数学 · GCSE · Statistics

Histograms

gcse-math-s3a免费5:07Heddy 星级 7 颗中 2 颗，未达标

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你需要知道的

  • In a histogram the area of a bar shows the frequency.
  • Frequency density is frequency divided by class width.
  • Bars can have different widths.

这个短片讲了

0:52–2:35Fractional indicesmh6
2:35–5:48Upper and lower bounds in calculationsgcse-math-n16b
5:48–8:53Recurring decimals to fractionsmh7
8:53–11:45Compound interestmh12
11:45–15:36Calculating with surds and rationalising denominatorsgcse-math-n8d
21:12–23:21Expanding three or more bracketsgcse-math-a4e
23:21–25:13Factorising harder quadraticsgcse-math-a4f
25:13–28:12Rearranging multi-step formulaemh10
28:12–31:35nth term of a quadratic sequencegcse-math-a25b
31:35–33:20Completing the squaregcse-math-a18d
33:20–38:02Simultaneous equations: one linear, one quadraticgcse-math-a19c
38:02–41:13Quadratic inequalities and set notationgcse-math-a22c
41:13–46:22Inequalities on a graphgcse-math-a22b
46:22–50:03The quadratic formulagcse-math-a18e
50:03–55:08Algebraic fractionsgcse-math-a4g
55:08–56:17Inverse functionsgcse-math-a7c
56:17–58:41Composite functionsgcse-math-a7d
62:37–66:24Transforming graphsgcse-math-a13
66:24–69:52Algebraic proofgcse-math-a6c
72:18–76:08Tangent to a circlegcse-math-a16b
78:44–82:08Volume of pyramids, cones and spheresgcse-math-g17b
82:08–90:16Similar shapes: areas and volumesgcse-math-g19b
90:16–93:48Circle theorems: anglesgcse-math-g10a
96:21–101:17The sine rulegcse-math-g22a
101:17–105:53The cosine rulegcse-math-g22b
108:44–115:29Vector proofsgcse-math-g25b
117:57–122:03Box plotsgcse-math-s4c
122:03–126:44Cumulative frequency graphsgcse-math-s3b
126:44–131:51Histogramsgcse-math-s3a
163:59–167:41Dependent eventsgcse-math-p8b
也讲到Calculating in standard formm48
也讲到Reverse percentagesm52
也讲到Iterationgcse-math-a20
也讲到Perpendicular linesgcse-math-a9d
也讲到Composite solids and frustumsgcse-math-g17d
也讲到Area of any trianglegcse-math-g23
也讲到Arcs & sectorsmh14
也讲到The product rule for countinggcse-math-n5b
也讲到Venn diagrams for probabilitym157
也讲到Area under a graphgcse-math-a15b
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 Higher-only revision video for grades 6–9; use chapter by chapter with Year 11 Higher students.

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