EMath Revision Videos by Yee Teng Yeo

Perpendicular Bisector

yeo_yee_teng_a — 2021-03-07 08:03:13 UTC

Angle Bisector

yeo_yee_teng_a — 2021-03-07 08:04:07 UTC

Intro to Matrices

2021-03-08 03:48:57 UTC

Sine rule / Cosine rule

2021-03-08 03:49:45 UTC

Factorising by Grouping

2021-03-08 03:50:23 UTC

summary of symmetry of circles

2021-03-08 03:50:34 UTC

Multiplying Matrices

2021-03-08 03:50:35 UTC

Map Scale

2021-03-08 03:51:06 UTC

Coordinate geometry, basic intro and examples

2021-03-08 03:51:51 UTC

symmetry properties of circles - Chords and Tangents

2021-03-08 03:52:12 UTC

Intro to Bearing

2021-03-08 03:52:45 UTC

How to find bearing

Tree diagram

2021-03-08 03:52:48 UTC

Adding and subtracting matrices

2021-03-08 03:52:55 UTC

Set notation

2021-03-08 03:53:04 UTC

2021-03-08 03:53:07 UTC

Volume and surface area

Bearing

2021-03-08 03:53:32 UTC

How to solve bearing

Scalar Multiplication of Matrices

2021-03-08 03:54:06 UTC

HCF/LCM Introduction

2021-03-08 03:54:27 UTC

angle properties of circles

2021-03-08 03:54:35 UTC

Factorising Special Products

2021-03-08 03:55:00 UTC

Conversion of Units

2021-03-08 03:55:06 UTC

Probability without replacement

2021-03-08 03:55:43 UTC

Arc Length and Sector Area (degree and radian)

2021-03-08 03:56:45 UTC

square root and cube root introduction

2021-03-08 03:56:56 UTC

Congruence and similarity

2021-03-08 03:58:11 UTC

Comparing 2 Quantities with Percentage

2021-03-08 03:58:34 UTC

Angle of Elevation & Depression

2021-03-08 03:58:45 UTC

Congruence and similarity proof

2021-03-08 03:59:02 UTC

Example of congruence and similarity

2021-03-08 03:59:24 UTC

common o lvl qns for prime factors etc

2021-03-08 03:59:27 UTC

start at 2:00

Expressing One Quantity as a Percentage of Another Quantity

2021-03-08 04:00:32 UTC

Ratio of similar area

2021-03-08 04:01:05 UTC

Pythagoras theorem

2021-03-08 04:01:18 UTC

Multiplying/Dividing of Algebraic Fractions

2021-03-08 04:01:38 UTC

Ratio of similar volume

2021-03-08 04:02:06 UTC

3D Diagrams

2021-03-08 04:02:42 UTC

Direct and Indirect Proportion

2021-03-08 04:03:43 UTC

Sum of Interior Angles of a Polygon

yeo_yee_teng_a — 2021-03-23 06:56:37 UTC

Sum of Exterior Angles of A Polygon

yeo_yee_teng_a — 2021-03-23 06:58:15 UTC

Properties of Angles between Parallel Lines

yeo_yee_teng_a — 2021-03-23 07:00:39 UTC

venn diagram

yeo_yee_teng_a — 2021-04-12 02:56:35 UTC

Union and Intersection of Sets

yeo_yee_teng_a — 2021-04-12 02:57:21 UTC

Probability example on Poker Cards

yeo_yee_teng_a — 2021-04-12 03:01:55 UTC

Mean, Median, Mode

yeo_yee_teng_a — 2021-04-15 01:28:17 UTC

Box and Whiskers

yeo_yee_teng_a — 2021-04-15 01:40:23 UTC

Use Calculator to check answer for SD

yeo_yee_teng_a — 2021-04-15 01:43:43 UTC

You need to show the intermediate step to sub in values into SD formula

Dot Diagram

yeo_yee_teng_a — 2021-04-15 01:58:29 UTC

Topics: 1) dot diagram, stem and leaf, box & whiskers, cum freq curve and find IQR, percentile 2) Mean, median, mode, Standard Deviation

yeo_yee_teng_a — 2021-04-15 03:23:28 UTC

Mean, Median, Mode (Grouped Data)

yeo_yee_teng_a — 2021-04-15 03:33:09 UTC

Cumulative Frequency Curve

yeo_yee_teng_a — 2021-04-15 03:35:31 UTC

plot point with crosses not dots

Plotting Graphs

yeo_yee_teng_a — 2021-04-16 00:43:07 UTC

remember to label your graph with the equation of curve

Drawing Tangent at a point of the curve

yeo_yee_teng_a — 2021-04-16 01:30:05 UTC

Types of Polygons

yeo_yee_teng_a — 2021-04-19 03:59:40 UTC

Properties of Quadrilaterals

yeo_yee_teng_a — 2021-04-19 04:00:13 UTC

Law of Indices

yeo_yee_teng_a — 2021-04-22 02:24:04 UTC

Solving Indices Equations

yeo_yee_teng_a — 2021-04-22 02:27:37 UTC

Fractional Indices

yeo_yee_teng_a — 2021-04-22 02:31:49 UTC

Intro to Standard Form

yeo_yee_teng_a — 2021-04-22 02:40:48 UTC

Converting numbers to standard form and +,-,x, / of standard form

yeo_yee_teng_a — 2021-04-22 02:43:01 UTC

to find out the index n to write on 10^n number (no. more than 1) --> SF count no. of digits after 1st digit number (no. less than 1) --> SF count no. of 0 in front of 1st digit

