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PPT lesson summary · Foundation PPT · CIE Core

Area PPT lesson summary

Area PPT lesson — Foundation (CIE Core). These slides walk a lower-secondary class through the key ideas with diagrams and worked examples on screen. This page summarises the teaching points for search and revision; download the PowerPoint for the full lesson, and use the companion worksheet and answers PDFs for independent practice.

Download Area PowerPointOpen Learning Sheet — AreaDownload Area answers PDF

Files: foundation-slides-01M65KZRZZE3JN1X9P2BKTHBMX.pptx · foundation-4 Area handout.pdf · foundation-4 Area handout answers.pdf · free public downloads · diagrams on the slides

Key learning points

  • Rectangle lwlw; triangle 12bh\tfrac12 bh; parallelogram bhbh; trapezium 12(a+b)h\tfrac12(a+b)h.
  • Compound shapes: split into known pieces or subtract a cut-out.
  • Convert mixed units before multiplying (cm vs m).

Worked example 1 — Triangle

Base 1010, height 66. Area?

Working

A=12×10×6=30A=\tfrac{1}{2}\times10\times6=30

Half base times height.

Worked example 2 — Trapezium

Parallel sides 55 and 99, height 44. Area?

Working

A=12(5+9)×4=28A=\tfrac{1}{2}(5+9)\times4=28

Average of parallels × height.

Worked example 3 — Compound shape

Rectangle 8×58\times5 remove 3×23\times2. Area?

Working

40−6=3440-6=34

Add or subtract known areas.

Full slides and practice PDFs

This page is a short, searchable overview of the PPT lesson for revision and search engines. Download the PowerPoint for classroom teaching, then use the companion worksheet and answers when available.

PowerPoint / slidesOpen Learning SheetAnswers PDF
WorksheetsTopic summariesTopic videos