Graham Lewis

@UC_dNNR4_M7uOBZf-WaQjjsg - 475 subscribers

Educational videos to help learn mathematics and statistics at the High School Level for different years/grades 7-13. I took the photo in Alberta, Canada; it is Lake Peyto, and as I find mathematics a very beautiful subject I needed a beautiful photo for the site!

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Moveable line in Fathom explaining least squares line

Moveable line in Fathom explaining least squares line Graham Lewis

522 views - 3 years ago

Meaningful date sequence activity!

Meaningful date sequence activity! Graham Lewis

53 views - 4 years ago

Meaningful date sequence activity!

Meaningful date sequence activity! Graham Lewis

10 views - 4 years ago

$Algebra fractions 3 getting more complicated!$ 6:20

Algebra fractions 3 getting more complicated! Graham Lewis

55 views - 4 years ago

$Algebra fractions 2$ 5:35

Algebra fractions 2 Graham Lewis

18 views - 4 years ago

Algebra Fractions Grade 7-9

Algebra Fractions Grade 7-9 Graham Lewis

54 views - 4 years ago

Fraction word problem

Fraction word problem Graham Lewis

35 views - 5 years ago

$Subtracting mixed fractions 2 methods$ 8:43

Subtracting mixed fractions 2 methods Graham Lewis

31 views - 5 years ago

Fractions 7: BEDMAS!

Fractions 7: BEDMAS! Graham Lewis

235 views - 5 years ago

Fractions 6: dividing Fractions

Fractions 6: dividing Fractions Graham Lewis

16 views - 5 years ago

Fractions 5: Multiplying Mixed Fractions

Fractions 5: Multiplying Mixed Fractions Graham Lewis

16 views - 5 years ago

Fractions 5: Multiplying Mixed Fractions

Fractions 5: Multiplying Mixed Fractions Graham Lewis

22 views - 5 years ago

$Fractions 4: Multiplying simple fractions$ 7:12

Fractions 4: Multiplying simple fractions Graham Lewis

32 views - 5 years ago

Fractions 3: adding and subtracting Mixed Numbers

Fractions 3: adding and subtracting Mixed Numbers Graham Lewis

40 views - 5 years ago

$Fractions 2: Adding and Subtracting fractions$ 4:55

Fractions 2: Adding and Subtracting fractions Graham Lewis

30 views - 5 years ago

Fractions 1: Equivalent Fractions

Fractions 1: Equivalent Fractions Graham Lewis

21 views - 5 years ago

Inequalities 2: negative number of x's!

Inequalities 2: negative number of x's! Graham Lewis

110 views - 5 years ago

Inequalities 1; Simple Linear Inequalities

Inequalities 1; Simple Linear Inequalities Graham Lewis

28 views - 5 years ago

Algebra Linear Equations different approaches

Algebra Linear Equations different approaches Graham Lewis

35 views - 5 years ago

Arithmetic Linear Sequence Patterns!

Arithmetic Linear Sequence Patterns! Graham Lewis

160 views - 5 years ago

How to Draw graphs in Fathom

How to Draw graphs in Fathom Graham Lewis

634 views - 5 years ago

Analysing your Data - it's FUN!

Analysing your Data - it's FUN! Graham Lewis

159 views - 5 years ago

Describing data across multiple categories: 2 Var Analysis

Describing data across multiple categories: 2 Var Analysis Graham Lewis

586 views - 5 years ago

1 Variable Analysis

1 Variable Analysis Graham Lewis

72 views - 5 years ago

Drawing Boxplots, histograms, scatterplots Excel and Fathom

Drawing Boxplots, histograms, scatterplots Excel and Fathom Graham Lewis

452 views - 5 years ago

Coding Likert type scales in Excel

Coding Likert type scales in Excel Graham Lewis

45.1K views - 5 years ago

Confidence Interval for a mean

Confidence Interval for a mean Graham Lewis

120 views - 5 years ago

Confidence Intervals for Proportions

Confidence Intervals for Proportions Graham Lewis

154 views - 5 years ago

What is a Confidence Interval?

