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 PowerPoint Open Learning Sheet — Area Download 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 $lw$ ; triangle $\tfrac12 bh$ ; parallelogram $bh$ ; trapezium $\tfrac12(a+b)h$ .
Compound shapes: split into known pieces or subtract a cut-out.
Convert mixed units before multiplying (cm vs m).

Worked example 1 — Triangle

Base $10$ , height $6$ . Area?

Working

A=\tfrac{1}{2}\times10\times6=30

Half base times height.

Worked example 2 — Trapezium

Parallel sides $5$ and $9$ , height $4$ . Area?

Working

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

Average of parallels × height.

Worked example 3 — Compound shape

Rectangle $8\times5$ remove $3\times2$ . Area?

Working

40-6=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 / slides Open Learning Sheet Answers PDF

Worksheets Topic summaries Topic videos