# Math

**Ministry of Education**

Gr 8 __outcomes/indicators__

### Math has four broad themes, each of which has many specific skills. You can view them at the Ministry of Education's website. The categories are:

### Number - divisibility rules, relating positive fractions, decimals and percents, operations with integers

### Patterns and Relations - linear relations (algebraic expressions and equations), graphing

### Space and Shape - use of Pi, circles, polygons, 2D relationships - bisectors, perpendicular etc.

### Statistics and Probability - measures of central tendency (average), outliers, circle graphs, determining likelihood

**Practice Quizzes**

### 8's __multiple choice quizzing__ This is the Gr. 8 collection of M/C quizzes connected to our primary resource, Math Focus 8.

**Math Focus Textbook**

Focus 8 math textbook - __all solutions__

**Current Focus - ****SS8.2 Surface Area of Prisms and Cylinders; SS8.2 Volume of Prisms and Cylinders**

Demonstrate understanding of the surface area and volume of 3-D objects limited to right prisms and cylinders (concretely, pictorially, and symbolically)

This section requires the use of a geometry kit and a calculator.

Grade 8 extends the understanding of 2D objects to their 3D counterparts. For this section, we focus mostly only on right prisms (think boxes) and cylinders (think Pringles can). Problems may involve triangular prisms as well. The goal is to generalize strategies that allow for the calculation of surface area and later volume. The concepts are connected and will be both assessed. Last year, students used formulae to solve for polygons and circles. This year, they will apply the same formulas to determine the area of more complex 3D objects that have sides that are a collection of those shapes. Separate, but related formulas, are used for volume.

concepts and terms - application of various formulas for the area of right parallelograms and circles, triangles; edge, vertex, face, prism, cylinder

A = BH (parallelogram)

A = πr2 (circle)

A = .5BH (triangle)

V = lwh (rectangular prism)

V = πr2 x h (cylinder)

V = .5lwh (triangular prism)