apt4Maths: APPROXIMATIONS – ROUNDING PowerPoint for GCSE Maths (Place Value and Approximations)

PowerPoint Presentation on Approximations – Rounding (18 slides): Explains how to approximate by rounding to the nearest 10, 100, 1000, etc. It has been written by a highly experienced teacher (of 25+ years), senior examiner and reviser for Maths and Stats examinations. It includes:

Lesson objectives
Step-by-step explanations of the subject matter
Examples to aid understanding
Questions to check understanding
Answers to questions, with explanations
Suggestions regarding which topic(s) should be moved on to next

This is 1 of a set of 11 PowerPoints on ‘Place Value and Approximations’ that APT Initiatives has published for GCSE (and Key Stage 3) Mathematics. The full set of 11 PowerPoints (130 slides, excluding Title Pages) covers the following topics on ‘Place Value and Approximations’:

01 Place Value – Integers (10 slides).
02 Place Value – Decimals (10 slides).
03 Order and Compare Numbers (10 slides).
04 Multiply and Divide by Powers of Ten (16 slides).
05 Standard (Index) Form (17 slides).
06 Approximations – Rounding (18 slides).
07 Approximations – Decimal Places (8 slides).
08 Approximations – Significant Figures (8 slides).
09 Estimating / Checking Answers (11 slides).
10 Error Intervals (13 slides).
11 Error Bounds (9 slides).

These are one of several sets of PowerPoint Presentations, which essentially relate to the ‘number’ section of the Maths specifications. These other sets of PowerPoints concern:

Calculations
Fractions
Percentages

Note: Work on multiplying and dividing by powers of ten as well as standard form is also included in the ‘Calculations‘ Pack.

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