Learning Outcomes

Number Systems

Arithmetic Calculations

Working with Shapes

Lesson Summary

In this module, you will learn how to work with and solve number systems including indices, arithmetic series and geometric series. You'll also use arithmetic to work with percentages, simple interest, compound interest and depreciation. Finally, covering how to calculate the length, area or volume of shapes or segments.

Strand 3 Junior Certificate Ordinary Level Numbers and Shapes - Course Assessment

Gain better understanding of working with complex numbers in this free online course.

Strand 3 Junior Certificate Ordinary Level Numbers and Shapes

Numbers and shapes, concepts that are the basic building blocks of arithmetic and algebra. In this course, you will study a variety of topics to prepare you for your Junior Certificate. Cover topics like scientific notation and indices rules. As well as calculating interest, formulas used to calculate the area of different shapes will be taught. Whether you are a student or simply looking to brush up on your maths skills this course is for you.

Coursera Q4 2025: 197M Learners, ~$197M Revenue, ~$27M in Losses

CreativeLive is Live Again: CourseHorse Acquires Platform 15 Days Before Shutdown

University of Sheffield Ends 11-Year Partnership with FutureLearn

6 Best Influencer Marketing Courses for Marketers

Coursera, Udemy, and the $10M+ Video Privacy Battle: Class Action Update

8 Best Geology Courses for 2025

15 Best Lisp Courses for 2025

Best CSS Layout Courses for 2025

6 Best Courses to Become an Influencer in 2025

BloomTech’s Downfall: A Long Time Coming

Coursera and Udemy Shareholders Approve Merger With 99% of Votes

Unlock 800+ Free Certificates: Master Tech & Soft Skills with CodeSignal Learn

Learn Something New: 100 Most Popular Courses For December

Duolingo Q1 2026: Toward 100M DAUs with Record Engagement and Slower Paid Growth

20 Most Cited Research Papers on MOOCs

The Series Finale of Online Education: Coursera Acquires Udemy