• Free

Angles - basic

Where do students struggle with the basics of angles, where do they come from, and what can we do to help our students?

Course overview

In this course we delve into three angles related concepts:
  • Estimating and measuring angles
  • Angles in triangles
  • Angles on a straight line

We seek to identify and understand the specific misconceptions students have in these areas, and then consider ways we can support students understanding these concepts better.

Contents

Introduction

What is this course all about?
Introduction to the course
  • 2 mins
  • 44.4 MB
Preview

The angles challenge!

Let's get warmed up by trying to understand why these questions are troublesome
The angles challenge!
  • 1 min
  • 11.8 MB
The angles challenge (image)
  • 99.3 KB

What students meet and when

When do students encounter the key ideas in this course?
What students meet and when
  • 4 mins
  • 62.2 MB

How Diagnostic Questions are used

How are the questions that the data in this course is based on used in the classroom and at home?
How are Diagnostic Questions used?
  • 3 mins
  • 41 MB
Link: Diagnostic Questions
    Link: Eedi

      Mistakes versus misconceptions

      What is the difference between a mistake and a misconception, and does it really matter?
      1. Mistakes versus misconceptions
      • 3 mins
      • 26.3 MB
      2. Do Diagnostic Questions cause misconceptions?
      • 4 mins
      • 78.3 MB
      Research: The memorial consequences of multiple-choice testing
        Research: Multiple-Choice Tests Exonerated, at Least of Some Charges: Fostering Test-Induced Learning and Avoiding Test-Induced Forgetting

          Concept 1: Estimate and measure angles

          Where do students struggle with this area of angles, why do they struggle, and what can we do about it?
          1. Where might students go wrong?
          • 1 min
          • 9.37 MB
          2. DQ 1 (question)
          • 2 mins
          • 10.1 MB
          DQ1 (image)
          • 136 KB
          3. DQ1 (answer)
          • 4 mins
          • 61.7 MB
          4. Comparing angles, line lengths and arcs
          • 2 mins
          • 19.6 MB
          5. DQ2 (question)
          • 1 min
          • 2.86 MB
          DQ2 (image)
          • 101 KB
          6. DQ2 (answer)
          • 3 mins
          • 35.6 MB
          7. Estimating the size of angles - reflection
          • 1 min
          • 4.49 MB
          8. DQ3 (question)
          • 1 min
          • 1.96 MB
          DQ3 (image)
          • 191 KB
          9. DQ3 (answer)
          • 2 mins
          • 30.8 MB
          10. DQ4 (question)
          • 1 min
          • 4.19 MB
          DQ4 (image)
          • 244 KB
          11. DQ4 (answer)
          • 3 mins
          • 58.5 MB
          12. Measuring the size of angles - reflection
          • 1 min
          • 4.21 MB
          13. What can we do - retrieval
          • 6 mins
          • 86.3 MB
          14. What can we do - remove the scales
          • 2 mins
          • 33.6 MB
          Resource: protractor with no scales
          • 48.9 KB
          15. What can we do - intelligent practice
          • 6 mins
          • 123 MB
          Resource: Measuring angles

            Concept 2: Angles in triangles

            Where do students struggle with this area of angles, why do they struggle, and what can we do about it?
            1. Where might students go wrong?
            • 1 min
            • 5.22 MB
            2. DQ1 (question)
            • 1 min
            • 3.95 MB
            DQ1 (image)
            • 31.5 KB
            3. DQ1 (answer)
            • 3 mins
            • 47.1 MB
            4. How do different age groups get on?
            • 2 mins
            • 19 MB
            5. DQ2 (question)
            • 1 min
            • 1.87 MB
            DQ2 (image)
            • 136 KB
            6. DQ2 (answer)
            • 2 mins
            • 33 MB
            7. Scalene triangles - reflection
            • 1 min
            • 6.83 MB
            8. DQ3 (question)
            • 1 min
            • 2.7 MB
            DQ3 (image)
            • 121 KB
            9. DQ3 (answer)
            • 3 mins
            • 33.6 MB
            10. DQ4 (question)
            • 1 min
            • 2.46 MB
            DQ4 (image)
            • 35.3 KB
            11. DQ4 (answer)
            • 1 min
            • 16.3 MB
            12. Isosceles traingles - reflection
            • 1 min
            • 4.55 MB
            13. What can we do - include the unusual
            • 3 mins
            • 35.8 MB
            Twitter thread on "base" angles
              14. What can we do - go deep
              • 4 mins
              • 38.8 MB
              Resource: two isosceles triangles stuck together
                15. What can we do - intelligent practice
                • 3 mins
                • 28.7 MB
                Resource: Angles in isosceles triangles

                  Concept 3: Angles on a straight line

                  Where do students struggle with this area of angles, why do they struggle, and what can we do about it?
                  1. Where might students go wrong?
                  • 1 min
                  • 5.27 MB
                  2. DQ1 (question)
                  • 1 min
                  • 3.03 MB
                  DQ1 (image)
                  • 98.8 KB
                  3. DQ1 (answer)
                  • 3 mins
                  • 35.4 MB
                  4. DQ2 (question)
                  • 1 min
                  • 3.29 MB
                  DQ2 (image)
                  • 163 KB
                  5. DQ2 (answer)
                  • 5 mins
                  • 63.1 MB
                  6. DQ3 (question)
                  • 1 min
                  • 1.97 MB
                  DQ3 (image)
                  • 39.6 KB
                  7. DQ3 (answer)
                  • 3 mins
                  • 32.8 MB
                  8. DQ4 (question)
                  • 1 min
                  • 2.31 MB
                  DQ4 (image)
                  • 141 KB
                  9. DQ4 (answer)
                  • 3 mins
                  • 34.5 MB
                  10. Angles on a straight line - reflection
                  • 1 min
                  • 5.45 MB
                  11. What can we do - be more careful with language
                  • 5 mins
                  • 67.1 MB
                  12. What can we do - examples and non-examples
                  • 8 mins
                  • 104 MB
                  Resource: angles on a straight line: yes/no?
                    13. What can we do - practice questions
                    • 4 mins
                    • 73.4 MB
                    Resource: angles on a straight line worksheets
                      14. What can we do - Frayer diagram for retrieval
                      • 3 mins
                      • 33.3 MB

                      The angles challenge results!

                      The results are in... how did you do?
                      1. Angles challenge results
                      • 2 mins
                      • 15.7 MB
                      2. How to get the data
                      • 7 mins
                      • 212 MB
                      Link: Diagnostic Questions
                        3. How to use the data
                        • 4 mins
                        • 48.9 MB

                        Conclusion

                        A few thoughts before we say goodbye!
                        1. Your takeaway
                        • 2 mins
                        • 68.5 MB
                        2. Resources
                        • 3 mins
                        • 95.7 MB
                        My online courses.mp4
                        • 6 mins
                        • 239 MB
                        Link: My online courses
                          Link: Diagnostic Questions
                            Link: Eedi
                              Link: Eedi Help website

                                About Craig Barton

                                ​Craig Barton has been involved in teaching maths for 15 years. He was the the TES Maths Adviser for 10 years and is now the Head of Education at Eedi.  Craig is the author of the best-selling books “How I wish I’d taught maths” and "Reflect, Expect, Check, Explain", the host of the Mr Barton Maths Podcast, the creator of mrbartonmaths.com, diagnosticquestions.com, variationtheory.com, ssddproblems.com and mathsvenns.com, and Visiting Fellow at the Mathematics Education Centre at the University of Loughborough.