Using Calculator to convert numbers to standard form

yeo_yee_teng_a — 2021-04-22 02:44:41 UTC

Percentage

yeo_yee_teng_a — 2021-04-22 03:11:57 UTC

Number pattern with common difference

yeo_yee_teng_a — 2021-04-22 03:22:17 UTC

Number pattern with diagrams

yeo_yee_teng_a — 2021-04-22 03:35:50 UTC

Intro to Number Pattern

yeo_yee_teng_a — 2021-04-22 03:38:35 UTC

Add/Subtract Algebraic Fractions

yeo_yee_teng_a — 2021-04-22 03:44:37 UTC

Simplify Algebraic Fractions

yeo_yee_teng_a — 2021-04-22 03:45:35 UTC

using factorisation/math frame/tic tac toe method

Change Formula of Subject

yeo_yee_teng_a — 2021-04-22 03:59:18 UTC

start at 1:20

Solve equations involving fractions

yeo_yee_teng_a — 2021-04-22 04:05:42 UTC

Simultaneous Equation by Substitution

yeo_yee_teng_a — 2021-04-22 04:08:51 UTC

Simultaneous Equation by Graphical method

yeo_yee_teng_a — 2021-04-22 04:10:44 UTC

stop at 2:30
1. Rearrange equation to make y the subject
2. draw a table and sub in 3 x-values to find corresponding y-values to draw the line
3. find point of intersection

Inequality

yeo_yee_teng_a — 2021-04-22 04:18:52 UTC

Solving Inequality

yeo_yee_teng_a — 2021-04-22 04:20:49 UTC

Solve Inequality and represent on number line

yeo_yee_teng_a — 2021-04-22 04:33:45 UTC

Sketch Graph of Quadratic Equations

yeo_yee_teng_a — 2021-04-22 04:54:32 UTC

start 3:30 and stop 10:50
1. look at x^2 to know shape of graph (u or n)
2. sub in x=0 to find y-intercept
3. sub in y=0 to find x-intercept
4. take average of 2 x-intercept to find line of symmetry
5. to find turning point, sub in line of symmetry x value to find y coordinate

Simple Interest

yeo_yee_teng_a — 2021-04-22 06:44:10 UTC

I = Prt/100

Compound Interest

yeo_yee_teng_a — 2021-04-22 06:49:51 UTC

Example

yeo_yee_teng_a — 2021-04-22 06:54:47 UTC

Converse of Pythagoras' Theorem

yeo_yee_teng_a — 2021-04-22 07:15:33 UTC

Volume and Surface Area of Figures

yeo_yee_teng_a — 2021-04-22 07:21:08 UTC

Conversion between degree and radian

yeo_yee_teng_a — 2021-04-22 07:33:26 UTC

degree ---> rad
x pi/180
rad --> degree
x 180/pi

Find Equation of line

yeo_yee_teng_a — 2021-04-22 07:40:17 UTC

TOA CAH SOH

yeo_yee_teng_a — 2021-08-01 03:08:39 UTC

Finding unknown side

Angle Properties of Circle Introduction

yeo_yee_teng_a — 2023-02-14 02:10:19 UTC

Example - Angle Properties of Circle Question

yeo_yee_teng_a — 2023-02-14 02:10:58 UTC

eg1 Perfect Square

yeo_yee_teng_a — 2024-10-29 00:15:54 UTC

eg2 Perfect Square

yeo_yee_teng_a — 2024-10-29 00:21:43 UTC

eg1 Perfect Cube

yeo_yee_teng_a — 2024-10-29 00:27:00 UTC

eg1 Multiples

yeo_yee_teng_a — 2024-10-29 00:39:56 UTC

eg1 HCF

yeo_yee_teng_a — 2024-10-29 00:48:11 UTC

eg1 LCM

yeo_yee_teng_a — 2024-10-29 00:48:36 UTC

eg1 HCF and LCM (basic)

yeo_yee_teng_a — 2024-10-29 00:58:23 UTC

eg1 Polygons

yeo_yee_teng_a — 2024-10-29 01:07:18 UTC

eg1 Number Patterns

yeo_yee_teng_a — 2024-10-29 01:07:42 UTC

eg2 LCM

yeo_yee_teng_a — 2024-10-29 01:16:22 UTC

eg2 Number Patterns

yeo_yee_teng_a — 2024-10-29 01:18:12 UTC

eg3 Perfect Square

yeo_yee_teng_a — 2024-10-29 01:33:17 UTC

eg1 Conversion of Units

yeo_yee_teng_a — 2024-10-29 01:41:54 UTC

eg1 Inverse Proportion

yeo_yee_teng_a — 2024-10-29 02:05:49 UTC

eg1 Map Scale

yeo_yee_teng_a — 2024-10-29 02:10:23 UTC

eg1 Multiples

yeo_yee_teng_a — 2024-10-29 02:12:27 UTC

eg1 direct proportion

yeo_yee_teng_a — 2024-10-29 02:56:21 UTC