Introduction to Theme 4:


You will practise measuring rectangles, angles, and circles in this theme.


Everyday measurement


In this theme, you will learn about many different types of measurements. You will estimate and calculate the area of rectangles, quadrilaterals, and triangles. You will construct rectangles and learn about the parts of a circle. You will then learn about angles and about elements of time. Throughout the lessons, you will see how we can use these measurements in our everyday lives.


This theme includes five lessons:

  • Lesson 15 — Finding Area
  • Lesson 16 — Constructing Rectangles
  • Lesson 17 — Circles
  • Lesson 18 — Angles
  • Lesson 19 — Time