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# AS 1.5 Measurement Home AS91030

Unit Overview
##### Summary: 3 Credit Internal Assessment

Metric conversion & scales, practical measuring, estimation, areas, perimeter, volume, modelling, capacity, distance, speed, time, density, flow & pressure

• Convert between metric units, using decimals.
• Deduce and use formulae to find the perimeters and areas of polygons, and volumes of prisms.
• Find the perimeters and areas of circles and composite shapes and the volumes of prisms, including cylinders.
• Apply the relationships between units in the metric system, including the units for measuring different attributes and derived measures.
• Calculate volumes, including prisms, pyramids, cones, and spheres, using formulae.

Link to NZQA resources with worked examples and explanation

• AS91030 - Apply Measurement in Solving Problems (1.5A) - ASSESSMENT RESOURCE A
• AS91030 - Apply Measurement in Solving Problems (1.5B) - ASSESSMENT RESOURCE B

Lesson Outline

There are links to lesson web pages and word documents (MS word 2003) of the overhead projector lesson notes.
Note: When printing these word documents 'landscape' print setting is recommended

MS word Lesson sequence and overview

Lesson Topic

#### Text Reference

1

2

Practical measurement

#### Gamma p228 Ex 13.1 p245 Ex 13.8

http://www.teacherled.com

http://www.teacherled.comB

3

Metric conversions

4

Areas

#### Waldo Maths java applet demonstrations a  Area of a triangle

5 Circles: Perimeter, circumference, sector area

#### Gamma p233 p234 Ex 13.4

6

Volumes: Prisms, Cylinders, Pyramids, Cones

#### Gamma p238 p239 Ex 13.6

7

More areas & Volumes

#### Gamma p243 Ex 13.7

8

Surface areas

9

Limits of accuracy, sig figs, rounding

#### Gamma p28 Ex 2.3 p31 Ex 2.4

10

Irregular shapes

11

Time, 24 hr, Density

12

Rates of change, Velocity

#### Gamma p311 Ex 18.1 p319 Ex 18.4 p284 Ex 15.3 p169 Ex 10.2

13

Modelling areas/vol & reasons

14

TEST

15