This is designed for anyone who is bad at maths, struggles with maths or not confident with their maths. Most people from the general public are at this level. The only assumed prerequesite is knowing how to count. I have made an effort to address various pitfalls and struggles that I have seen when talking to struggling mathematicians in this video. If you are at least as good at maths as being able to get a grade A or a confident/strong B on maths GCSE papers or equivalent, you probably don’t need this.
Here is the video for this level:
List of timestamps [Expand]
0:00:00 - Intro
0:01:13 - Number line, counting, adding, subtracting, positive and negative numbers (whole numbers only)
0:04:35 - Multiplication (positive and negative numbers, whole numbers only)
0:22:04 - How to divide numbers (decimal case at 28:01)
0:29:56 - A few misc points about everything until then
0:33:26 - Order of operations (in particular resolution of 6/2(1+2))
0:44:01 - Factors, multiples and primes (definition only) + Statement of goldbach's conjecture
0:49:58 - Quick note on time
0:51:25 - More on fractions
1:12:31 - Powers (definition for whole number exponents)
1:15:11 - Roots (definition) and definition of the term "Principal root"
1:17:47 - Scientific notation (definition)
1:21:02 - Rules of powers (also known as "index laws")
1:28:45 - More misc things on powers
1:31:27 - Scientific notation (more detail and examples)
1:35:08 - Ratios (definition) and definition of "proportional"
1:37:00 - Rounding and estimation, definition of "significant figures"
1:43:19 - First introduction to algebra and the idea of letters in math with my best attempt at explanations and also examples of solving linear equations
1:56:22 - Expanding (brackets)
2:14:03 - Factorizing (reverse of expanding, quadratic case reserved for part 2)
2:18:35 - Definition of the terms "equation", "expression", "formula"
2:20:16 - Word problem examples
2:28:15 - Rearranging / changing the subject of an equation examples
2:40:54 - "Proof" 1 = 2 and a lesson to take from this
2:43:53 - On 0.9999.... = 1 ?
2:45:42 - Simplifying expressions examples + more power rule / index laws
2:50:09 - Statement of a few cool simple unsolved problems (twin prime, collatz) and fermat's last theorem. This is purely for motivational purposes about why math is cool and stuff.