip Counting
Subtraction
Telling Time
♦ Grades 3-5:
Balancing Equations
Capacity
Comparing Decimals
Decimals
Elapsed Time
Expanded Form
Exponents
Fact Families
Factors & Multiples
Fractions
Fractions on a Number Line
Greater Than Less Than
Greatest Common Factors
Least Common Multiple
Long Division
Mean, Median, Mode, & Range
Metric Measurement
Mixed Numbers
Multiplication
Number Patterns
Order of Operations
Percents
Place Value
Prime & Composite Numbers
Prime Factorization
Probability
Properties of Mult.
Rounding
Word Problems
♦ Grades 6-8:
Customary Measurements
Fractions: Add & Sub, Decimals, & Percents
Fractions: Equivalent & Reducing Fractions
Greater Than Less Than
Improper Fractions & Mixed Numbers
Integers
Operations with Fractions
Rational Numbers
Ratios
Simple Interest
♦ Geometry:
3D Shapes
Angle Pair Relationships
Area of a Circle & Composite Figures
Circumference of a Circle
Missing Angles
Perimeter
Polygons
Pythagorean Theorem
Quadrilaterals
Surface Area of Rectangular Prisms
Volume & Surface Area of Cylinders
Volume of Cones, Rectangular Prisms, & Triangular Prisms
♦ Algebra:
Absolute Value
Combining Like Terms
Distributive Property
Equations
Evaluating Expressions
Inequalities
Linear Equations
Polynomials
Proportions
Quadratic Equations
Scientific Notation
Simplifying Expressions
Slope
System of Equations
Two Step & Multi Step Equations
Writing Expressions

Sometimes ‘angles of elevation and depression’ are presented to students as a ‘new’ part of Trigonometry after they have mastered solving right-angled triangles and students that had developed confidence lose it when faced with long descriptions of boats, kites and cliffs. This loss of confidence might be avoided if the terms ‘angle of elevation’ and ‘angle of depression’ are introduced as nothing more than clarification of where objects are compared to one another. The following activity aims at introducing the terminology without affecting tentative confidence with recent trig learning.
Activity: Practical situations and trigonometric diagrams.
•Students work in groups of four.
•Requires:
◦An environment where students can be safely situated at different heights, eg: staircase, sloping landscape, playground equipment, upper floor windows.
◦One clipboard per group.
◦One measuring tape or trundle wheel per group.
◦Students willing to work with estimated angles
•Objective - calculate a distance that would be difficult to measure by gathering sufficient information for one of the trig ratios.
◦Two group members (objects) position themselves at different heights. The other members (surveyors) sketch the situation, estimate angles and measure one accessible distance.
◦Instruction to ‘objects’ once in position - first both look and point straight ahead with left arm, then without moving the rest of their bodies, look and point right arm at the other ‘object’. ‘Surveyors’ sketch the situation, estimate the angle made by each ‘objects’ arms, and take one accessible measurement.
Diagrams from in the field are redrawn in the classroom and used for calculating unmeasured distances.
Subsequent discussion:
- limitations on accuracy and how these might be reduced
- How can we describe the angles that were estimated in a way that someone reading our description would know exactly where those angles were?

A spreadsheet that allows you to select the trigonometric function that you need (cell F1), and then a graph is automatically generated to show you the value of theta compared to the trig approximation, also calculating % error

Sale

Year 4
Stage 2
Mathematics
Geometry
Angles
Identify, Measure, Classify angles
4 Mathematics Australian & New South Wales Curriculum
Syllabus content focus
MA2 16MG identifies, describes, compares and classifies angles
Editable Word version. Purchase separately or as part of a bundle from Mathematics Program

Sale

Year 4
Stage 2
Mathematics
Geometry
Angles: Identifying & Measuring Angles
A variety of learning activities
4 Mathematics Australian & New South Wales Curriculum
Syllabus content focus:
MA2 16MG identifies, describes, compares and classifies angles
Editable Word version. Purchase separately or as part of a bundle from Mathematics Program