What is a Confidence Interval? Graham Lewis

165 views - 5 years ago

Re-expressing Data to make linear!

Re-expressing Data to make linear! Graham Lewis

164 views - 5 years ago

Worked example of a Normal Distribution Problem

Worked example of a Normal Distribution Problem Graham Lewis

76 views - 5 years ago

Normal Distribution Example and History Part 1

Normal Distribution Example and History Part 1 Graham Lewis

279 views - 5 years ago

Regression Inference on the slope and computer outputs

Regression Inference on the slope and computer outputs Graham Lewis

124 views - 5 years ago

Chi squared test for Independence

Chi squared test for Independence Graham Lewis

51 views - 5 years ago

Chi squared for Homogeneity and standardised residuals

Chi squared for Homogeneity and standardised residuals Graham Lewis

227 views - 5 years ago

Standard Deviation and Variance

Standard Deviation and Variance Graham Lewis

301 views - 5 years ago

Using Excel to find the Quartiles and Interquartile Range

Using Excel to find the Quartiles and Interquartile Range Graham Lewis

11.1K views - 5 years ago

Chi squared Goodness of fit Test

Chi squared Goodness of fit Test Graham Lewis

85 views - 5 years ago

Exact Form Differential Equations and Integrating Factors

Exact Form Differential Equations and Integrating Factors Graham Lewis

61 views - 5 years ago

Tukey's Method for finding Outliers

Tukey's Method for finding Outliers Graham Lewis

4.4K views - 5 years ago

Understanding Remote Timetable for Upper and Senior School

Understanding Remote Timetable for Upper and Senior School Graham Lewis

224 views - 5 years ago

Remote Learning Introduction!

Remote Learning Introduction! Graham Lewis

35 views - 5 years ago

Rule of sum counting

Rule of sum counting Graham Lewis

114 views - 6 years ago

Tricky tree diagram Probability Question

Tricky tree diagram Probability Question Graham Lewis

260 views - 6 years ago

Dependent Tree Diagram Question

Dependent Tree Diagram Question Graham Lewis

115 views - 6 years ago

Permutations and some Tricky Counting

Permutations and some Tricky Counting Graham Lewis

202 views - 6 years ago

Regression Analysis AP Statistics

Regression Analysis AP Statistics Graham Lewis

346 views - 7 years ago

Using area to go backwards to solve a Normal Distribution

Using area to go backwards to solve a Normal Distribution Graham Lewis

168 views - 7 years ago

Normal Distribution Probability Question AP Statistics

Normal Distribution Probability Question AP Statistics Graham Lewis

147 views - 7 years ago

Standard Deviation for samples and populations.

Standard Deviation for samples and populations. Graham Lewis

97 views - 7 years ago

How to use Excel to calculate Present Value Annuity

How to use Excel to calculate Present Value Annuity Graham Lewis

841 views - 7 years ago

How to use Excel to calculate Future Value Annuity

How to use Excel to calculate Future Value Annuity Graham Lewis

450 views - 7 years ago

Using the Financial Present Value Formula

Using the Financial Present Value Formula Graham Lewis

59 views - 7 years ago

Financial Formula for Present Value

Financial Formula for Present Value Graham Lewis

73 views - 7 years ago

Present Value of annuity, example as a Geometric Series

Present Value of annuity, example as a Geometric Series Graham Lewis

1.3K views - 7 years ago

Ordinary annuity: working out the regular payment

Ordinary annuity: working out the regular payment Graham Lewis

79 views - 7 years ago

Ordinary Annuity; future value as a geometric series

Ordinary Annuity; future value as a geometric series Graham Lewis

896 views - 7 years ago

Drawing a 3 circle Venn Diagram

Drawing a 3 circle Venn Diagram Graham Lewis

1.9K views - 8 years ago

Proof of Sum of an Arithmetic Series

Proof of Sum of an Arithmetic Series Graham Lewis

84 views - 8 years ago

Critiquing a really bad survey!

Critiquing a really bad survey! Graham Lewis

3.7K views - 8 years ago