数学 · KS3 Y8 · Ratio & Proportion

Best-buy comparisons

m95免费149:57Heddy 星级 7 颗中 2 颗，未达标

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你需要知道的

  • Every whole number above 1 is a product of primes in only one way.
  • A factor tree splits a number until every branch ends in a prime.
  • Write the result in index form, such as 2³ × 3.

这个短片讲了

1:54–2:34Prime factorisationm26
2:34–5:17HCF & LCM by prime factorsm54
5:17–6:20Inequalities on a graphgcse-math-a22b
7:34–11:09Reverse percentagesm52
11:09–12:42Simple interest and money mathsgcse-math-r9b
12:42–16:41Compound interestmh12
20:00–21:40Standard form: large numbersm46
21:40–22:25Laws of indicesm41
22:25–23:20Fractional indicesmh6
23:20–25:05The product rule for countinggcse-math-n5b
25:05–27:03Error intervalsmh5
31:32–33:10Expanding a single bracketm61
33:10–34:33Quadratic expressionsmh1
34:33–36:15Factorising into a bracketm66
39:25–41:08Unknowns on both sidesm69
41:08–42:36Rearranging simple formulaem71
43:30–49:39Simultaneous equationsm19
57:49–60:53nth term of linear sequencesm70
63:32–67:20Graphs of quadraticsm85
71:34–75:27Ratio notationm7
85:58–89:49Speed, distance, timem96
91:17–93:20Pythagoras: the hypotenusem136
93:20–96:09Angles in parallel linesm123
96:09–98:39Angles in polygonsm16
109:47–111:50Bearingsm134
115:32–117:34Enlarging shapesm130
125:20–127:05Scatter graphs & correlationm20
135:10–139:29Tree diagramsmh17
141:55–145:36Trigonometry first stepsmh2
145:36–147:47Trigonometry: finding anglesmh16
也讲到Best-buy comparisonsm95
也讲到Density as a ratem97
也讲到Currency conversionm100
也讲到Inverse proportionm103
也讲到Area of a trapeziumm125
也讲到Volume of cylindersm140
也讲到Venn diagrams for probabilitym157
也讲到Frequency treesm159
也讲到Arcs & sectorsmh14
也讲到Frequency polygonsmh19
Heddy 星级2/7, 未达标
  • 可信来源 · 已通过. 创作者本人上传，链接有效，可以在这里播放。
  • 对准知识点 · 待评. 老师看过：它主要讲的就是这个知识点。
  • 符合考纲 · 待评. 内容准确，符合现行英国考纲。
  • 聚焦 · 已通过. 只讲一个概念，短到可以一口气看完。
  • 无障碍 · 待评. 字幕可靠，声音和画面清楚。
  • 适合青少年 · 待评. 适合 11 到 16 岁的学生，没有推销。
  • 有成效 · 待评. 由我们的学生评出：看了学得会、觉得有帮助、愿意看到最后。
★ 已通过 · ☆ 待评 · ✕ 未通过
我们的学生

学生人数还不够

我们自己学生的回答，第 7 颗星“有成效”就由这些决定。
Heddy 星级怎么评

为什么选它

Long crossover revision video covering the topics shared by Foundation and Higher; best used chapter by chapter by Year 10–11 students aiming for grade 5.

YouTube 频道：The GCSE Maths Tutor2026-10-16 核对