Sale

A variety of learning activities / A single worksheet / Suitable for assessment, test, quiz
Year 4
Mathematics: Reading, Drawing and Interpreting Angles
Year 4 Mathematics Australian & New South Wales Curriculum
› Syllabus content focus
› MA2 1WM uses appropriate terminology to describe, and symbols to represent, mathematical ideas
› MA2 2WM selects and uses appropriate mental or written strategies, or technology, to solve problems
› MA2 3WM checks the accuracy of a statement and explains the reasoning used
MA2 16MG identifies, describes, compares and classifies angles
Editable Word version. Purchase separately or as part of a bundle from Math Program

Bundle Sale

A variety of learning activities / A single worksheet / Suitable for assessment, test, quiz
Year 4
Mathematics: Reading, Drawing and Interpreting Angles
Year 4 Mathematics Australian & New South Wales Curriculum
› Syllabus content focus
› MA2 1WM uses appropriate terminology to describe, and symbols to represent, mathematical ideas
› MA2 2WM selects and uses appropriate mental or written strategies, or technology, to solve problems
› MA2 3WM checks the accuracy of a statement and explains the reasoning used
MA2 16MG identifies, describes, compares and classifies angles
Editable Word version. Purchase separately or as part of a bundle from Math Program

Sale

A variety of learning activities / A single worksheet / Suitable for assessment, test, quiz
Year 4
Mathematics: Reading, Drawing and Interpreting Angles
Year 4 Mathematics Australian & New South Wales Curriculum
› Syllabus content focus
› MA2 1WM uses appropriate terminology to describe, and symbols to represent, mathematical ideas
› MA2 2WM selects and uses appropriate mental or written strategies, or technology, to solve problems
› MA2 3WM checks the accuracy of a statement and explains the reasoning used
MA2 16MG identifies, describes, compares and classifies angles
Editable Word version. Purchase separately or as part of a bundle from Math Program

Comparing Decimals: These task cards are a great way for students to have fun while they practice their skills with comparing decimals. An answer key is provided.
Do a search for my other Math Task Cards:
♦ Ages 6-9:
Addition
Arrays
Balancing Equations
Coins
Estimating Sums
Expanded Form
Fact Families
Greater Than Less Than
Long Division
Missing Addends
Multiplication Word Problems
Number Bonds Word Problems
Skip Counting
Subtraction
Telling Time
♦ Ages 9-11:
Balancing Equations
Capacity
Comparing Decimals
Decimals
Elapsed Time
Expanded Form
Exponents
Fact Families
Factors & Multiples
Fractions
Fractions on a Number Line
Greater Than Less Than
Greatest Common Factors
Least Common Multiple
Long Division
Mean, Median, Mode, & Range
Metric Measurement
Mixed Numbers
Multiplication
Number Patterns
Order of Operations
Percents
Place Value
Prime & Composite Numbers
Prime Factorization
Probability
Properties of Mult.
Rounding
Word Problems
♦ Ages 11-14:
Customary Measurements
Fractions: Add & Sub, Decimals, & Percents
Fractions: Equivalent & Reducing Fractions
Greater Than Less Than
Improper Fractions & Mixed Numbers
Integers
Operations with Fractions
Rational Numbers
Ratios
Simple Interest
♦ Geometry:
3D Shapes
Angle Pair Relationships
Area of a Circle & Composite Figures
Circumference of a Circle
Missing Angles
Perimeter
Polygons
Pythagorean Theorem
Quadrilaterals
Surface Area of Rectangular Prisms
Volume & Surface Area of Cylinders
Volume of Cones, Rectangular Prisms, & Triangular Prisms

