Grade 8 Math: 1.1 Identifying Prime and Composite Numbers


This is the first section of my personal teaching notes for grade 8 math. My school uses the Nelson Mathematics 8 program, but I tend to use a variety of resources personally. The exercises suggested at the end of the notes are from the Nelson program, but the examples have been taken from a variety of sources.

The notes are meant to be used by the teacher, and gone through with students. I usually provide a high level of support during "Examples", by offering suggestions on how to go about doing things. The "Practice" problems are usually done a bit more independently, and I prefer to let students write their answers on the board as they finish, and then take the practice problems up as a class.

One way to do this, if you know your students well enough, is to assign one or two students to a problem, writing their names or initials on the board. Then they are responsible for filling out the answer. It can also be a good way to learn names at the beginning of the year. It is important to let students choose to pass their turn if they don't feel comfortable. Alternatively, you can say that you'll check their answer before they write it on the board.

2014-08-28 1.1 Identifying Prime and Composite Numbers.pdf --> Download as PDF.

ACTIVITY: A good activity to go with this is to use Eratosthene's Sieve and a 100's number chart to find the first 100 prime numbers. This is a good Javascript applet to use as an example for the kids. Just don't click on "1". :)


Chapter Overview / Table of contents. Not what you're looking for? Try the main Grade 8 Nelson Mathematics Lesson Plans.