Finding Prime Numbers

Finding Prime Numbers
Finding Prime Numbers
Finding Prime Numbers
Finding Prime Numbers

              Finding Prime Numbers

              Students learn about finding prime numbers using factor pairs and the Sieve of Eratosthenes.  Throughout the lesson students are recall and apply the first 12 primes to solve a range of problems.To begin the lesson students recap finding the highest common factor of a group of numbers.  In the main part they are taught to find the first 12 prime numbers using factors.  The end of lesson challenges students to explore the sum of various primes.
              Differentiated Learning Objectives
              • All students should be able to calculate the first 12 prime numbers.
              • Most students should be able to use the Sieve of Eratosthenes to calculate the first 15 prime numbers.
              • Some students should be able to investigate any pattern within prime numbers.
              View online lesson
              Lesson Downloads
              Download PowerPoint Download Notebook Download Flipchart Download Worksheet
              Scheme of Work Link
              Multiples, Factors, Primes and Squares
              Related Blog
              5 ways how to connect factor pairs to other areas of maths 
              IMMEDIATE DOWNLOAD

              Mr Mathematics Blog

              Getting Ready for a New School Year

              When getting ready for a new school year I have a list of priorities to work through. Knowing my team have all the information and resources they need to teach their students gives me confidence we will start the term in the best possible way.  Mathematics Teaching and Learning Folder All teachers receive a folder […]

              Mathematics OFSTED Inspection – The Deep Dive

              Earlier this week, my school took part in a trial OFSTED inspection as part of getting ready for the new inspection framework in September 2019. This involved three Lead Inspectors visiting our school over the course of two days. The first day involved a ‘deep dive’ by each of the Lead Inspectors into Mathematics, English […]

              How to Solve Quadratics by Factorising

              The method of how to solve quadratics by factorising is now part of the foundational knowledge students aiming for higher exam grades are expected to have.   Here is an example of such a question. Solve x2 + 7x – 18 = 0 In my experience of teaching and marking exam papers students often struggle with […]