Comparing Decimals: These comparing decimals cootie catchers are a great way for students to have fun while they practice their skills with comparing decimals. How to Play and Assembly Instructions are included.
There are 2 cootie catchers in this product, each one having 8 problems for a total of 16 problems. Answers are provided for each problem.
*** Enjoy this Lesson? Do a search for my other Cootie Catchers: ***
♦ Grades 1-3:
Addition
Arrays
Balancing Equations
Coins
Estimating Sums
Expanded Form
Fact Families
Greater Than Less Than
Long Division
Missing Addends
Multiplication Word Problems
Number Bonds Word Problems
Skip Counting
Subtraction
Telling Time
♦ Grades 3-5:
Balancing Equations
Capacity
Comparing Decimals
Decimals
Elapsed Time
Expanded Form
Exponents
Fact Families
Factors & Multiples
Fractions
Fractions on a Number Line
Greater Than Less Than
Greatest Common Factors
Least Common Multiple
Long Division
Mean, Median, Mode, & Range
Metric Measurement
Mixed Numbers
Multiplication
Number Patterns
Order of Operations
Percents
Place Value
Prime & Composite Numbers
Prime Factorization
Probability
Properties of Mult.
Rounding
Word Problems
♦ Grades 6-8:
Customary Measurements
Fractions: Add & Sub, Decimals, & Percents
Fractions: Equivalent & Reducing Fractions
Greater Than Less Than
Improper Fractions & Mixed Numbers
Integers
Operations with Fractions
Rational Numbers
Ratios
Simple Interest
♦ Geometry:
3D Shapes
Angle Pair Relationships
Area of a Circle & Composite Figures
Circumference of a Circle
Missing Angles
Perimeter
Polygons
Pythagorean Theorem
Quadrilaterals
Surface Area of Rectangular Prisms
Volume & Surface Area of Cylinders
Volume of Cones, Rectangular Prisms, & Triangular Prisms
♦ Algebra:
Absolute Value
Combining Like Terms
Distributive Property
Equations
Evaluating Expressions
Inequalities
Linear Equations
Polynomials
Proportions
Quadratic Equations
Scientific Notation
Simplifying Expressions
Slope
System of Equations
Two Step & Multi Step Equations
Writing Expressions

Comparing Fractions: These comparing Fractions cootie catchers are a great way for students to have fun while they practice their skills with comparing fractions. How to Play and Assembly Instructions are included.
There are 2 cootie catchers in this product, each one having 8 problems for a total of 16 problems. Answers are provided for each problem.
*** Enjoy this Lesson? Do a search for my other Cootie Catchers: ***
♦ Grades 1-3:
Addition
Arrays
Balancing Equations
Coins
Estimating Sums
Expanded Form
Fact Families
Greater Than Less Than
Long Division
Missing Addends
Multiplication Word Problems
Number Bonds Word Problems
Skip Counting
Subtraction
Telling Time
♦ Grades 3-5:
Balancing Equations
Capacity
Comparing Decimals
Decimals
Elapsed Time
Expanded Form
Exponents
Fact Families
Factors & Multiples
Fractions
Fractions on a Number Line
Greater Than Less Than
Greatest Common Factors
Least Common Multiple
Long Division
Mean, Median, Mode, & Range
Metric Measurement
Mixed Numbers
Multiplication
Number Patterns
Order of Operations
Percents
Place Value
Prime & Composite Numbers
Prime Factorization
Probability
Properties of Mult.
Rounding
Word Problems
♦ Grades 6-8:
Customary Measurements
Fractions: Add & Sub, Decimals, & Percents
Fractions: Equivalent & Reducing Fractions
Greater Than Less Than
Improper Fractions & Mixed Numbers
Integers
Operations with Fractions
Rational Numbers
Ratios
Simple Interest
♦ Geometry:
3D Shapes
Angle Pair Relationships
Area of a Circle & Composite Figures
Circumference of a Circle
Missing Angles
Perimeter
Polygons
Pythagorean Theorem
Quadrilaterals
Surface Area of Rectangular Prisms
Volume & Surface Area of Cylinders
Volume of Cones, Rectangular Prisms, & Triangular Prisms
♦ Algebra:
Absolute Value
Combining Like Terms
Distributive Property
Equations
Evaluating Expressions
Inequalities
Linear Equations
Polynomials
Proportions
Quadratic Equations
Scientific Notation
Simplifying Expressions
Slope
System of Equations
Two Step & Multi Step Equations
Writing Expressions

Comparing Fractions: These task cards are a great way for students to have fun while they practice their skills with comparing fractions. An answer key is provided.
Do a search for my other Math Task Cards:
♦ Ages 6-9:
Addition
Arrays
Balancing Equations
Coins
Estimating Sums
Expanded Form
Fact Families
Greater Than Less Than
Long Division
Missing Addends
Multiplication Word Problems
Number Bonds Word Problems
Skip Counting
Subtraction
Telling Time
♦ Ages 9-11:
Balancing Equations
Capacity
Comparing Decimals
Decimals
Elapsed Time
Expanded Form
Exponents
Fact Families
Factors & Multiples
Fractions
Fractions on a Number Line
Greater Than Less Than
Greatest Common Factors
Least Common Multiple
Long Division
Mean, Median, Mode, & Range
Metric Measurement
Mixed Numbers
Multiplication
Number Patterns
Order of Operations
Percents
Place Value
Prime & Composite Numbers
Prime Factorization
Probability
Properties of Mult.
Rounding
Word Problems
♦ Ages 11-14:
Customary Measurements
Fractions: Add & Sub, Decimals, & Percents
Fractions: Equivalent & Reducing Fractions
Greater Than Less Than
Improper Fractions & Mixed Numbers
Integers
Operations with Fractions
Rational Numbers
Ratios
Simple Interest
♦ Geometry:
3D Shapes
Angle Pair Relationships
Area of a Circle & Composite Figures
Circumference of a Circle
Missing Angles
Perimeter
Polygons
Pythagorean Theorem
Quadrilaterals
Surface Area of Rectangular Prisms
Volume & Surface Area of Cylinders
Volume of Cones, Rectangular Prisms, & Triangular Prisms

This is a complete lesson on ‘Angles in Quadrilaterals’ that is suitable for GCSE Higher & Foundation and KS3 students. The lesson is designed for the new GCSE specification.
The pack contains a full lesson plan, along with accompanying resources, including a student worksheet and suggested support and extension activities.

Missing Angles: These task cards are a great way for students to have fun while they practice geometry through angles.
Students must calculate the value of an angle given the different types of angles:
Complementary, Adjacent, Vertical, or Linear.
Answers are provided for each problem.
Do a search for my other Math Task Cards:
♦ Ages 6-9:
Addition
Arrays
Balancing Equations
Coins
Estimating Sums
Expanded Form
Fact Families
Greater Than Less Than
Long Division
Missing Addends
Multiplication Word Problems
Number Bonds Word Problems
Skip Counting
Subtraction
Telling Time
♦ Ages 9-11:
Balancing Equations
Capacity
Comparing Decimals
Decimals
Elapsed Time
Expanded Form
Exponents
Fact Families
Factors & Multiples
Fractions
Fractions on a Number Line
Greater Than Less Than
Greatest Common Factors
Least Common Multiple
Long Division
Mean, Median, Mode, & Range
Metric Measurement
Mixed Numbers
Multiplication
Number Patterns
Order of Operations
Percents
Place Value
Prime & Composite Numbers
Prime Factorization
Probability
Properties of Mult.
Rounding
Word Problems
♦ Ages 11-14:
Customary Measurements
Fractions: Add & Sub, Decimals, & Percents
Fractions: Equivalent & Reducing Fractions
Greater Than Less Than
Improper Fractions & Mixed Numbers
Integers
Operations with Fractions
Rational Numbers
Ratios
Simple Interest
♦ Geometry:
3D Shapes
Angle Pair Relationships
Area of a Circle & Composite Figures
Circumference of a Circle
Missing Angles
Perimeter
Polygons
Pythagorean Theorem
Quadrilaterals
Surface Area of Rectangular Prisms
Volume & Surface Area of Cylinders
Volume of Cones, Rectangular Prisms, & Triangular Prisms

This is a complete lesson on ‘Angles in Triangles’ that is suitable for GCSE Higher & Foundation and KS3 students. The lesson is designed for the new GCSE specification.
The pack contains a full lesson plan, along with accompanying resources, including a student worksheet and suggested support and extension activities.